On 02/09/2011 04:25 PM, john wrote: > Hi all, > > I've noticed that I have a memory leak under Ubuntu Lucid. I am > running a quad core Opteron with 16 Gigs of ram, 64 bit OS with > clients built with i386 option. Everything > starts off fairly well, but within a day or two I've used up nearly > all of the 16 gigs. Right now, with a four days of uptime and only 5 > users on the system, free shows me only 2 gigs left but I don't see > anything > crazy using top. This problem has persisted accross kernal upgrades. > Output from uname, free, and top pasted below. Any ideas how I might > track down the what's going on? > > Your advice would be appreciated. > > top - 13:20:22 up 4 days, 15:18, 8 users, load average: 0.31, 0.34, 0.28 > Tasks: 1541 total, 1 running, 1540 sleeping, 0 stopped, 0 zombie > Cpu(s): 1.8%us, 0.6%sy, 0.0%ni, 97.5%id, 0.0%wa, 0.0%hi, 0.1%si, 0.0%st > Mem: 16536276k total, 13775936k used, 2760340k free, 830484k buffers > Swap: 19803128k total, 0k used, 19803128k free, 9575612k cached
Good news: you don't have a memory leak! Yes, about 13 GB of RAM is being used, but about 10 GB of that is buffers and cache, so your apps are only using about 3 GB. You should be grateful for all that cache. That's about 9 GB of stuff that can be read straight from RAM instead of hard drives. Jeff ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
