![]() |
![]() ![]()
Experimental Physics and
| ||||||||||||||
|
On Thu, 11 Aug 2022 at 22:24, Zhang, Tong <ZhangT at frib.msu.edu> wrote:
According to the Release Notes (hint hint), the mechanism was first published in Base 3.16.2, so it is available in any release of the EPICS 7 series. I would test drive that IOC with a current EPICS 7 release. First, you will be able to see that everything on the IOC is pretty much the same as under 3.15 and still works fine, so you have a good argument for migrating your IOCs to EPICS 7. Then, let it run and use the iocShell commands to monitor the usage of the queues. (Again from the release notes: The new iocsh commands are callbackQueueShow and scanOnceQueueShow ; both take an optional integer argument which must be non-zero to reset the high-water mark.)The numbers you determine (with a safety margin of at least 1-2k) will obviously also apply to the same IOC under 3.15. After all, having too large ring buffers means only a bit of wasted memory. Using some 10s of kB more or less will be noise on a Linux box with virtual memory. Cheers, ~Ralph
| ||||||||||||||
ANJ, 14 Sep 2022 |
![]() · Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing · |