Messages in this thread | | | Date | Tue, 13 Nov 2007 12:49:16 +0530 | From | "Balbir Singh" <> | Subject | Re: top lies ? |
| |
On Nov 13, 2007 12:38 PM, Al Boldi <a1426z@gawab.com> wrote: > kloczek wrote: > > Some data showed by top command looks like completly trashed. > > Fragment from top output: > > > > Mem: 2075784k total, 2053352k used, 22432k free, 19260k buffers > > Swap: 2096472k total, 136k used, 2096336k free, 1335080k cached > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP nFLT > > WCHAN COMMAND 14515 mysql 20 0 1837m 563m 4132 S 39 27.8 > > 27:14.20 1.2g 18 - mysqld > > > > How it is possible that swap ussage is 136k and swapped out portion of (in > > this case) mysqld process is 1.2g ? > > Welcome to OverCommit, aka OOM-nirvana. > > Try this: > # echo 2 > /proc/sys/vm/overcommit_memory > # echo 0 > /proc/sys/vm/overcommit_ratio > > But make sure you have enough swap. > > > Thanks!
The swap cache looks pretty big, may be top is including that data while reporting swap usage.
Balbir - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |