On 29/08/2013 15:32, Mike Harding wrote: > I opened a ticket about this: kern/181632 > > Basically, if I do a 'zzz' and then wake the system up, operations like a > buildworld or portmaster take much longer after the resume - systat shows > very low CPU/disk utilization. It's 100% repeatable, I don't recall this > happening on 9.1 > > I build 9.2-RC3 from source (as I have for years) - this is a fairly > generic SMP system (i5 750 with 4 cpus). > > Let me know if I can provide any data - this is a fairly significant > regression for me as I have taken to bringing the system up as needed vs. > leaving it on all of the time.
I encountered that yesterday. Manually stepping down: sysctl dev.cpu.0.freq=800 And back up again: sysctl dev.cpu.0.freq=2400 fixed this for me. You can simply run powerd to mask the problem. It might have been around for ages as far as I know, because I usually use powerd. I just had it turned of for performance measurements and forgot to turn it back on before going into suspend. When I resumed and reran the tests the performance suddenly was abysmal. -- A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail? _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
