[CentOS] kbcached tuning on CentOS 4

Daniel de Kok danieldk at pobox.com
Mon Sep 11 14:35:55 UTC 2006

On Fri, 2006-09-08 at 10:31 -0400, Justin Randall wrote:
> I had been chasing a potential memory leak until “sar –r”, had
> revealed that all the “mysteriously used” memory was actually being
> taken up by the kernel data cache.  It is chewing up all unused memory
> on the system slowly over time, which is a concern.

Why is this a concern? The larger a cache is, the more potential cache
hits. Linux is pretty smart about managing caches and buffers, and will
grow/shrink the cache depending on the amount of memory.

-- Daniel

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