On Mon, Nov 15, 2010 at 07:09, Iain Buchanan <iai...@netspace.net.au> wrote: > On Tue, 2010-11-09 at 23:24 +0200, Fatih Tümen wrote: >> On Fri, Nov 5, 2010 at 08:45, Iain Buchanan <iai...@netspace.net.au> wrote: >> > OK so vm.swappiness seemed to help a bit but today I notice that swap >> > usage is up again. It's firefox: >> > >> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >> > 14072 iain 20 0 1369m 897m 15m S 3 29.5 113:14.91 firefox >> > >> > I think that's 1.3Gb + 900Mb... sounds like a memory leak to me. >> > >> > Anyone else run firefox for 113+ hours? I'm using 3.6.9-r1. >> > >> >> 1.3G is the grant total of Res and Swap. You need to read man top >> before judging not-entirely-accurate values reported by top. > > judging? I only said "I think"! > > sure, top has it's quirks, but it's ok for comparing against itself. > >> 900M is resident on your main memory. '113+ hours' is not a decent >> information to draw conclusion from. Running firefox for 113+ hours >> with a single tab on a text-only website is not same as running dozens >> of tabs with dozens of multimedia/embedded objects. > > sure, but running it for 10 or 100 or 1000 hours should produce roughly > the same characteristics for the same browsing behaviour if all other > things are equal. A few months ago this didn't cause any issues at all, > now I'm seeing high swap usage. I usually never use my 3G of physical > RAM. >
Can you recall what significant change have you made to the system? For emerged packages you can try smth like genlop --list --date 1 month ago and then check against the versions upgraded from. > Again today I see it is using about 900Mb in total, which seems quite > large. vm.swappiness is set to 0. I've upgraded firefox to 3.6.12. > > I had to reboot, but I'll check the usual statistics next time I see it. > You say swappiness is set to 0 but dont give any swap usage info. If there is any swap usage while swapiness is 0 then it would be weird and we could blame it on the kernel. I just googled mem usage firefox as I am running out of ideas. It seem like you are not the only one complaining about this. Take a look at these top results. There are some tweaking advice, see it they work for you. http://kb.mozillazine.org/Memory_Leak http://support.mozilla.com/en-US/kb/high+memory+usage Chromium, which I have been happily using for almost a year now, has a task manager which shows mem usage of every extension and tab. If firefox has switched to multiprocessing, which was a feature plan some time ago, similar tool should likely be available for firefox as well. -- Fatih
