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

Subject: Re: scan tasks and monitors???
From: "Leonard J. Reder" <[email protected]>
To: Leo Dalesio <[email protected]>
Cc: EPICS Tech-Talk <[email protected]>
Date: Wed, 27 Sep 2000 08:40:41 -0700
Yes this is actually the work around I have used until I can
figure out a way to speed up the frame grabs.

Len

Leo Dalesio wrote:
> 
> The fact that the record was processed, causes it to queue all the event
> that the array changed. You are not really receiving all of them - you are
> receiving copies of the most recent one. The array space required to queue
> was deemed too much to copy the data into the queue. To ingest these at the
> highest rate, some synchronization with the channel access client would be
> worthwhile. An option:
> make the image record scann Passive,
> have the channel access client put a 1 to the PROC field to cause it to
> process every time a new image is received.
> 
> It seems that it is a little unfair to send multiple copies of the same
> array. Perhaps the default behavoir for arrays should be to cache the array.
> 
> Needless to say, it is a bad thing to take up more than 100% of the
> processor.
> 
>     Bob

-- 
____________________________________________________
Leonard J. Reder
Jet Propulsion Laboratory
Interferometry Systems and Technology Section 383
Email: [email protected]
Phone (Voice): 818-354-3639
____________________________________________________


References:
scan tasks and monitors??? Leonard J. Reder
Re: scan tasks and monitors??? Leo Dalesio

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