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ID Date Author Topic Subject
  347   23 Feb 2007 Konstantin OlchanskiInfoRFC- history system improvements
While running the ALPHA experiment at CERN, we stressed and broke the MIDAS history system. We 
generated about 0.5 GB of history data per day, and this killed the performance of the history plot 
system in mhttpd - we had to wait for *minutes* to look at any plots of any variables.

One way to address this problem could be by changing the way ALPHA slow controls data is collected.

Another way to address this problem could be by improving the midas history system by removing 
some of the existing limitations and inefficiencies, enabling it to handle the ever increasing data 
volumes we keep throwing at it.

I feel the second approach (improving midas) is more useful in general and it appears that big 
improvements can be made by small modifications of existing code. No rewrites of midas are required. 
Read on.

Issue 1: in the mlogger, history is recorded with fairly coarse granularity.

For an equipment, if any varible changes, *all* variables for that equipment are written into the history 
file.

Historically, this worked fairly well for experiments with low data rates (a few history changes per 
minute) and with variables equally distributed between different equipments. But even for a modest 
sized experiment like TRIUMF-E614-TWIST, recording many variables when only one has changed has 
been a visible inefficiency. Current experiments wish to record more history data more frequently, but 
even with latest and greatest hardware, in the case of ALPHA, this inefficiency has become a 
performance killer.

One could solve this problem by refactoring the data (one variable per equipment/one equipment per 
variable). I find this approach inelegant and contrary to the "midas way" (whatever that is).

An alternative would be to change the mlogger to record history with per-variable granularity. When 
one variable changes, only that variable is recorded. Preliminary examination of the existing code 
indicates that history writing in the mlogger is already structured in a way that makes it easy to 
implement, while the history reading code does not seem to need any changes at all.

Issue 2: all history data is recorded into a single file.

Again, this has worked well historically. In fact, until not so long ago, it was the only sane way to record 
history data because operating systems could not efficiently write data into multiple files at the same 
time. Insifficient data buffering, suboptimal storage allocation strategies - all leading to bad 
performance. Latest Linux kernels have largely resolved all such issues.

The present problem arises when recording large amounts of history data (say 100 variables) and then 
making a history plot of 1 variable. Because data for the one variable of interest is spread across the 
whole file, effectively, the whole file has to be read into memory, data for 1 variable collected and data 
for the other 99 variables skipped.

In this case, a speed up by a factor of 100 could be obtained by recording (say) one variable per history 
file. (Yes, the history code does use "lseek", but the seek granularity of modern disks is very coarse and 
in my tests, reading the whole file (streaming) is almost faster than seeking through it).

One has to be very careful when looking at these numbers and running benchmarks. Modern computers 
with fast disks and large RAM performs very well no matter how history data is stored and organized. 
Performance problems surface only under the load when running the production system, when the 
disks are busy recording the main data stream and all RAM is consumed by user applications doing 
data analysis.

The obvious solution to this problem is to record each variable into a separate data file. This will 
require modifications to the history writing code in the mlogger and to the history reading code in 
mhttpd, mhist & co.

An extra challenge in this tast is to minimize changes to the existing code and to keep compatibility 
with the existing data files - new code should be able to read existing data files.

I propose to organize data into subdirectores:
history/equipmentNNN/variableVVV/YYMMDD.hst

This scheme does two good things for the history plotting in mhttpd:

1) note that mhttpd always plots one variable at a time, and the variables are addressed by equipment 
(int) and variable name (string) (plus the array index). In the proposed scheme, the code would know 
exactly which history file to open to get the data, no scanning of directories or seeking inside the 
history file.

2) when setting up mhttpd history plots, the code can easily see what equipment and variables exist 
and *ever existed*. The present code only examines the latest history file and cannot see variables that 
have been deleted (or not yet written into the existing file). For example, one cannot see variables that 
existed in the 2005 history but were removed (or renamed) in 2006. (Yes, it can be done by an expert 
using mhist to examine the 2005 history files and odbedit to manually setup the history plots).

Over the next few weeks, I will proceed with implementing these two improvements: (1) mlogger write 
history with per-variable granularity; (2) history file split into one-file-per-variable. If my initial 
assessment is correct and the changes indeed are small, contained, non-intrusive and compatible with 
existing history files, I will submit them for inclusion into mainline midas.

K.O.
  346   23 Feb 2007 Konstantin OlchanskiInfoRFC- support for writing to removable hard disk storage
At triumf, we are developing a system to use removable hard drives to store data collected by midas 
daq stations. The basic idea is to replace storage on 300 GB DLT tapes with storage on removable 
esata, usb2 or firewire 750 GB hard drives.

To minimize culture shock, we stay as close as possible to the "tape" paradigm. Two removable disks 
are used in tandem. Data is written to the first removable disk until it is full. Then midas automatically 
switches to the second disk and asks the operator to replace the full disk with a blank disk. Similar to 
handling tapes, the operator takes the full disk and stores it on the shelf (offline); takes a blank disk 
and connects it to the computer. To read data from one of the disks, the operator takes the disk from 
the shelf and connects it to the daq computer or to some other computer equipped with a compatible 
removable storage bay. The full data disks are mounted read-only to prevent accidental data 
modifications.

Two pieces of software are needed to implement this system:

1) midas support for switching to alternate output disks as they become full. Data could be written to 
the removable disk directly by the mlogger (no extra data copy on local disks) or by the lazylogger 
(mlogger writes the data to the local disk, then the lazylogger copies it to the removable disk). Writing 
directly to the removable disk is more efficient as it avoids the one extra data copy operation by the 
lazylogger.

2) a user interface utility for mounting and dismounting removable disks. Handling of removable disks 
cannot be fully automatic: before unplugging a removable disk, the user has to inform the system; after 
connecting a removable disk, the user has to tell the system to mount it read-only (for existing data), 
read-write (to add more data) or to initialize a blank disk (fdisk+mkfs). (Also, some SATA interfaces do 
not implement automatic hot-plug: they have to be manually told "please look for new disks").

We are presently evaluating various internal SATA hot-plug enclosures. We evaluated external eSATA 
and USB2 enclosures and decided not to use them: while the performance is adequate, presence of 
extra bulky components (eSATA and USB cables, non-standardized power bricks) and the extra cost of 
eSATA and USB hard drive enclosures makes them unattractive.

I am open to suggestions and comments. I am most interested in hearing which data path (mlogger or 
the lazylogger) would be most useful for other users.

K.O.
  345   17 Feb 2007 Konstantin OlchanskiBug Reportsegmentation violation of analyzer on a x86_64
> Yes right, Problem of a segmentation violation is solved with this patch. Now it works
> fine on x86_64.

Right. I confirm this. I have this exact same fix in my stand-alone copy of the midas
histogram server, and should commit it to MIDAS CVS as well.

K.O.
  344   15 Feb 2007 Ryu SawadaInfoLatest FC5 Compilation attempt
On February 13, 2007, gcc 4.1.2 was released.
I checked this version, and it compiles midas successfully,

GCC 3                    - OK
GCC 4.0                  - OK
GCC 4.1.0 and 4.1.1      - Bad
GCC 4.1.2                - OK
GCC 4.2                  - This is not released. Development version of GCC 4.2 is OK
  343   11 Feb 2007 Konstantin OlchanskiInfosvn and "make indent" trashed my svn checkout tree...
Fuming, fuming, fuming.

The combination of "make indent" and "svn update" completely trashed my work copy of midas. Half of 
the files now show as status "M", half as status "C" ("in conflict"), even those I never edited myself (e.g. 
mscb firmware files).

I think what happened as that once I ran "make indent", the indent program did things to the source 
files (changed indentation, added spaces in "foo(a,b,c); --> foo(a, b, c);" etc, so now svn thinks that I 
edited the files and they are in conflict with later modifications.

I suggest that nobody ever ever ever should use "make indent", and if they do, they should better 
commit their "changes" made by indent very quickly, before their midas tree is trashed by the next "svn 
update".

And if they commit the changes made by "make indent", beware that "make indent" is not idempotent, 
running it multiple times, it keeps changing files (keeps moving some dox comments around).

Also beware of entering a tug-of-war with Stefan - at least on my machines, my "make indent" seems 
to produce different output from his.

Still fuming, even after some venting...
K.O.
  342   06 Feb 2007 Fedor IgnatovBug Reportsegmentation violation of analyzer on a x86_64
Yes right, Problem of a segmentation violation is solved with this patch. Now it works
fine on x86_64.

Fedor 

> Do I understand you right? With your patch it works even on 64 bit, right? Or do you
> mean there is still a segmentation violation? Anyhow I committed your patch since the
> "int" is clearly incorrect.
> 
> - Stefan
  341   06 Feb 2007 Stefan RittBug Reportsegmentation violation of analyzer on a x86_64
> Hello,
> 
> When I  connect to analyzer on a x86_64 processor(with Roody),  
> a analyzer break with segmentation violation in the root_server_thread  function.
> Same code are working fine on a 32bit processor.
> As I found the problem are in exchanging of pointers between analyzer and client.
> Before to send a pointer, it is saved a pointer in int (size=4, instead of 8) at
> this place:
> Index: src/mana.c
> ===================================================================
> --- src/mana.c  (revision 3498)
> +++ src/mana.c  (working copy)
> @@ -5386,7 +5386,7 @@
> 
>              //write pointer
>              message->Reset(kMESS_ANY);
> -            int p = (POINTER_T) obj;
> +            POINTER_T p = (POINTER_T) obj;
>              *message << p;
>              sock->Send(*message);
> 
> 
> Sincerely Yours,
> Fedor Ignatov 

Do I understand you right? With your patch it works even on 64 bit, right? Or do you
mean there is still a segmentation violation? Anyhow I committed your patch since the
"int" is clearly incorrect.

- Stefan
  340   06 Feb 2007 Stefan RittBug FixProblem solved by Re-define _syscall0(...)

Exaos Lee wrote:
Maybe it's not the perfect way, but it works. Smile


I changed it to:
#ifdef OS_UNIX

   return syscall(SYS_gettid);

#endif                          /* OS_UNIX */
[/code1]

without any #define.

Does this work for you?

- Stefan
  339   06 Feb 2007 Stefan RittBug Reportwrong version in include/midas.h?
> The present .../include/midas.h contains
> [alpha@laddvme06 ~/online]$ grep 1.9.5 /home/alpha/packages/midas/include/*
> /home/alpha/packages/midas/include/midas.h:#define MIDAS_VERSION "1.9.5"
> 
> All MIDAS utilities (odbedit ver) presently report version 1.9.5, even for svn
> trunk, and this may confuse people as to what version of midas they are using,
> and may complicate reporting of bugs.
> 
> Perhaps the trunk version should say something like "svn-22233344" (the svn
> revision number)? The present "1.9.5" is wrong...

Fully agree. I added a svn_revision string into midas.h, which gets reported now
by "odbedit ver". Unfortunately this reflects only changes in midas.c. If one
changes odb.c for example, the svn revision in midas.c does not get modified by
the SVN system. In addition I changed the present version 1.9.5 to 2.0.0. I made
the tar and zip files. After some internal testing, it will be announced
officially in a few days.
  338   05 Feb 2007 Konstantin OlchanskiBug Reportwrong version in include/midas.h?
The present .../include/midas.h contains
[alpha@laddvme06 ~/online]$ grep 1.9.5 /home/alpha/packages/midas/include/*
/home/alpha/packages/midas/include/midas.h:#define MIDAS_VERSION "1.9.5"

All MIDAS utilities (odbedit ver) presently report version 1.9.5, even for svn
trunk, and this may confuse people as to what version of midas they are using,
and may complicate reporting of bugs.

Perhaps the trunk version should say something like "svn-22233344" (the svn
revision number)? The present "1.9.5" is wrong...

