[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: troubleshooting slow disk writes on squeeze.



Siju George wrote:
> procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
...abbreviated...
>  r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
>  0  2  27608 441256    520 238372   20  223  1161  1020 3580 13200  1  5 72 22
>  0  1  29076 444256    384 235788    1  295  1378   386 3803 13353  1  5 69 24
>  0  1  30128 447432    380 231252    0  210  1174   778 3173 12366  1  5 70 25
>  0  2  30900 460532    368 220588    3  154  1166   327 3543 12931  1  5 70 24
>  0  1  32100 470876    360 210996    0  241   834   687 3738 13027  1  5 69 25
>  0  0  32096 479808    360 211668    5    0   150   347 2652 11732  1  3 95  1
>  0  1  32096 479056    360 212048   21    0   137    76 2689 11503  1  4 93  3
>  1  0  32092 465996    360 213196    7    0   193   791 2802 11265  1  8 88  3
>  1  0  32696 440728    360 209604    0  121   474  7969 3422 11772  2 17 66 15
>  2  0  32696 441132    360 209752    1    0  1288  6304 3049 10725  2 18 76  4
>  0  0  32696 442652    360 211644   16    0   401    35 2579 11009  1  6 89  4
>  0  0  32692 440784    360 212148    6    0    59   422 2800 11645  0  3 96  1
>  0  0  32852 445604    360 209796    0   32    67   386 2587 11338  1  3 94  2
>  1  0  33092 443600    360 207648    0   48     2   901 2617 11554  1  4 95  0

Look at the si and so column!  Those are listing page rates for swap
in and swap out.  Those are showing some very large numbers.  Your
machine is thrashing trying to swap memory in and out from disk.
Mostly out by the size of the large so numbers.

Bob

Attachment: signature.asc
Description: Digital signature


Reply to: