Experimental Physics and Industrial Control System
I had the logic in my original message wrong, canBlock=Yes is what a slow device should be using. When you run asynReport if any drivers show canBlock:No then those are the ones that could be slowing down the scan task.
Mark
-----Original Message-----
From: Konrad, Martin <[email protected]>
Sent: Wednesday, April 3, 2019 2:11 PM
To: Mark Rivers <[email protected]>; Dirk Zimoch <[email protected]>
Cc: [email protected]
Subject: Re: Excessive scan times for periodic scans
Hi Mark/Dirk,
> Is it possible that some device that should be asynchronous is
> actually synchronous? If this is an asyn device then perhaps it did
> not set ASYN_CANBLOCK when it should have.
You're right, the canBlock flag is in fact "Yes". Is this how it should be for simple telnet-like StreamDevice communication over TCP?
Thanks,
Martin
--
Martin Konrad
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824-1321, USA
Tel. 517-908-7253
Email: [email protected]
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