K.O.
  337   05 Feb 2007 Fedor IgnatovBug Reportsegmentation violation of analyzer on a x86_64
Hello,

When I  connect to analyzer on a x86_64 processor(with Roody),  
a analyzer break with segmentation violation in the root_server_thread  function.
Same code are working fine on a 32bit processor.
As I found the problem are in exchanging of pointers between analyzer and client.
Before to send a pointer, it is saved a pointer in int (size=4, instead of 8) at
this place:
Index: src/mana.c
===================================================================
--- src/mana.c  (revision 3498)
+++ src/mana.c  (working copy)
@@ -5386,7 +5386,7 @@

             //write pointer
             message->Reset(kMESS_ANY);
-            int p = (POINTER_T) obj;
+            POINTER_T p = (POINTER_T) obj;
             *message << p;
             sock->Send(*message);


Sincerely Yours,
Fedor Ignatov
  336   02 Feb 2007 Exaos LeeBug FixProblem solved by Re-define _syscall0(...)
OK, I searched and found that my kernel doesn't support "_syscall0" any more. So I patched the system.c as the following (from line 954):

#if defined(OS_DARWIN)
// blank
#elif defined(OS_LINUX)

#include <sys/syscall.h>
#include <unistd.h>
#undef _syscall0
#define _syscall0(type, name) \
  type name(void) \
  {\
    return syscall(__NR_##name); \
  }

_syscall0(pid_t,gettid)
#endif

My kernel version:
exaos@memes midas>$ uname -a
Linux memes 2.6.17-10-generic #2 SMP Tue Dec 5 22:28:26 UTC 2006 i686 GNU/Linux

