[kernel-bugs] [Bug 1159882] Excessive swapping when buffers / cache expand beyond free physical RAM
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https://bugzilla.suse.com/show_bug.cgi?id=1159882 https://bugzilla.suse.com/show_bug.cgi?id=1159882#c41 Michal Hocko <mhocko@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Flags| |needinfo?(vbabka@suse.com) --- Comment #41 from Michal Hocko <mhocko@suse.com> --- (In reply to Robert Delahunt from comment #40)
http://www.puresimplicity.net/~delahunt/vmstat/suse_stable/
I guess I didn't need help.
So I got the new kernel installed and selected it at boot. Ran the same dd test. I left it running and the system never used swap. /proc/sys/vm/swappiness still = 60.
OK, this is good to know. Newer kernels have changes which check refaults on anonymous memory as well so this has likely changed the balance. These would be out of scope for 15.2 unfortunately. Vlastimil, I remember we have discussed this problem in upstream some time ago. You've had a patch which has disabled the heuristic (2c012a4ad1a2). Testing with that reverted would sound like a good next step. -- You are receiving this mail because: You are the assignee for the bug.
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