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Load between 1 and 2. Can't find cause.

Discussion in 'General Discussion' started by nothsa, Aug 16, 2005.

  1. nothsa

    nothsa Well-Known Member

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    Below is a vmstat and an iostat of my server. During the time of the vmstat the load was between 1.5 and 2.0, and I can't find a reason for it. As far as I can see there's tons of memory available, less than half of the CPU is being used and iostat says that only 21% of my drives are being used.

    A top shows apache ("httpd") at the top using between 1 and 5% of the CPU (20% during traffic spikes, usually lasting no more than a second or two) and the program using the most memory is MySQL at 3.8% of mem.

    Can anyone shed some light on this? ANY help you can give me would be awesome. I'm willing to try anything at this point :confused: .


    Code:
    # vmstat 1
    
    procs                      memory      swap          io     system         cpu
     r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
     2  0  73484  17080 112932 672156    2    4    45   192  393    36  8  3 85  4
     0  0  73484  17080 112932 672164    0    0     0     0  910   405  4  1 95  0
     0  0  73484  16912 112932 672176    0    0     0     0  890   388  2  2 96  0
     0  0  73484  16908 112932 672184    0    0     0   524  968   491  4  1 95  0
     0  0  73484  16912 112936 672196    0    0     8     0  899   541 15  2 81  2
     0  0  73484  17040 112936 672200    0    0     0     0  806   381  2  3 95  0
     0  0  73484  17176 112936 672212    0    0     0     0  873   514  3  3 94  0
     0  0  73484  17096 112936 672216    0    0     0     0  921   480 12  3 85  0
     0  2  73484  16900 112936 672276    0    0    44   728 1131   722 19  3 55 23
     0  0  73484  16760 112936 672280    0    0     0   360  776   379  4  2 63 31
     0  0  73484  16732 112936 672288    0    0     0     0 1023   629 22  3 75  0
     1  0  73484  16720 112936 672292    0    0     0     0  862   440  7  2 91  0
     0  0  73484  15292 112936 672300    0    0     0     0  854   427 11  3 86  0
     0  0  73484  13452 112936 672304    0    0     0   568  874   632 16  4 80  0
     0  0  73484  13444 112936 672340    0    0    32     0 1067   431  2  1 96  1
     0  0  73484  12960 112940 673412    0    0  1064     0 1029   623 17  5 68 10
     0  0  73484  12484 112940 673416    0    0     0     0  755   300  4  3 93  0
     0  0  73484  12128 112940 673436    0    0     0     0  853   413 16  2 82  0
     0  0  73484  12480 112940 673448    0    0     0   732 1306   587  4  1 85 10
     0  0  73484   9288 112936 673464    0    0     0     0 1277   741 22  6 72  0
     0  0  73540   8928 112684 671904    0   56     0    56 1042   646 13  4 83  0
     3  0  73540   8880 112664 671444    0    0    36     0 1095   490 14  3 81  2
     0  0  73540  10772 112380 670516    0    0    80     0 1309   503 13  3 84  0
     0  0  73540  10720 112384 670520    0    0     0   868 1097   432  8  1 57 34
     0  0  73540  10692 112384 670528    0    0     0     0  980   485  8  1 91  0
     0  0  73540  10612 112384 670536    0    0     0     0  797   445 14  2 84  0
     5  0  73540  10224 112384 670536    0    0     0     0  671   432 11  5 84  0
     0  0  73540  10208 112384 670556    0    0    16     0  670   272  4  2 94  0
     0  0  73540  10252 112384 670556    0    0     0   616  683   351 10  0 81  9
     0  0  73540   9756 112384 670564    0    0     0     0  519   245  8  3 89  0
     0  0  73540   9880 112384 670304    0    0     0     0  465   212  8  1 91  0
     0  0  73540   9376 112384 670316    0    0     8     0  526   338  8  2 88  2
    Code:
    # iostat -xd hda hdc
    
    Linux 2.4.21-27.0.1.EL (sarah.nothsa.com)       08/16/2005
    
    Device:    rrqm/s wrqm/s   r/s   w/s  rsec/s  wsec/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
    hdc          0.77   5.29  1.60  3.54   17.95   71.13     8.98    35.56    17.34     0.28   18.78  42.65  21.91
    hda          5.27  27.48  3.56 10.60   70.09  305.47    35.05   152.73    26.52     0.38   17.12  15.47  21.91
     
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