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
