[Novalug] running out of memory
Tue Aug 23 12:28:54 EDT 2011
On Tue, 23 Aug 2011, Bob Copeland wrote:
> On Thu, Aug 11, 2011 at 1:17 PM, Walt Smith <firstname.lastname@example.org> wrote:
>> There are times when my imagination believes the box did some overnite
>> database update ( perhaps for "locate" ), used up the ram,
>> and by morning hasn't released the memory pool yet.
>> But thats my imagination since closing Firefox is the ONLY way to
>> a responsive system.
I am finding that if I go away from my computer for a while leaving
firefox running - often when I come back the machine frozen up and I
have to do a hard reboot. so i am closing down FF whenever I am not
Also making sure I do not go away from computer leaving any unsaved
> This is a real phenomenon -- all of the metadata crawled by the
> filesystem gets cached in the pagecache, creating memory pressure
> which can cause the OS to swap other memory out to disk (say,
> anonymous pages used by Firefox). See for example:
>> There was recent;y a news report that a FF team is going to
>> specialize in reducing memory leakage. I'll believe it AFTER
>> I see it. Not the marketing, not the hype, but blogs saying
>> it's really working better.
> In Firefox 7+ there is about:memory, and mozilla are filing
> bugs with developers of plugins that have memory leaks, so I am
> hopeful that the picture is getting better.
> As for X using up lots of memory, I'm not sure if it's still true
> but in the old days all pixmaps (i.e. any graphics that you see)
> belong to the X server, and any video memory would show up in its
> virtual memory map. So it would often show much more memory in use
> than you would expect.
> On my machine at least - F15 with Gnome 3 Shell, i915 using KMS,
> Xorg has 135 megs mapped, and only 9 megs resident, which is
> quite good.
Bonnie Dalzell, MA
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