On 16 May 2011 12:52, Andy Smith <andy(a)bitfolk.com> wrote: Hi Andy top - 12:00:19 up 6 days, 11:30, 4 users, load average: 0.00, 0.08, 0.13 Tasks: 78 total, 2 running, 76 sleeping, 0 stopped, 0 zombie Cpu(s): 0.5%us, 1.4%sy, 0.0%ni, 98.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.2%st Mem: 233476k total, 213324k used, 20152k free, 4504k buffers Swap: 262132k total, 31252k used, 230880k free, 28176k cached $ free -m total used free shared buffers cached Mem: 228 208 19 0 4 27 -/+ buffers/cache: 176 51 Swap: 255 30 225 the aim is to try and work out, why the ram use sometimes wildly shifts. PMT

Because when i try and access the apache running, free ram drops, and swap use, goes up. -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. Andy Smith <andy(a)bitfolk.com> wrote: Hi Philip, On Mon, May 16, 2011 at 01:03:54PM +0100, philip taylor wrote: > top - 12:00:19 up 6 days, 11:30, 4 users, load average: 0.00, 0.08, 0.13 > Tasks: 78 total, 2 running, 76 sleeping, 0 stopped, 0 zombie > Cpu(s): 0.5%us, 1.4%sy, 0.0%ni, 98.0%id, 0.0%wa, 0.0%hi, 0.0%si, > 0.2%st > Mem: 233476k total, 213324k used, 20152k free, 4504k buffers > Swap: 262132k total, 31252k used, 230880k free, 28176k cached So as it stands there's about 28M of RAM being used as disk cache, so this system doesn't seems to be under much memory pressure. > the aim is to try and work out, why the ram use sometimes wildly shifts. How are you detecting this shift in memory usage? What problem is it causing? Cheers, Andy -- http://bitfolk.com/ -- No-nonsense VPS hosting "I am the permanent milk monitor of all hobbies!" -- Simon Quinlank_____________________________________________ users mailing list users(a)lists.bitfolk.com https://lists.bitfolk.com/mailman/listinfo/users

Hi Changing maxclients seems to have had the most impact, it looks like, I will continue monitoring, and see if there is anything else I can do. Thank you. Pmt -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. Andy Smith <andy(a)bitfolk.com> wrote: Hi Philip, On Mon, May 16, 2011 at 06:02:51PM +0100, scraliontis(a)gmail.com wrote: > > Because when i try and access the apache running, free ram drops, and swap use, goes up. And this causes a performance problem? Can you get a snapshot of that sort of output when there actually is a problem? Here are some notes on tuning Apache: https://tools.bitfolk.com/wiki/Apache_performance_tuning Cheers, Andy -- http://bitfolk.com/ -- No-nonsense VPS hosting_____________________________________________ users mailing list users(a)lists.bitfolk.com https://lists.bitfolk.com/mailman/listinfo/users