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Thomas Sherlock

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Posted By Thomas Sherlock Mon March 21, 2022 07:14 AM
Found In Egroup: Informix
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Since the update to 14.10, we're having to scale back our recovery threads counts because of how much faster they are, and them ending up in ready state and setting off alerting. However, there appears to be no way to actually confirm how many threads are assigned other than reading the onconfig and ...
Posted By Thomas Sherlock Wed April 07, 2021 03:44 AM
Found In Egroup: Informix
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Thanks Art, I'm going to take it there's no more direct instrumentation then. ------------------------------ Thomas Sherlock ------------------------------
Posted By Thomas Sherlock Wed March 31, 2021 12:36 PM
Found In Egroup: Informix
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I have a question about tuning kernel asychronous I/O, specifically on Linux (RHEL 7). For a bit of background, kernel parameter aio-max-nr controls the maximum number of KAIO requests, divided among all CPU VPs. Informix environment variable KAIOON then determines how many request "slots" (my term) ...