On Mon, 7 Mar 2016, Michal Hocko wrote: > On Mon 29-02-16 22:02:13, Michal Hocko wrote: > > Andrew, > > could you queue this one as well, please? This is more a band aid than a > > real solution which I will be working on as soon as I am able to > > reproduce the issue but the patch should help to some degree at least. > > Joonsoo wasn't very happy about this approach so let me try a different > way. What do you think about the following? Hugh, Sergey does it help > for your load? I have tested it with the Hugh's load and there was no > major difference from the previous testing so at least nothing has blown > up as I am not able to reproduce the issue here. Did not help with my load at all, I'm afraid: quite the reverse, OOMed very much sooner (as usual on order=2), and with much more noise (multiple OOMs) than your previous patch. vmstats.xz attached; sorry, I don't have tracing built in, and must move on to the powerpc issue before going back to bed. I do hate replying without having something constructive to say, but have very little time to think about this, and no bright ideas so far. I do not understand why it's so easy for me to reproduce, yet impossible for you - unless it's that you are still doing all your testing in a VM? Is Sergey the only other to see this issue? Hugh
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