At 12:46 PM 12/12/00 -0800, you wrote:
>
>:Yep, they are news (nntp) frontends, but no feed stuff. They run a custom
>:nntpd that access the spool by NFS. They have been running that way for
>:several years and the last rev to the nntpd was at least 6 months old. This
>:was the top from a server still running 4.1.1-releng (just before
>:4.2-release):
>:
>:--------
>:last pid: 73544; load averages: 1.52, 2.07, 2.24 up 1+20:15:10
>:20:43:28
>:574 processes: 7 running, 567 sleeping
>:CPU states: 19.5% user, 0.4% nice, 22.9% system, 9.9% interrupt, 47.3%
idle
>:Mem: 286M Active, 92M Inact, 107M Wired, 15M Cache, 61M Buf, 996K Free
>:Swap: 600M Total, 600M Free
>:-------
>:
>:I saw there was a big different in Inact and no swap used.
>:
>:>:-----
>:>:last pid: 26893; load averages: 36.05, 40.55, 47.01 up 0+04:29:07
>:>:18:14:54
>:>:513 processes: 9 running, 503 sleeping, 1 zombie
>:>:CPU states: 21.3% user, 0.7% nice, 30.0% system, 10.7% interrupt, 37.3%
>:idle
>:>:Mem: 196M Active, 204M Inact, 83M Wired, 17M Cache, 61M Buf, 1152K Free
>:>:Swap: 600M Total, 17M Used, 583M Free, 2% Inuse, 232K Out
>:
>:Here was a pxl from one of the servers... thanks for helping
>:
>: UID PID PPID CPU PRI NI VSZ RSS WCHAN STAT TT TIME COMMAND
>: 0 0 0 0 -18 0 0 0 sched DLs ?? 0:00.74
(swapper)
>:...
>
> Hmm. It all looks normal, even the swap useage. Except for the
> load average. Is the machine less responsive then normal? It could
> just be the way the load average is being computed.
>
> -Matt
Sorry to say, the system performance degraded with the high load. In
telnet, it felt like a system with load of 40. With the 'working' FreeBSD,
the servers would still performance better (load >10) with twice the
connections. I still suspect that it was related to the server start to
swap heavily even with 200+M of Inact memory? The strange part was the swap
Used stayed relatively low (>20M), but, with top, the swap In and Out
changed every refresh.
Regards
Best regards
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