Re: Unbloating the kernel, was: :mem=16MB laptop testing

From: Jan-Benedict Glaw
Date: Fri Oct 17 2003 - 06:51:54 EST


On Wed, 2003-10-15 23:08:39 +1000, Nick Piggin <piggin@xxxxxxxxxxxxxxx>
wrote in message <3F8D46D7.1020105@xxxxxxxxxxxxxxx>:
> Jan-Benedict Glaw wrote:
> >On Tue, 2003-10-14 18:33:49 +0100, John Bradford <john@xxxxxxxxxxxx>
> >wrote in message
> ><200310141733.h9EHXnYg002262@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>:

> >Achtually, with HZ at around 100 (or oven 70..80), an old i386 or i486
> >will *start* just fine, at least at 8MB. However, over some days /
> >weeks, the machine gets slower and slower (my testdrive: my 90MHz
> >P-Classic with 16MB). Even with that "much" RAM, I get hit by whatever
> >slows down the machine. I *think* that it's the MM subsystem, but I'm
> >really not skilled enough with it to blame it:)
> >
>
> Thats interesting. Its probably a memory leak I guess. Make sure to rule out
> memory leaks in userspace applications, then get /proc/meminfo,
> /proc/slabinfo
> on the box after it is getting slow, and also, after the box is newly
> booted.

Well, the box is still fine useable, but it's only rebooted some days
ago. However, I see size-64 (non-DMA) is going sloooowly up... What do I
do with the box? minicom (it's kind of a console server:), NATting, IPv6
gw. No X11, normally no local access at all.

On my Athlon (dual), I've already reached 319780 allocations in size-64,
but it seems to be currently stable, though...

I do _not_ see a leak in he size-4k region.

MfG, JBG

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