Re: [PATCH] getdelays: show average CPU/IO/SWAP/RECLAIM delays

KOSAKI Motohiro
2011-05-09T05:40:32Z

> I find it very handy to show the average delays in milliseconds.
>
> Example output (on 100 concurrent dd reading sparse files):
>
> CPU count real total virtual total delay total delay average
> 986 3223509952 3207643301 38863410579 39.415ms
> IO count delay total delay average
> 0 0 0ms
> SWAP count delay total delay average
> 0 0 0ms
> RECLAIM count delay total delay average
> 1059 5131834899 4ms
> dd: read=0, write=0, cancelled_write=0
>
> CC: Mel Gorman <mel@linux.vnet.ibm.com>
> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
> ---
> Documentation/accounting/getdelays.c | 33 +++++++++++++++----------
> 1 file changed, 20 insertions(+), 13 deletions(-)

Cool.
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>