Linux-kernel mailing list archive 1999-23,: CPU Usage in 2.2.8

# CPU Usage in 2.2.8

Mike McLagan (mmclagan@invlogic.com)
Wed, 09 Jun 1999 07:27:30 -0400 (EDT)

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Hello,

Something in the transition from 2.2.7 and 2.2.8 caused a significant
problem here in terms of a couple of processes going nuts. The problem
continues into 2.2.9. Basically, any process that executes takes up an
inordinate amount of CPU time.

All the kernels are built the same. Stock kernel source +
raid0145-19990421-2.2.6 patch. The system is RH 6.0 + updated raidtools to
19990421 release. The system involved is a Dual Xeon III 500MHz 2048k cache,
512M of RAM, dual Seagate Metalist pro drives on a SuperMicro S2DGU motherboard
(Intel GX chipset).

Any hints?

Mike was here...

    --

      7:02am  up 2 min,  1 user,  load average: 1.74, 0.74, 0.27
    43 processes: 41 sleeping, 2 running, 0 zombie, 0 stopped
    CPU states:  0.1% user, 99.9% system,  0.0% nice, 426935.0% idle
    Mem:  517140K av,  23036K used, 494104K free,  14020K shrd,   3020K buff
    Swap: 131064K av,      0K used, 131064K free                 10848K cached

      PID USER     PRI  NI  SIZE  RSS SHARE STAT  LIB %CPU %MEM   TIME COMMAND
      475 root       0   0   424  424   364 S       0 49.2  0.0   0:02 gpm
      489 root       0   0  1220 1220  1136 S       0 30.7  0.2   0:05 httpd
        4 root       0   0     0    0     0 SW      0  8.4  0.0   0:07 kswapd
      430 root       0   0     0    0     0 SW      0  7.2  0.0   0:01 nfsd
      552 root       0   0  1024 1024   848 R       0  4.1  0.1   0:01 top
        1 root       0   0   476  476   408 S       0  0.0  0.0   0:03 init
        2 root       0   0     0    0     0 SW      0  0.0  0.0   0:02 kflushd
        3 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kpiod

      7:03am  up 3 min,  2 users,  load average: 1.16, 0.80, 0.33
    45 processes: 43 sleeping, 2 running, 0 zombie, 0 stopped
    CPU states:  0.0% user, 99.9% system,  0.0% nice,  0.0% idle
    Mem:  517140K av,  23696K used, 493444K free,  15620K shrd,   3024K buff
    Swap: 131064K av,      0K used, 131064K free                 10916K cached

      PID USER     PRI  NI  SIZE  RSS SHARE STAT  LIB %CPU %MEM   TIME COMMAND
      489 root       0   0  1220 1220  1136 S       0 39.4  0.2   0:28 httpd
        4 root       0   0     0    0     0 SW      0 29.0  0.0   0:35 kswapd
      475 root       0   0   424  424   364 S       0 23.3  0.0   0:12 gpm
        2 root       0   0     0    0     0 SW      0  6.5  0.0   0:09 kflushd
      566 root       0   0  1024 1024   848 R       0  1.6  0.1   0:01 top
        1 root       0   0   476  476   408 S       0  0.0  0.0   0:03 init
        3 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kpiod

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