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<p>Dear <span>Håkan</span>,</p>
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<p>thanks a lot for the explanation.</p>
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<p>If possible, I would like to add 'flush=immediatly' to the wish list. For them moment, we will work around this issue.</p>
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<p>Best greetings</p>
<p>Günter<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>Von:</b> subexp-daq <subexp-daq-bounces@lists.chalmers.se> im Auftrag von Håkan T Johansson <f96hajo@chalmers.se><br>
<b>Gesendet:</b> Donnerstag, 6. Juni 2024 18:22:22<br>
<b>An:</b> Discuss use of Nurdlib, TRLO II, drasi and UCESB.<br>
<b>Betreff:</b> Re: [subexp-daq] Question on DRASI</font>
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On Thu, 6 Jun 2024, Weber, Guenter Dr. wrote:<br>
<br>
> <br>
> Dear Håkan,<br>
> <br>
> <br>
> at the moment, we are characterizing our DAQ and have an event every ~0.1<br>
> seconds. We would then immediatly like to check if this event agrees with<br>
> what we fed into the DAQ system.<br>
> <br>
> <br>
> Would flush=1 force the DAQ to send out each event after it was recorded?<br>
<br>
No, after 1 s at most in that case. At the moment there is no 'immediate' <br>
flush.<br>
<br>
The --server=drasi,... would be the one. But that by default has a 0.5 s <br>
timeout, so can only be made worse wioth the --flush option.<br>
<br>
> And if yes, where should I put here?<br>
> <br>
> <br>
> ../r3bfuser/build_cc_ppc-linux_4.2.2_debug/m_read_meb.drasi \<br>
> --label=MCAL2 \<br>
> --triva=master,fctime=10,ctime=50 \<br>
> --server=drasi,dest=lyserv \<br>
> --buf=size=400Mi \<br>
> --max-ev-size=0x1000000 \<br>
> --subev=crate=1,type=20,subtype=2,control=9,procid=1 \<br>
> --eb=lyserv \<br>
<br>
Please try to add it in the --server=... options of the event builder.<br>
<br>
Cheers,<br>
Håkan<br>
<br>
<br>
> <br>
> <br>
> Thank you very much!<br>
> <br>
> <br>
> <br>
> <br>
> Best greetings<br>
> <br>
> Günter<br>
> <br>
> <br>
> <br>
> ____________________________________________________________________________<br>
> Von: subexp-daq <subexp-daq-bounces@lists.chalmers.se> im Auftrag von Håkan<br>
> T Johansson <f96hajo@chalmers.se><br>
> Gesendet: Donnerstag, 6. Juni 2024 16:50:34<br>
> An: Discuss use of Nurdlib, TRLO II, drasi and UCESB.<br>
> Betreff: Re: [subexp-daq] Question on DRASI <br>
> <br>
> Dear Günter,<br>
> <br>
> how long delays are you experiencing?<br>
> <br>
> The default partial buffer timeouts of drasi transport/stream network<br>
> servers looks like they should be 2 or 4 s, depending on the buffer size<br>
> (larger for > 4 MB).<br>
> <br>
> The file writing partial buffer timeout is 30 s.<br>
> <br>
> There are flush=Ns options both for the --server=... and --file-writer=...<br>
> commands.<br>
> <br>
> The modules are read out event-by-event?<br>
> Or there might be some buffering going on there as well?<br>
> <br>
> Cheers,<br>
> Håkan<br>
> <br>
> <br>
> <br>
> On Thu, 6 Jun 2024, Weber, Guenter Dr. wrote:<br>
> <br>
> ><br>
> > Dear friends,<br>
> ><br>
> ><br>
> > is it possible to tell the DAQ that it should send out each event right<br>
> > after it was collected? To us it looks like our DAQ is releasing the<br>
> > collected data in 'bursts'.<br>
> ><br>
> ><br>
> ><br>
> ><br>
> > Thank you very much!<br>
> ><br>
> ><br>
> ><br>
> > Best greetings<br>
> ><br>
> > Günter<br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> <br>
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