Maybe it's not the perfect way, but it works. Smile
  335   02 Feb 2007 Exaos LeeBug ReportCompiling failed with SVN3562 under Ubuntu 6.10
I tried to solve the problem by adding a ";". It was wrong. In fact, the macro "_syscall0(..)" doesn't need the ";".
I searched and found that somebody said "the overall _syscall$magicnumber will disappear". I don't mind whether the "_syscall" disappear or not. I just want to compile the code and do my job. I deleted the additional ";" and recompiled. The error output is as the attachment [elog:335/1].
Attachment 1: err.log 
cc -c -g -O2 -Wall -Wuninitialized -Iinclude -Idrivers -I../mxml -Llinux/lib -DINCLUDE_FTPLIB   -D_LARGEFILE64_SOURCE -DHAVE_MYSQL -DHAVE_ROOT -pthread -I/opt/root/current/include -DOS_LINUX -fPIC -Wno-unused-function -o linux/lib/system.o src/system.c
src/system.c:958: error: expected declaration specifiers or ‘...’ before ‘gettid’
src/system.c:961: warning: return type defaults to ‘int’
src/system.c: In function ‘_syscall0’:
src/system.c:978: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1019: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1050: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1165: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1380: error: storage class specified for parameter ‘_daemon_flag’
src/system.c:1400: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1462: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1495: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1532: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1621: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1695: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1731: error: storage class specified for parameter ‘skip_mutex_handle’
src/system.c:1731: error: parameter ‘skip_mutex_handle’ is initialized
src/system.c:1760: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:1915: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2024: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2110: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2181: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2248: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2277: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2341: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2379: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2393: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2413: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2484: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2546: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2644: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2751: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2807: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:2871: error: storage class specified for parameter ‘SUSPEND_STRUCT’
src/system.c:2873: error: expected declaration specifiers before ‘SUSPEND_STRUCT’
src/system.c:2896: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3002: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3072: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3132: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3187: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3235: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3493: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3547: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3606: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3682: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3775: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:3901: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4080: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4167: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4210: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4297: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4356: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4430: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4497: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4558: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4615: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4667: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4723: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4779: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4826: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4887: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:4980: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5049: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5069: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5093: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5171: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5222: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5258: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5313: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5379: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5645: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5668: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5707: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5769: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5853: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
src/system.c:5883: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
In file included from /usr/include/math.h:71,
                 from src/system.c:5897:
/usr/include/bits/mathcalls.h:55: error: storage class specified for parameter ‘acos’
/usr/include/bits/mathcalls.h:55: error: storage class specified for parameter ‘__acos’
/usr/include/bits/mathcalls.h:57: error: storage class specified for parameter ‘asin’
/usr/include/bits/mathcalls.h:57: error: storage class specified for parameter ‘__asin’
/usr/include/bits/mathcalls.h:59: error: storage class specified for parameter ‘atan’
/usr/include/bits/mathcalls.h:59: error: storage class specified for parameter ‘__atan’
/usr/include/bits/mathcalls.h:61: error: storage class specified for parameter ‘atan2’
/usr/include/bits/mathcalls.h:61: error: storage class specified for parameter ‘__atan2’
/usr/include/bits/mathcalls.h:64: error: storage class specified for parameter ‘cos’
/usr/include/bits/mathcalls.h:64: error: storage class specified for parameter ‘__cos’
/usr/include/bits/mathcalls.h:66: error: storage class specified for parameter ‘sin’
/usr/include/bits/mathcalls.h:66: error: storage class specified for parameter ‘__sin’
/usr/include/bits/mathcalls.h:68: error: storage class specified for parameter ‘tan’
/usr/include/bits/mathcalls.h:68: error: storage class specified for parameter ‘__tan’
/usr/include/bits/mathcalls.h:73: error: storage class specified for parameter ‘cosh’
/usr/include/bits/mathcalls.h:73: error: storage class specified for parameter ‘__cosh’
/usr/include/bits/mathcalls.h:75: error: storage class specified for parameter ‘sinh’
/usr/include/bits/mathcalls.h:75: error: storage class specified for parameter ‘__sinh’
/usr/include/bits/mathcalls.h:77: error: storage class specified for parameter ‘tanh’
/usr/include/bits/mathcalls.h:77: error: storage class specified for parameter ‘__tanh’
/usr/include/bits/mathcalls.h:89: error: storage class specified for parameter ‘acosh’
/usr/include/bits/mathcalls.h:89: error: storage class specified for parameter ‘__acosh’
/usr/include/bits/mathcalls.h:91: error: storage class specified for parameter ‘asinh’
/usr/include/bits/mathcalls.h:91: error: storage class specified for parameter ‘__asinh’
/usr/include/bits/mathcalls.h:93: error: storage class specified for parameter ‘atanh’
/usr/include/bits/mathcalls.h:93: error: storage class specified for parameter ‘__atanh’
/usr/include/bits/mathcalls.h:101: error: storage class specified for parameter ‘exp’
/usr/include/bits/mathcalls.h:101: error: storage class specified for parameter ‘__exp’
/usr/include/bits/mathcalls.h:104: error: storage class specified for parameter ‘frexp’
/usr/include/bits/mathcalls.h:104: error: storage class specified for parameter ‘__frexp’
/usr/include/bits/mathcalls.h:107: error: storage class specified for parameter ‘ldexp’
/usr/include/bits/mathcalls.h:107: error: storage class specified for parameter ‘__ldexp’
/usr/include/bits/mathcalls.h:110: error: storage class specified for parameter ‘log’
/usr/include/bits/mathcalls.h:110: error: storage class specified for parameter ‘__log’
/usr/include/bits/mathcalls.h:113: error: storage class specified for parameter ‘log10’
/usr/include/bits/mathcalls.h:113: error: storage class specified for parameter ‘__log10’
/usr/include/bits/mathcalls.h:116: error: storage class specified for parameter ‘modf’
/usr/include/bits/mathcalls.h:116: error: storage class specified for parameter ‘__modf’
/usr/include/bits/mathcalls.h:129: error: storage class specified for parameter ‘expm1’
/usr/include/bits/mathcalls.h:129: error: storage class specified for parameter ‘__expm1’
/usr/include/bits/mathcalls.h:132: error: storage class specified for parameter ‘log1p’
/usr/include/bits/mathcalls.h:132: error: storage class specified for parameter ‘__log1p’
/usr/include/bits/mathcalls.h:135: error: storage class specified for parameter ‘logb’
/usr/include/bits/mathcalls.h:135: error: storage class specified for parameter ‘__logb’
/usr/include/bits/mathcalls.h:154: error: storage class specified for parameter ‘pow’
/usr/include/bits/mathcalls.h:154: error: storage class specified for parameter ‘__pow’
/usr/include/bits/mathcalls.h:157: error: storage class specified for parameter ‘sqrt’
/usr/include/bits/mathcalls.h:157: error: storage class specified for parameter ‘__sqrt’
/usr/include/bits/mathcalls.h:163: error: storage class specified for parameter ‘hypot’
/usr/include/bits/mathcalls.h:163: error: storage class specified for parameter ‘__hypot’
/usr/include/bits/mathcalls.h:170: error: storage class specified for parameter ‘cbrt’
/usr/include/bits/mathcalls.h:170: error: storage class specified for parameter ‘__cbrt’
/usr/include/bits/mathcalls.h:179: error: storage class specified for parameter ‘ceil’
/usr/include/bits/mathcalls.h:179: error: storage class specified for parameter ‘__ceil’
/usr/include/bits/mathcalls.h:182: error: storage class specified for parameter ‘fabs’
/usr/include/bits/mathcalls.h:182: error: storage class specified for parameter ‘__fabs’
/usr/include/bits/mathcalls.h:185: error: storage class specified for parameter ‘floor’
/usr/include/bits/mathcalls.h:185: error: storage class specified for parameter ‘__floor’
/usr/include/bits/mathcalls.h:188: error: storage class specified for parameter ‘fmod’
/usr/include/bits/mathcalls.h:188: error: storage class specified for parameter ‘__fmod’
/usr/include/bits/mathcalls.h:193: error: storage class specified for parameter ‘__isinf’
/usr/include/bits/mathcalls.h:196: error: storage class specified for parameter ‘__finite’
/usr/include/bits/mathcalls.h:202: error: storage class specified for parameter ‘isinf’
/usr/include/bits/mathcalls.h:205: error: storage class specified for parameter ‘finite’
/usr/include/bits/mathcalls.h:208: error: storage class specified for parameter ‘drem’
/usr/include/bits/mathcalls.h:208: error: storage class specified for parameter ‘__drem’
/usr/include/bits/mathcalls.h:212: error: storage class specified for parameter ‘significand’
/usr/include/bits/mathcalls.h:212: error: storage class specified for parameter ‘__significand’
/usr/include/bits/mathcalls.h:218: error: storage class specified for parameter ‘copysign’
/usr/include/bits/mathcalls.h:218: error: storage class specified for parameter ‘__copysign’
/usr/include/bits/mathcalls.h:231: error: storage class specified for parameter ‘__isnan’
/usr/include/bits/mathcalls.h:235: error: storage class specified for parameter ‘isnan’
/usr/include/bits/mathcalls.h:238: error: storage class specified for parameter ‘j0’
/usr/include/bits/mathcalls.h:238: error: storage class specified for parameter ‘__j0’
/usr/include/bits/mathcalls.h:239: error: storage class specified for parameter ‘j1’
/usr/include/bits/mathcalls.h:239: error: storage class specified for parameter ‘__j1’
/usr/include/bits/mathcalls.h:240: error: storage class specified for parameter ‘jn’
/usr/include/bits/mathcalls.h:240: error: storage class specified for parameter ‘__jn’
/usr/include/bits/mathcalls.h:241: error: storage class specified for parameter ‘y0’
/usr/include/bits/mathcalls.h:241: error: storage class specified for parameter ‘__y0’
/usr/include/bits/mathcalls.h:242: error: storage class specified for parameter ‘y1’
/usr/include/bits/mathcalls.h:242: error: storage class specified for parameter ‘__y1’
/usr/include/bits/mathcalls.h:243: error: storage class specified for parameter ‘yn’
/usr/include/bits/mathcalls.h:243: error: storage class specified for parameter ‘__yn’
/usr/include/bits/mathcalls.h:250: error: storage class specified for parameter ‘erf’
/usr/include/bits/mathcalls.h:250: error: storage class specified for parameter ‘__erf’
/usr/include/bits/mathcalls.h:251: error: storage class specified for parameter ‘erfc’
/usr/include/bits/mathcalls.h:251: error: storage class specified for parameter ‘__erfc’
/usr/include/bits/mathcalls.h:252: error: storage class specified for parameter ‘lgamma’
/usr/include/bits/mathcalls.h:252: error: storage class specified for parameter ‘__lgamma’
/usr/include/bits/mathcalls.h:265: error: storage class specified for parameter ‘gamma’
/usr/include/bits/mathcalls.h:265: error: storage class specified for parameter ‘__gamma’
/usr/include/bits/mathcalls.h:272: error: storage class specified for parameter ‘lgamma_r’
/usr/include/bits/mathcalls.h:272: error: storage class specified for parameter ‘__lgamma_r’
/usr/include/bits/mathcalls.h:280: error: storage class specified for parameter ‘rint’
/usr/include/bits/mathcalls.h:280: error: storage class specified for parameter ‘__rint’
/usr/include/bits/mathcalls.h:283: error: storage class specified for parameter ‘nextafter’
/usr/include/bits/mathcalls.h:283: error: storage class specified for parameter ‘__nextafter’
/usr/include/bits/mathcalls.h:289: error: storage class specified for parameter ‘remainder’
/usr/include/bits/mathcalls.h:289: error: storage class specified for parameter ‘__remainder’
/usr/include/bits/mathcalls.h:293: error: storage class specified for parameter ‘scalbn’
/usr/include/bits/mathcalls.h:293: error: storage class specified for parameter ‘__scalbn’
/usr/include/bits/mathcalls.h:297: error: storage class specified for parameter ‘ilogb’
/usr/include/bits/mathcalls.h:297: error: storage class specified for parameter ‘__ilogb’
/usr/include/bits/mathcalls.h:364: error: storage class specified for parameter ‘scalb’
/usr/include/bits/mathcalls.h:364: error: storage class specified for parameter ‘__scalb’
In file included from /usr/include/math.h:94,
                 from src/system.c:5897:
/usr/include/bits/mathcalls.h:55: error: storage class specified for parameter ‘acosf’
/usr/include/bits/mathcalls.h:55: error: storage class specified for parameter ‘__acosf’
/usr/include/bits/mathcalls.h:57: error: storage class specified for parameter ‘asinf’
/usr/include/bits/mathcalls.h:57: error: storage class specified for parameter ‘__asinf’
/usr/include/bits/mathcalls.h:59: error: storage class specified for parameter ‘atanf’
/usr/include/bits/mathcalls.h:59: error: storage class specified for parameter ‘__atanf’
/usr/include/bits/mathcalls.h:61: error: storage class specified for parameter ‘atan2f’
/usr/include/bits/mathcalls.h:61: error: storage class specified for parameter ‘__atan2f’
/usr/include/bits/mathcalls.h:64: error: storage class specified for parameter ‘cosf’
/usr/include/bits/mathcalls.h:64: error: storage class specified for parameter ‘__cosf’
/usr/include/bits/mathcalls.h:66: error: storage class specified for parameter ‘sinf’
/usr/include/bits/mathcalls.h:66: error: storage class specified for parameter ‘__sinf’
/usr/include/bits/mathcalls.h:68: error: storage class specified for parameter ‘tanf’
/usr/include/bits/mathcalls.h:68: error: storage class specified for parameter ‘__tanf’
/usr/include/bits/mathcalls.h:73: error: storage class specified for parameter ‘coshf’
/usr/include/bits/mathcalls.h:73: error: storage class specified for parameter ‘__coshf’
/usr/include/bits/mathcalls.h:75: error: storage class specified for parameter ‘sinhf’
/usr/include/bits/mathcalls.h:75: error: storage class specified for parameter ‘__sinhf’
/usr/include/bits/mathcalls.h:77: error: storage class specified for parameter ‘tanhf’
/usr/include/bits/mathcalls.h:77: error: storage class specified for parameter ‘__tanhf’
/usr/include/bits/mathcalls.h:89: error: storage class specified for parameter ‘acoshf’
/usr/include/bits/mathcalls.h:89: error: storage class specified for parameter ‘__acoshf’
/usr/include/bits/mathcalls.h:91: error: storage class specified for parameter ‘asinhf’
/usr/include/bits/mathcalls.h:91: error: storage class specified for parameter ‘__asinhf’
/usr/include/bits/mathcalls.h:93: error: storage class specified for parameter ‘atanhf’
/usr/include/bits/mathcalls.h:93: error: storage class specified for parameter ‘__atanhf’
/usr/include/bits/mathcalls.h:101: error: storage class specified for parameter ‘expf’
/usr/include/bits/mathcalls.h:101: error: storage class specified for parameter ‘__expf’
/usr/include/bits/mathcalls.h:104: error: storage class specified for parameter ‘frexpf’
/usr/include/bits/mathcalls.h:104: error: storage class specified for parameter ‘__frexpf’
/usr/include/bits/mathcalls.h:107: error: storage class specified for parameter ‘ldexpf’
/usr/include/bits/mathcalls.h:107: error: storage class specified for parameter ‘__ldexpf’
/usr/include/bits/mathcalls.h:110: error: storage class specified for parameter ‘logf’
/usr/include/bits/mathcalls.h:110: error: storage class specified for parameter ‘__logf’
/usr/include/bits/mathcalls.h:113: error: storage class specified for parameter ‘log10f’
/usr/include/bits/mathcalls.h:113: error: storage class specified for parameter ‘__log10f’
/usr/include/bits/mathcalls.h:116: error: storage class specified for parameter ‘modff’
/usr/include/bits/mathcalls.h:116: error: storage class specified for parameter ‘__modff’
/usr/include/bits/mathcalls.h:129: error: storage class specified for parameter ‘expm1f’
/usr/include/bits/mathcalls.h:129: error: storage class specified for parameter ‘__expm1f’
/usr/include/bits/mathcalls.h:132: error: storage class specified for parameter ‘log1pf’
/usr/include/bits/mathcalls.h:132: error: storage class specified for parameter ‘__log1pf’
/usr/include/bits/mathcalls.h:135: error: storage class specified for parameter ‘logbf’
/usr/include/bits/mathcalls.h:135: error: storage class specified for parameter ‘__logbf’
/usr/include/bits/mathcalls.h:154: error: storage class specified for parameter ‘powf’
/usr/include/bits/mathcalls.h:154: error: storage class specified for parameter ‘__powf’
/usr/include/bits/mathcalls.h:157: error: storage class specified for parameter ‘sqrtf’
/usr/include/bits/mathcalls.h:157: error: storage class specified for parameter ‘__sqrtf’
/usr/include/bits/mathcalls.h:163: error: storage class specified for parameter ‘hypotf’
/usr/include/bits/mathcalls.h:163: error: storage class specified for parameter ‘__hypotf’
/usr/include/bits/mathcalls.h:170: error: storage class specified for parameter ‘cbrtf’
/usr/include/bits/mathcalls.h:170: error: storage class specified for parameter ‘__cbrtf’
/usr/include/bits/mathcalls.h:179: error: storage class specified for parameter ‘ceilf’
/usr/include/bits/mathcalls.h:179: error: storage class specified for parameter ‘__ceilf’
/usr/include/bits/mathcalls.h:182: error: storage class specified for parameter ‘fabsf’
/usr/include/bits/mathcalls.h:182: error: storage class specified for parameter ‘__fabsf’
/usr/include/bits/mathcalls.h:185: error: storage class specified for parameter ‘floorf’
/usr/include/bits/mathcalls.h:185: error: storage class specified for parameter ‘__floorf’
/usr/include/bits/mathcalls.h:188: error: storage class specified for parameter ‘fmodf’
/usr/include/bits/mathcalls.h:188: error: storage class specified for parameter ‘__fmodf’
/usr/include/bits/mathcalls.h:193: error: storage class specified for parameter ‘__isinff’
/usr/include/bits/mathcalls.h:196: error: storage class specified for parameter ‘__finitef’
/usr/include/bits/mathcalls.h:202: error: storage class specified for parameter ‘isinff’
/usr/include/bits/mathcalls.h:205: error: storage class specified for parameter ‘finitef’
/usr/include/bits/mathcalls.h:208: error: storage class specified for parameter ‘dremf’
/usr/include/bits/mathcalls.h:208: error: storage class specified for parameter ‘__dremf’
/usr/include/bits/mathcalls.h:212: error: storage class specified for parameter ‘significandf’
/usr/include/bits/mathcalls.h:212: error: storage class specified for parameter ‘__significandf’
/usr/include/bits/mathcalls.h:218: error: storage class specified for parameter ‘copysignf’
/usr/include/bits/mathcalls.h:218: error: storage class specified for parameter ‘__copysignf’
/usr/include/bits/mathcalls.h:231: error: storage class specified for parameter ‘__isnanf’
/usr/include/bits/mathcalls.h:235: error: storage class specified for parameter ‘isnanf’
/usr/include/bits/mathcalls.h:238: error: storage class specified for parameter ‘j0f’
/usr/include/bits/mathcalls.h:238: error: storage class specified for parameter ‘__j0f’
/usr/include/bits/mathcalls.h:239: error: storage class specified for parameter ‘j1f’
/usr/include/bits/mathcalls.h:239: error: storage class specified for parameter ‘__j1f’
/usr/include/bits/mathcalls.h:240: error: storage class specified for parameter ‘jnf’
/usr/include/bits/mathcalls.h:240: error: storage class specified for parameter ‘__jnf’
/usr/include/bits/mathcalls.h:241: error: storage class specified for parameter ‘y0f’
/usr/include/bits/mathcalls.h:241: error: storage class specified for parameter ‘__y0f’
/usr/include/bits/mathcalls.h:242: error: storage class specified for parameter ‘y1f’
/usr/include/bits/mathcalls.h:242: error: storage class specified for parameter ‘__y1f’
/usr/include/bits/mathcalls.h:243: error: storage class specified for parameter ‘ynf’
/usr/include/bits/mathcalls.h:243: error: storage class specified for parameter ‘__ynf’
/usr/include/bits/mathcalls.h:250: error: storage class specified for parameter ‘erff’
/usr/include/bits/mathcalls.h:250: error: storage class specified for parameter ‘__erff’
/usr/include/bits/mathcalls.h:251: error: storage class specified for parameter ‘erfcf’
/usr/include/bits/mathcalls.h:251: error: storage class specified for parameter ‘__erfcf’
/usr/include/bits/mathcalls.h:252: error: storage class specified for parameter ‘lgammaf’
/usr/include/bits/mathcalls.h:252: error: storage class specified for parameter ‘__lgammaf’
/usr/include/bits/mathcalls.h:265: error: storage class specified for parameter ‘gammaf’
/usr/include/bits/mathcalls.h:265: error: storage class specified for parameter ‘__gammaf’
/usr/include/bits/mathcalls.h:272: error: storage class specified for parameter ‘lgammaf_r’
/usr/include/bits/mathcalls.h:272: error: storage class specified for parameter ‘__lgammaf_r’
/usr/include/bits/mathcalls.h:280: error: storage class specified for parameter ‘rintf’
/usr/include/bits/mathcalls.h:280: error: storage class specified for parameter ‘__rintf’
/usr/include/bits/mathcalls.h:283: error: storage class specified for parameter ‘nextafterf’
/usr/include/bits/mathcalls.h:283: error: storage class specified for parameter ‘__nextafterf’
/usr/include/bits/mathcalls.h:289: error: storage class specified for parameter ‘remainderf’
/usr/include/bits/mathcalls.h:289: error: storage class specified for parameter ‘__remainderf’
/usr/include/bits/mathcalls.h:293: error: storage class specified for parameter ‘scalbnf’
/usr/include/bits/mathcalls.h:293: error: storage class specified for parameter ‘__scalbnf’
/usr/include/bits/mathcalls.h:297: error: storage class specified for parameter ‘ilogbf’
/usr/include/bits/mathcalls.h:297: error: storage class specified for parameter ‘__ilogbf’
/usr/include/bits/mathcalls.h:364: error: storage class specified for parameter ‘scalbf’
/usr/include/bits/mathcalls.h:364: error: storage class specified for parameter ‘__scalbf’
In file included from /usr/include/math.h:141,
                 from src/system.c:5897:
/usr/include/bits/mathcalls.h:55: error: storage class specified for parameter ‘acosl’
/usr/include/bits/mathcalls.h:55: error: storage class specified for parameter ‘__acosl’
/usr/include/bits/mathcalls.h:57: error: storage class specified for parameter ‘asinl’
/usr/include/bits/mathcalls.h:57: error: storage class specified for parameter ‘__asinl’
/usr/include/bits/mathcalls.h:59: error: storage class specified for parameter ‘atanl’
/usr/include/bits/mathcalls.h:59: error: storage class specified for parameter ‘__atanl’
... 133 more lines ...
  334   02 Feb 2007 Exaos LeeBug ReportCompiling failed with SVN3562 under Ubuntu 6.10
The error log is as the following:
cc -c -g -O2 -Wall -Wuninitialized -Iinclude -Idrivers -I../mxml -Llinux/lib -DINCLUDE_FTPLIB   -D_LARGEFILE64_SOURCE -DHAVE_MYSQL -DHAVE_ROOT -pthread -I/opt/root/current/include -DOS_LINUX -fPIC -Wno-unused-function -o linux/lib/system.o src/system.c
src/system.c:958: error: expected declaration specifiers or ‘...’ before ‘gettid’
src/system.c:958: warning: data definition has no type or storage class
src/system.c:958: warning: type defaults to ‘int’ in declaration of ‘_syscall0’
src/system.c: In function ‘ss_gettid’:
src/system.c:1005: warning: implicit declaration of function ‘gettid’
src/system.c: In function ‘ss_suspend_init_ipc’:
src/system.c:2948: warning: pointer targets in passing argument 3 of ‘getsockname’ differ in signedness
src/system.c: In function ‘ss_suspend’:
src/system.c:3414: warning: pointer targets in passing argument 6 of ‘recvfrom’ differ in signedness
src/system.c:3441: warning: pointer targets in passing argument 6 of ‘recvfrom’ differ in signedness
make: *** [linux/lib/system.o] &#38169;&#35823; 1

