Re: amrd disk performance drop after running under high load

2007-11-23 Thread Alexey Popov
! Really disabling Patrol Reads solves the problem. Thank you! I have many amrd's and all of them appear to have Patrol Reads enabled by default. But the problem happenes only on three of them. Is this a hardware problem? With best regards, Alexey Popov

Re: amrd disk performance drop after running under high load

2007-11-13 Thread Alexey Popov
0x 0x22ec ONLINE 0 050x 0x22ec ONLINE I tried to run with disabled Read-ahead, but it didn't help. With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org

Re: amrd disk performance drop after running under high load

2007-11-11 Thread Alexey Popov
disk load peaks. http://83.167.98.162/gprof/mtx-graph/mtxgifnew/ With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]

Re: amrd disk performance drop after running under high load

2007-11-09 Thread Alexey Popov
statistics on mutex profiling and it shows there's no problem in mutexes. http://83.167.98.162/gprof/mtx-graph/mtxgifnew/ I have no idea what else to check. With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org

Re: amrd disk performance drop after running under high load

2007-10-31 Thread Alexey Popov
, this ussie was gone, but the main problem was left. Also I have this issue with interrupt aliasing on many servers without problems. With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo

Re: amrd disk performance drop after running under high load

2007-10-19 Thread Alexey Popov
difference in CPU usage. I disagree about your words about recent version. I have this effect on many servers with latest FreeBSD-6-stable and em. Actually I have more servers with this effect than without it. With best regards, Alexey Popov ___ freebsd

Re: amrd disk performance drop after running under high load

2007-10-17 Thread Alexey Popov
to run in multiple workers. I'll see if it helps. What else can i try? With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL

Re: amrd disk performance drop after running under high load

2007-10-17 Thread Alexey Popov
profiling results. I'll try to collect it again later. See vmstats in attach (vmstat -z; netstat -m; vmstat -i; vmstat -w 1 | head -11;). Also you can see kgmon profiling results at: http://83.167.98.162/gprof/ With best regards, Alexey Popov ITEM SIZE LIMIT USED

Re: amrd disk performance drop after running under high load

2007-10-16 Thread Alexey Popov
are in lockf state. Apache is not much used here, it is just for kind of content management. It is not exposed to external users. With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd

Re: amrd disk performance drop after running under high load

2007-10-16 Thread Alexey Popov
to large files like mp3 or video. What does vmstat -z show during the good and bad times? I'll send this data when the bad times will happen next time. With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org

amrd disk performance drop after running under high load

2007-10-15 Thread Alexey Popov
information regarding this server if needed. What else can I try to solve the problem??? With best regards, Alexey Popov ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail