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RHEL6 kernel and cache/free memory [message #43457] Tue, 13 September 2011 00:16 Go to previous message
raver119 is currently offline  raver119
Messages: 18
Registered: September 2011
Location: Ukraine
Junior Member
After upgrading kernel from debian 2.6.32-openvz-amd64 to RHEL6 Linux thor 2.6.32-042stab035.1, i have problem with free memory.
It almost never (literally, never) goes below 9GB.
So as cache almost never goes over 7GB.

vmstat:
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
7 1 0 9446020 813240 7463328 0 0 713 452 109 23 14 5 60 20


Are there any significant changes in memory commitment in rhel6?
Maybe some kind of reserve for guest nodes?

p.s. server has 24GB of RAM, and it has plenty of stuff to cache Smile

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