On Thu, Feb 03, 2005 at 11:07:53PM -0700, Wes Shull wrote:
Since sometime after build 1176 (IIRC), I've noticed that the
KDE
System Monitor tray applet (/usr/lib/kde3/ktimemon_panelapplet.*) has
been reporting unbelievable amounts of memory used by the kernel.
I finally got around to taking a gander at the source to figure it
out... in KSample::readSample() in
kdeaddons-3.3.2/kicker-applets/ktimemon/sample.cc, it adds the Slab:
line (if it exists) to the Buffers: line to estimate kernel memory
usage. Seems reasonable to me. So I compared those values as
reported by two different kernels.
Under 741 (current FC3 update), meminfo says:
Buffers: 21676 kB
Slab: 24252 kB
Which I can believe. But under not too different usage, 1124 (latest
rawhide) reports:
Buffers: 8052 kB
Slab: 116104 kB
Which seems crazy (this is a 256 MB machine).
So, has the meaning of the Slab: line changed, such that I need to
bugzilla this for kdeaddons, or do I need to report this against the
kernel?
It depends. You just might have completely different things in
slab cache. if you cat /proc/slabinfo (or run slabtop) you should
see which slab has had the most growth between the two kernels.
Dave