Belinda Lawson wrote: > Hi, Dallas. Thanks for your reply. I am currently trying to set my soft > limit to 256 (65536 pages?) and my hard limit to 512 (131072 pages?) and > I > am finding that the documentation says that I should be able to do that > using files like this: > > soft limit in a file called rss That should be rss.soft. > hard limit in a file called rss.hard > > However, in this case, only my hard limit is being honored when I restart > my > vserver. Does that make any sense? What makes you say that? Is /proc/virtual/<xid>/limit showing the soft limit as being unset? > Perhaps I missed something. I can > successfully go back and set it with the vlimit command after the vserver > starts, but the files aren't doing what I would expect on startup. > > Thanks again, > -Belinda > > On Jan 24, 2008 10:16 AM, Dallas Kashuba <dallas@dreamhost.com> wrote: > >> Here's my understanding: >> >> If you want 256M of ram and 256M of swap, you want to set rss soft >> limit to 256MB and rss hard limit to 512MB (the sum of both ram and >> swap). We also set the as limits adequately high. >> >> Hopefully that helps, >> Dallas >> >> On Jan 23, 2008, at 10:15 PM, Belinda Lawson wrote: >> >> > Hi, I need a bit of help understanding how memory management works >> > inside a vserver. My problem is that I would like to mimic the >> > behavior of a unix system with 256M ram and 256M swap. I have read >> > the documentation on the wiki, but I am still not certain how to >> > mimic the behavior of swap. >> > >> > In my experiments, if I set the rss hard limit to 256M to reflect >> > the physical ram, it begins to kill processes (somewhat randomly?) >> > if more than 256M is requested, rather than allow swap to be used. >> > In fact, I never see swap used at all, which is very strange since >> > `free` reports that swap does exist inside the vserver. Could you >> > help me understand how I can adjust the rss and as limits to get >> > behavior more in line with my goal? >> > >> > Thanks, in advance, for any enlightenment you can provide. >> > >> > Best regards, >> > -Belinda >> >> > -- Daniel Hokka Zakrisson