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<== Date ==> <== Thread ==>

Subject: Re: Question about the speed of synchronization of CaChannel (python file in the attachment) ?
From: "Wang Xiaoqiang (PSI)" <xiaoqiang.wang@psi.ch>
To: lzf neu <lzfneu@live.com>
Cc: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Fri, 13 Oct 2017 09:00:29 +0000
Hi,


At the end of myDriver.value_callback, could you add “self.updaePVs()”?
Until that method is called, the change events are not seen to clients.

Best
Xiaoqiang

> On 13 Oct 2017, at 10:41, lzf neu <lzfneu@live.com> wrote:
> 
> Hi,
> 
> I use CaChannel python package to monitor a PV 'caLab:okok' and do some simple treatments of the PV value, then synchronise the treated PV value to 'MTEST:d00' and 'MTEST:d01' , and it works.
> 
> However, the problem is that when monitoring the PVs ('MTEST:d00' and 'MTEST:d01'), the  speed ofsynchronization of "camonitor MTEST:d00", "camonitor MTEST:d01" are quite slower than "camonitor caLab:okok", and  MTEST:d00 and MTEST:d01 lost many data from caLab:okok.
> 
> I have no idea how to solve the problem, I try to modify the command "server.process(0.1)" to "server.process(0)" of the main function, but  I failed, the speed of synchronizaiton is still very very slow, and it seems the more PVs synchronization the slower the speed is.
> 
> I have attatched the python file in the attachment.
> 
> Any help will be appreicated and thanks in advance !
> 
> Zhefu
> 
> 
> 
> 
> 
> 
> <1.py>


Replies:
答复: Problem still exist - Question about the speed of synchronization of CaChannel (python file in the attachment) ? lzf neu
References:
Question about the speed of synchronization of CaChannel ? lzf neu
答复: Question about the speed of synchronization of CaChannel (python file in the attachment) ? lzf neu

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