 09 Dec 2020, Stefan Ritt, Forum, history and variables confusion
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First, the writing of banks is completely independent of the history system. Banks go to the log file only,
while the history is only linked to the "Variables" section in the ODB.
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10 Dec 2020, Frederik Wauters, Forum, history and variables confusion 
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I wanted to have a c++ style driver, e.g. a instance of a "PowerSupply" class. This was not compatible with the list of DEVICE_DRIVER structs, with needs
a C function entry point with variable arguments.
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11 Dec 2020, Frederik Wauters, Forum, history and variables confusion
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1. ok, so calling the same readout functions from different equipments is just a bad idea, my bad, no blame for Midas to write data from both bank to both
odb trees ...
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15 Dec 2020, Konstantin Olchanski, Forum, history and variables confusion
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I think you are facing several problems:
a) mlogger does not clearly explain what history names will be used for which entries
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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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08 Jan 2021, Stefan Ritt, Forum, history and variables confusion
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We kind of agreed to rewrite the slow control system in C++. Each device will have its own driver derived from a common base class implementing the general
communication. The reason we need a "system" and not only a "hand-written" driver is because we want:
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13 Jan 2021, Isaac Labrie Boulay, Forum, poll_event() is very slow.
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Hi all,
I'm currently trying to see if I can speed up polling in a frontend I'm testing.
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13 Jan 2021, Konstantin Olchanski, Forum, poll_event() is very slow.
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>
> I'm currently trying to see if I can speed up polling in a frontend I'm testing.
> Currently it seems like I can't get 'lam's to happen faster than 120 times/second.
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13 Jan 2021, Pierre-Andre Amaudruz, Forum, poll_event() is very slow.
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> Hi all,
>
> I'm currently trying to see if I can speed up polling in a frontend I'm testing. |
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13 Jan 2021, Stefan Ritt, Forum, poll_event() is very slow.
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Something must be wrong on your side. If you take the example frontend under
midas/examples/experiment/frontend.cxx
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14 Jan 2021, Pintaudi Giorgio, Forum, poll_event() is very slow.
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> Something must be wrong on your side. If you take the example frontend under
>
> midas/examples/experiment/frontend.cxx
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14 Jan 2021, Isaac Labrie Boulay, Forum, poll_event() is very slow.
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> Something must be wrong on your side. If you take the example frontend under
>
> midas/examples/experiment/frontend.cxx
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15 Jan 2021, Isaac Labrie Boulay, Forum, poll_event() is very slow.
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> >
> > I'm currently trying to see if I can speed up polling in a frontend I'm testing.
> > Currently it seems like I can't get 'lam's to happen faster than 120 times/second.
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08 Feb 2021, Konstantin Olchanski, Forum, poll_event() is very slow.
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> I should mention that I was using midas/examples/Triumf/c++/fevme.cxx
this is correct, the fevme frontend is written to do 100% CPU-busy polling.
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