The error might be here:
void ss_force_single_thread()
{
   _single_thread = TRUE;
}

#if defined(OS_DARWIN)
// blank
#elif defined(OS_LINUX)
_syscall0(pid_t,gettid);
#endif

INT ss_gettid(void)

I have no idea about the usage of _syscall0(...).
  333   30 Jan 2007 Stefan RittBug ReportLarge files under Windows XP
Hello,

We have problems analyzing large files under Windows XP. For small file sizes,
everything is ok. We have events of 2.8 MB each, and we can read ~30 events per
second. But if the file gets larger than typically 600-800 MB, then access
becomes very slow, about 1 event per second. This is not the case under Linux,
where it stays at 30 Hz (~90 MB/sec). 

Looking at the low level file access, it is obvious that this has nothing to do
with midas, this problem can be reproduced with a simple program reading chunks
of 3MB from a 1GB file. The Windows XP file system is NTFS, default formatting.
Does anyone else have observed a similar problem or maybe even have some
suggestions? Unfortunately many people here want to analyze midas data under
Windows...

Stefan Ritt
  332   26 Jan 2007 Carl MetelkoForumFront end electronics broadcast data over ethernet, can midas read this in
Hi,
   the system I'm building will have data read into the frontend nodes
via ethernet (optic). Is this possible?>
  331   26 Jan 2007 Carl MetelkoForumMidas on a x86_64
I upgraded from 1.9.5 to the latest on SVN an it works fine
  329   24 Jan 2007 Stefan RittBug Reportbuffer bugs
I tried again and could not reproduce the problem. Last time I was probably confused by some old mserver.exe executable I had lying around. I updated to the most recent version (3516) and did a C:\midas> nmake -f makefile.nt. Last time I was also confused about the low rate, but that was caused by a mserver.exe executable which was not compiled with optimization. For small event sizes (such as 10 bytes) there is a big difference between optimized and non-optimized code. So I got:


First Console wrote:
ID of event to produce: 1
Host to connect: localhost
Event size: 10
Level:   0.0 %, Rate: 0.46 MB/sec
flush
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.42 MB/sec
Level:   0.0 %, Rate: 0.42 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.44 MB/sec
Level:   0.0 %, Rate: 0.42 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
flush
Level:   0.0 %, Rate: 0.44 MB/sec
Level:   0.0 %, Rate: 0.44 MB/sec
Level:   0.0 %, Rate: 0.40 MB/sec
Level:   0.0 %, Rate: 0.42 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.44 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
Level:   0.0 %, Rate: 0.43 MB/sec
flush


and


Second Console wrote:
C:\midas\NT\bin>.\consume
ID of event to request: 1
Host to connect:
Get all events (0/1): 1
Receive via callback ([y]/n):
[consume.c:73:process_event] Serial number mismatch: Ser: 1169666, OldSer: 0, ID
: 1, size: 10
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.42 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.42 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   2.4 %, Rate: 0.35 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.50 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.41 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.40 MB/sec, ser mismatches: 1
Received break. Aborting...


Actually sending remote and receiving local is a very common thing. Most experiments use that. They have a remote frontend, and the logger and analyzer work locally. If that would not work, all these experiments would have a problem. So I only can encourage you to try again, make sure to update and recompile the executables. Maybe delete any old *.SHM file. Maybe try on another PC or under Linux.
  328   23 Jan 2007 Stefan RittBug Reportbuffer bugs

Denis Bilenko wrote:
1 & 3 - thanks for the fix and the explanation, as for 2 - I've tried consume and produce
and still has a problem


Acknowledged. I could reproduce it with the information you supplied, thank you very much. Also the data rate is slower than what I expect. I will investigate and fix this, but it could take some time.
  327   23 Jan 2007 Denis BilenkoBug Reportbuffer bugs
1 & 3 - thanks for the fix and the explanation, as for 2 - I've tried consume and produce
and still has a problem:

Config: GET_ALL, event id = 1, event size = 10, Receive via callback,
OS = Windows XP SP2
I restart mserver manually from command-line every time (not using system service).
I start produce first, then I start consume.
In two cases of four starting 'consume' causes 'produce' to exit immediatelly.
Guess which two Smile

both local or both remote - works (i.e. non-zero rates in both consoles)
produce local, consume via rpc and vice versa - 'produce' exits with error

1. produce via rpc, consume locally

first console:
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin>produce.exe
ID of event to produce: 1
Host to connect: 127.0.0.1
Event size: 10
Level:   0.0 %, Rate: 0.64 MB/sec
flush
Level:   0.0 %, Rate: 0.64 MB/sec
Level:   0.0 %, Rate: 0.63 MB/sec
Level:   0.0 %, Rate: 0.64 MB/sec
Level:   0.0 %, Rate: 0.61 MB/sec
Level:   0.0 %, Rate: 0.62 MB/sec
Level:   0.0 %, Rate: 0.62 MB/sec
Level:   0.0 %, Rate: 0.64 MB/sec
Level:   0.0 %, Rate: 0.63 MB/sec
Level:   0.0 %, Rate: 0.63 MB/sec
Level:   0.0 %, Rate: 0.64 MB/sec
flush
Level:   0.0 %, Rate: 0.62 MB/sec

