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josacar

nfsd high system usage

Dec 2nd, 2011
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  1. # cat /proc/net/dev
  2. Inter-| Receive | Transmit
  3. face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
  4. lo: 11815 109 0 0 0 0 0 0 11815 109 0 0 0 0 0 0
  5. eth0: 20820950 297017 0 0 0 0 0 0 858739973 587287 0 0 0 0 0 0
  6.  
  7.  
  8. # bwm-ng
  9.  
  10. bwm-ng v0.6 (probing every 0.500s), press 'h' for help
  11. input: /proc/net/dev type: rate
  12. - iface Rx Tx Total
  13. ==============================================================================
  14. lo: 0.00 b/s 0.00 b/s 0.00 b/s
  15. eth0: 731.32 Kb/s 31.82 Mb/s 32.53 Mb/s
  16. ------------------------------------------------------------------------------
  17. total: 731.32 Kb/s 31.82 Mb/s 32.53 Mb/s
  18.  
  19. # top -n1 | grep nfsd
  20. 1355 root 20 0 0 0 0 S 31.4 0.0 0:56.92 nfsd
  21. 1357 root 20 0 0 0 0 R 25.5 0.0 0:33.39 nfsd
  22. 1359 root 20 0 0 0 0 S 19.6 0.0 0:38.06 nfsd
  23. 1358 root 20 0 0 0 0 S 7.8 0.0 0:17.66 nfsd
  24. 1361 root 20 0 0 0 0 S 3.9 0.0 0:12.02 nfsd
  25. 1362 root 20 0 0 0 0 S 2.0 0.0 0:10.34 nfsd
  26.  
  27.  
  28. # vmstat 1
  29. procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
  30. r b swpd free buff cache si so bi bo in cs us sy id wa
  31. 1 0 3060 65148 6792 866376 0 8 3005 241 3294 95654 2 65 22 11
  32. 2 1 3060 85112 6792 846304 0 0 3968 0 4617 411174 1 78 2 19
  33. 0 1 3060 85072 6792 845936 0 0 3584 0 4245 373632 0 72 0 28
  34. 3 1 3060 85112 6792 846208 0 0 2816 0 3489 361986 0 68 0 32
  35.  
  36.  
  37. # mpstat 1
  38. Linux 3.1.0-1-686-pae 02/12/11 _i686_ (1 CPU)
  39.  
  40. 23:38:56 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
  41. 23:38:57 all 0,00 0,00 93,94 0,00 0,00 1,01 0,00 0,00 5,05
  42. 23:38:58 all 0,00 0,00 96,04 0,00 0,00 0,00 0,00 0,00 3,96
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