11 Sep
2006
11 Sep
'06
2:35 p.m.
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