Difference between CommitLimit and Comitted_AS?

["Westerdale, John" <John.Westerdale@stryker.com>]

Hi All,

Am interested in differentiating the meaning of Commit* and Vmalloc*.

I had thought that the Committed_AS was the sum of memory allocations,
and Commit_Limit was the available memory to serve this from.

That said, I winced when I saw that Committed_AS was almost twice the
Commit__Limit.

Vmalloc looks inconsequential, but, the Commit* numbers must be there
for a reason.

Is it safe to continue running with such a perceived over-commit?

Is this evidence of a leak or garbage collection issues?

This system functions as an App/Web front end using  Tomcat servelet
engine, FWIW.

Thanks

John Westerdale


MemTotal:     16634464 kB
MemFree:      11077520 kB
Buffers:        420768 kB
Cached:        4379000 kB
SwapCached:          0 kB
Active:        4577960 kB
Inactive:       685344 kB
HighTotal:    15859440 kB
HighFree:     10987632 kB
LowTotal:       775024 kB
LowFree:         89888 kB
SwapTotal:     4194296 kB
SwapFree:      4194296 kB
Dirty:              12 kB
Writeback:           0 kB
AnonPages:      462748 kB
Mapped:          65420 kB
Slab:           260144 kB
PageTables:      21712 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  12511528 kB
Committed_AS: 22423356 kB
VmallocTotal:   116728 kB
VmallocUsed:      6600 kB
VmallocChunk:   109612 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB	

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