On Wednesday 21 January 2004 22:20, Alex Madon wrote: > Well the top issued was corresponding to a concurrency of 20 (so a level > where swap is not sollicited). > With a concurrency of 60, swap is very high > > Here is a "movie" of how swap is maanged (a snapshot every 5 sec) [used sits around 110MB, spikes to 240MB then gradually drops back to 153MB just under a minute later]
> and the parallel with Mem [buffer memory plumets from 20MB down to 6MB, then stabilises around 6.5MB] OK - I'm guessing the two spikes in the figures are as the ab requests hit, spawning http daemons and postgres backends. > One can see that at the maximum feeling of swap (74700k free swap), the > full picture is: > > > 22:51:54 up 3:58, 6 users, load average: 47.38, 18.53, 7.79 > 131 processes: 130 sleeping, 1 running, 0 zombie, 0 stopped > CPU states: 5.3% user 3.0% system 0.0% nice 0.0% iowait 91.6% idle Although Tom pointed to the high CPU in a previous post, here you're not suffering on CPU. Run a "vmstat 5" while this is happening - that'll show us the details. -- Richard Huxton Archonet Ltd ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
