 09 Nov 2021, Francesco Renga, Forum, Issue in data writing speed
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Dear all,
I've a frontend writing a quite big bunch of data into a MIDAS bank (16bit output from a 4MP photo camera).
I'm experiencing a writing speed problem that I don't understand. When the photo camera is triggered at a low rate (< 2 Hz)
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 10 Nov 2021, Stefan Ritt, Forum, Issue in data writing speed
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Midas uses various buffers (in the frontend, at the server side before the SYSTEM buffer, the SYSTEM buffer itself, on the
logger before writing to disk. All these buffers are in RAM and have fast access, so you can fill them pretty quickly. When
they are full, the logger writes to disk, which is slower. So I believe at 2 Hz your disk can keep up with your writing
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26 Jan 2022, Konstantin Olchanski, Forum, Issue in data writing speed
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Francesco, when you say "writing an event is slow", do you mean it in the frontend
or in the output data file?
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26 Jan 2022, Konstantin Olchanski, Forum, Issue in data writing speed
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> Francesco, when you say "writing an event is slow", do you mean it in the frontend
> or in the output data file?
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16 Dec 2020, Isaac Labrie Boulay, Forum, Issues building banks.
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Hi all,
I'm currently trying to build events through doing block transfers. The worry was
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16 Dec 2020, Konstantin Olchanski, Forum, Issues building banks.
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> I'm currently trying to build events through doing block transfers.
I am confused by your question. I assume you read a CAEN V792 ADC, but I do not know what VME master you
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16 Dec 2020, Isaac Labrie Boulay, Forum, Issues building banks.
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Thanks for the quick reply,
> > I'm currently trying to build events through doing block transfers.
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16 Dec 2020, Konstantin Olchanski, Forum, Issues building banks.
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> > > I'm currently trying to build events through doing block transfers.
> >
> > I am confused by your question. I assume you read a CAEN V792 ADC, but I do not know what VME master you
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16 Dec 2020, Isaac Labrie Boulay, Forum, Issues building banks.
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> > > > I'm currently trying to build events through doing block transfers.
> > >
> > > I am confused by your question. I assume you read a CAEN V792 ADC, but I do not know what VME master you
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16 Dec 2020, Stefan Ritt, Forum, Issues building banks.
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> This is very hard to do using the mfe.c frontend. (the main reason I wrote the TMFE C++ frontend class).
Actually that's not true. Just look at
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16 Dec 2020, Isaac Labrie Boulay, Forum, Issues building banks.
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> > This is very hard to do using the mfe.c frontend. (the main reason I wrote the TMFE C++ frontend class).
>
> Actually that's not true. Just look at
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02 Aug 2023, Caleb Marshall, Forum, Issues with Universe II Driver
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Hello,
At our lab we are currently in the process of migrating more of our systems over to Midas. However, all of our working systems are dependent
on SBCs with the Tsi-148 chips of which we only have a handful. In order to have some backups and spares for testing, we have been attempting to get Midas |
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02 Aug 2023, Konstantin Olchanski, Forum, Issues with Universe II Driver
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I maintain the tsi148 and the universe-II drivers. I confirm -KO6 is my latest
version, last updated for 32-bit Debian-11, and we still use it at TRIUMF.
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03 Aug 2023, Caleb Marshall, Forum, Issues with Universe II Driver
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Here is the output:
vmic_mmap: Mapped VME AM 0x0d addr 0x00000000 size 0x00ffffff at address 0x80a01000
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03 Aug 2023, Konstantin Olchanski, Forum, Issues with Universe II Driver
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> Here is the output:
>
> vmic_mmap: Mapped VME AM 0x0d addr 0x00000000 size 0x00ffffff at address 0x80a01000
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03 Aug 2023, Caleb Marshall, Forum, Issues with Universe II Driver
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I am looking into compiling the 32 bit midas.
In the meantime, here is the kernel info:
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04 Aug 2023, Caleb Marshall, Forum, Issues with Universe II Driver
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I can compile 32 bit midas. Unless I am interpreting the linking error, I don't
think I can use the driver as built.
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04 Aug 2023, Konstantin Olchanski, Forum, Issues with Universe II Driver
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> I can compile 32 bit midas. Unless I am interpreting the linking error, I don't
> think I can use the driver as built.
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19 Oct 2009, Exaos Lee, Forum, It' better to fix this warnings
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> There is no "type conversions". The compiler is whining about code like this:
>
> /* data type names */
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10 Nov 2009, Stefan Ritt, Forum, It' better to fix this warnings
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> This will cause "type conversion" warnings. I hope that "odbedit" can generate codes like this:
> [CODE]
> #define EXPCVADC_COMMON_STR(_name) const char *_name[] = {\
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