 04 Jun 2009, Stefan Ritt, Info, RPC.SHM gyration
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> Right now, MIDAS does not have an abstraction for "local multi-thread mutex" (i.e. pthread_mutex & co) and mostly uses global semaphores
> for this task (with interesting coding results, i.e. for multithreaded locking of ODB). Perhaps such an abstraction should be introduced?
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26 Jun 2009, Konstantin Olchanski, Info, mhttpd now uses mtransition
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> > > mhttpd function for starting and stopping runs now uses cm_transition(DETACH) which spawns an
> > > external helper program called mtransition to handle the transition sequencing.
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 10 Aug 2009, Konstantin Olchanski, Info, misc changes from PIENU and T2K
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FYI - committed the last changes from TRIUMF DAQ systems for PIENU and T2K/ND280 FGD and TPC
tests:
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10 Aug 2009, Konstantin Olchanski, Info, misc changes from PIENU and T2K
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> FYI - committed the last changes from TRIUMF DAQ systems for PIENU and T2K/ND280 FGD and TPC
> tests:
> svn rev 4541
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21 Sep 2009, Stefan Ritt, Info, New feature: Stop run after a certain time
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A new feature has been implemented in revision 4561 which allows runs with a
certain duration. To use this, one has to set the variaable
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22 Sep 2009, Stefan Ritt, Info, New feature: Stop run after a certain time
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> A new feature has been implemented in revision 4561 which allows runs with a
> certain duration. To use this, one has to set the variaable
>
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11 Oct 2009, Konstantin Olchanski, Info, SQL history documentation
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> Documentation for writing midas history data to SQL (mysql) is now documented in midas doxygen files
> (make dox; firefox doxfiles/html/index.html). The corresponding logger and mhttpd code has been
> committed for some time now and it is used in production environment by the t2k/nd280 slow controls
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20 Nov 2009, Konstantin Olchanski, Info, RPC.SHM gyration
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> When using remote midas clients with mserver, you may have noticed the zero-size .RPC.SHM files
> these clients create in the directory where you run them.
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01 Dec 2009, Stefan Ritt, Info, Redesign of status page links 
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The custom and alias links in the standard midas status page were shown as HTML
links so far. If there are many links with names having spaces in their names,
it's a bit hard to distinguish between them. Therefore, they are packed now into
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04 Dec 2009, Stefan Ritt, Info, Redesign of status page columns
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Since the column on the main midas status page with fraction of analyzed events is
barely used, I decided to drop it. Anyhow it does not make sense for all slow
control events. If this feature is required in some experiment, I propose to move it
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04 Dec 2009, Stefan Ritt, Info, Custom page showing ROOT analyzer output
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Many midas experiments work with ROOT based analyzers today. One problem there is that the graphical output of the root analyzer can only be seen through
the X server and not through the web. At the MEG experiment, we solved this problem in an elegant way: The ROOT analyzer runs in the background, using
a "virtual" X server called Xvfb. It plots its output (several panels) normally using this X server, then saves this panels every ten seconds into GIF |
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04 Dec 2009, Stefan Ritt, Info, New '/Experiment/Menu buttons'
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The mhttpd program shows some standard buttons in the top row for
starting/stopping runs, accessing the ODB, Alarms, etc. Since not all experiments
make use of all buttons, they have been customized. By default mhttpd creates
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12 Dec 2009, Stefan Ritt, Info, New MSCB page implementation
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A new page has been implemented in mhttpd. This allows web access to all devices from an [URL=http://midas.psi.ch/mscb]MSCB system[/URL] and their variables:
[IMG]elog:690/1[/IMG]
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04 Mar 2010, Konstantin Olchanski, Info, Notes on MIDAS Alarm system
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Notes on the implementation of the MIDAS alarm system.
Alarms are checked inside alarm.c::al_check(). This function is called by
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11 Mar 2010, Stefan Ritt, Info, New '/Experiment/Menu buttons'
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> The mhttpd program shows some standard buttons in the top row for
> starting/stopping runs, accessing the ODB, Alarms, etc. Since not all experiments
> make use of all buttons, they have been customized. By default mhttpd creates
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30 Jul 2010, Konstantin Olchanski, Info, macos 10.6 success
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As of svn rev 4794, midas builds, runs and should be fully usable on MacOS 10.6.4. Previous revisions did
not compile due to assorted Linuxisms and did not run because of a sizeof() problem in ss_gettid(). Also
one of the system header files (mtio.h?) present in MacOS 10.5 vanished from 10.6.
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04 Aug 2010, Konstantin Olchanski, Info, YBOS support now optional, disabled by default
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As of svn rev 4800, YBOS support was made optional, disabled by default. (But note that ybos.c is still used
by mdump). See HAVE_YBOS in the Makefile.
K.O. |
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31 Aug 2010, Konstantin Olchanski, Info, YBOS support now optional, disabled by default
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> As of svn rev 4800, YBOS support was made optional, disabled by default. (But note that ybos.c is still used
> by mdump). See HAVE_YBOS in the Makefile.
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31 Aug 2010, Konstantin Olchanski, Info, Experimental POSIX shared memory support
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As of svn rev 4807, src/system.c has an experimental implementation of POSIX shared memory. It is
similar to the already existing implementation of MMAP shared memory, but uses POSIX shm_open()
instead of directly mmapping the .xxx.SHM file.
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31 Aug 2010, Konstantin Olchanski, Info, macos 10.6 success
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> As of svn rev 4794, midas builds, runs and should be fully usable on MacOS 10.6.4. Previous revisions did
> not compile due to assorted Linuxisms and did not run because of a sizeof() problem in ss_gettid(). Also
> one of the system header files (mtio.h?) present in MacOS 10.5 vanished from 10.6.
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