[mythtv-users] 20 fold increase in slab memory usage after upgrading to 2.6.16-1.2069_FC4

Jeff jeff3140 at gmail.com
Tue Apr 11 00:22:22 UTC 2006


After upgrading my mythtv system from 2.6.11-1.1369_FC4 to
2.6.16-1.2069_FC4 from atrpms I see the slab memory
usage increased from 13MB to 214MB.

Something must be wrong here. This is a pretty standard
MythTV box. Reiserfs with a volume group, PVR-350,
M179, geforce NVidia card, Athalon cpu, 256MB memory.

Does anyone else see this kind of memory usage from
slabtop on the 2.6.16 kernel.

Any idea other than building a custom kernel
how I can track down who has used this memory?
It is pretty early in the boot process (before
/etc/rc.d/init.d/syslog is run).

 Active / Total Objects (% used)    : 50729 / 56957 (89.1%)
 Active / Total Slabs (% used)      : 9357 / 9358 (100.0%)
 Active / Total Caches (% used)     : 85 / 129 (65.9%)
 Active / Total Size (% used)       : 213347.84K / 214084.24K (99.7%)
 Minimum / Average / Maximum Object : 0.01K / 3.76K / 128.00K

  OBJS ACTIVE  USE OBJ SIZE  SLABS OBJ/SLAB CACHE SIZE NAME
 11300  11180  98%    0.03K    100      113       400K size-32
  8700   8700 100%    0.12K    290       30      1160K size-128
  6000   6000 100%   32.00K   6000        1    192000K size-32768
  4136   4104  99%    0.09K     94       44       376K vm_area_struct
  4130   3409  82%    0.06K     70       59       280K size-64
  3496   3474  99%    0.04K     38       92       152K sysfs_dir_cache
  3094   1802  58%    0.14K    119       26       476K dentry_cache
  1176    984  83%    0.16K     49       24       196K filp
  1160   1015  87%    0.02K      8      145        32K anon_vma
  1104   1075  97%    0.04K     12       92        48K acpi_operand
   912    912 100%    8.00K    912        1      7296K size-8192


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