## Now I've started consume in the other console ##

[system.c:3570:send_tcp] send(socket=1900,size=8136) returned -1, errno: 0 (No error)
send_tcp() returned -1
[midas.c:9669:rpc_send_event] send_tcp() failed
rpc_send_event returned error 503, event_size 10
second console:
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin>consume.exe
ID of event to request: 1
Host to connect:
Get all events (0/1): 1
Receive via callback ([y]/n):
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 0
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 0
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 0
Received break. Aborting...
mserver's output:
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin\mserver.exe started interactively
[midas.c:2315:bm_validate_client_index] Invalid client index 0 in buffer 'SYSTEM'.
Client name 'Power Consumer', pid 1964 should be 3216
2. produce locally, consume via rpc
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin>produce.exe
ID of event to produce: 1
Host to connect:
Event size: 10
Client 'Producer' (PID 2584) on 'ODB' removed by cm_watchdog (idle 144.1s,TO 10s)
Level:   0.0 %, Rate: 3.20 MB/sec
flush
Level:   0.0 %, Rate: 3.20 MB/sec
Level:   0.0 %, Rate: 3.11 MB/sec
Level:   0.0 %, Rate: 3.13 MB/sec
Level:   0.0 %, Rate: 3.06 MB/sec
Level:   0.0 %, Rate: 3.20 MB/sec
Level:   0.0 %, Rate: 2.96 MB/sec
Level:   0.0 %, Rate: 3.11 MB/sec
Level:   0.0 %, Rate: 3.18 MB/sec
Level:   0.0 %, Rate: 3.13 MB/sec
Level:   0.0 %, Rate: 3.17 MB/sec
flush
Level:   0.0 %, Rate: 3.19 MB/sec
Level:   0.0 %, Rate: 3.08 MB/sec
Level:   0.0 %, Rate: 3.06 MB/sec

## Now I've started consume ##

[midas.c:2315:bm_validate_client_index] Invalid client index 0 in buffer 'SYSTEM'. Client name '', pid 0 should be 760
Second console:
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin>consume.exe
ID of event to request: 1
Host to connect: 127.0.0.1
Get all events (0/1): 1
Receive via callback ([y]/n):
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 0
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 0
Received break. Aborting...
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 0
mserver haven't said anything.

3. Both remote (just for comparison)
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin>produce.exe
ID of event to produce: 1
Host to connect: 127.0.0.1
Event size: 10
Level:   0.0 %, Rate: 0.65 MB/sec
flush
Level:   0.0 %, Rate: 0.66 MB/sec
Level:   0.0 %, Rate: 0.65 MB/sec
Level:   0.0 %, Rate: 0.60 MB/sec
Level:   0.0 %, Rate: 0.64 MB/sec
Level:   0.0 %, Rate: 0.63 MB/sec
Level:   0.0 %, Rate: 0.61 MB/sec
Level:   0.0 %, Rate: 0.63 MB/sec
Level:   0.0 %, Rate: 0.65 MB/sec
Level:   0.0 %, Rate: 0.65 MB/sec
Level:   0.0 %, Rate: 0.67 MB/sec
flush
Level:   0.0 %, Rate: 0.66 MB/sec
Level:   0.0 %, Rate: 0.65 MB/sec
Level:   0.0 %, Rate: 0.65 MB/sec
Level:   0.0 %, Rate: 0.66 MB/sec
Level:   0.0 %, Rate: 0.66 MB/sec
Level:   0.0 %, Rate: 0.65 MB/sec
Level:   0.0 %, Rate: 0.66 MB/sec
Level:   0.0 %, Rate: 0.66 MB/sec
Level:   0.0 %, Rate: 0.66 MB/sec
Level:  66.8 %, Rate: 0.66 MB/sec
flush
Level:   0.0 %, Rate: 0.00 MB/sec
Level:  66.8 %, Rate: 0.31 MB/sec
Level:  57.2 %, Rate: 0.15 MB/sec
Level:  57.3 %, Rate: 0.14 MB/sec
Level:  57.3 %, Rate: 0.15 MB/sec
Level:  57.3 %, Rate: 0.14 MB/sec
Level:  57.3 %, Rate: 0.14 MB/sec
Level:  57.3 %, Rate: 0.14 MB/sec
Received break. Aborting...
Received 2nd break. Hard abort.
[midas.c:1581:] cm_disconnect_experiment not called at end of program
Second console:
D:\denis\cmd\midas\current\06jan21-export\midas\NT\bin>consume.exe
ID of event to request: 1
Host to connect: 127.0.0.1
Get all events (0/1): 1
Receive via callback ([y]/n):
[consume.c:73:process_event] Serial number mismatch: Ser: 1397076, OldSer: 0, ID: 1, size: 10
Level:  37.1 %, Rate: 0.00 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.15 MB/sec, ser mismatches: 1
Level:  95.4 %, Rate: 0.08 MB/sec, ser mismatches: 1
Level:  66.8 %, Rate: 0.14 MB/sec, ser mismatches: 1
Level:  66.8 %, Rate: 0.12 MB/sec, ser mismatches: 1
Level:  76.3 %, Rate: 0.12 MB/sec, ser mismatches: 1
Level:  95.4 %, Rate: 0.11 MB/sec, ser mismatches: 1
Level:  57.3 %, Rate: 0.15 MB/sec, ser mismatches: 1
Level:  66.8 %, Rate: 0.11 MB/sec, ser mismatches: 1
Level:  85.9 %, Rate: 0.11 MB/sec, ser mismatches: 1
Level:  95.5 %, Rate: 0.12 MB/sec, ser mismatches: 1
Level:  57.4 %, Rate: 0.15 MB/sec, ser mismatches: 1
Level:   9.7 %, Rate: 0.15 MB/sec, ser mismatches: 1
[Producer] [midas.c:1581:] cm_disconnect_experiment not called at end of program
Level:   0.0 %, Rate: 0.03 MB/sec, ser mismatches: 1
Level:   0.0 %, Rate: 0.00 MB/sec, ser mismatches: 1
Received break. Aborting...
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