On Sun, 28 Dec 2014, Phillip Susi wrote:
>
> Something seems to be eating up all of my swap, but it defies explanation:
>
> root@faldara:~# free -m
> total used free shared buffers cached
> Mem: 3929 2881 1048 146 192 1314
> - -/+ buffers/cache: 1374 2555
> Swap: 2047 2047 0
>
> root@faldara:~# (for file in /proc/*/status ; do cat $file ; done) |
> awk '/VmSwap/{sum += $2}END{ print sum}'
> 151804
>
> So according to free, my entire 2 gb of swap is used, yet according to
> proc, the total swap used by all processes in the system is only 151
> mb. How can this be?
shmem (tmpfs) uses swap, when it won't all fit in memory. df or du on
tmpfs mounts in /proc/mounts will report on some of it (and the difference
between df and du should show if there are unlinked but still open files).
ipcs -m will report on SysV SHM. /sys/kernel/debug/dri/*/i915_gem_objects
or similar should report on GEM objects.
Hugh
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