On Tue, 2 Feb 2016 at 20:34 -0000, Benjamin Smith wrote:
Any idea?
Wild guessing...How old a system? ~5 year old Nehalem? If so try:
echo 0 > /proc/sys/vm/zone_reclaim_mode
For some memory performance diagnosing try 'sar':
sar -B 10
There are lots of other sar options which might be useful.
Stuart