On Mon, Jan 25, 2016 at 04:46:58PM +0000, Hugh Greenberg wrote: > Kirill A. Shutemov <kirill <at> shutemov.name> writes: > > > > > On Sat, Jan 23, 2016 at 03:57:21PM +0000, Hugh Greenberg wrote: > > > Kirill A. Shutemov <kirill <at> shutemov.name> writes: > > > > > > > > Could you try to insert > "late_initcall(set_recommended_min_free_kbytes);" > > > > back and check if makes any difference. > > > > > > > > > > We tested adding late_initcall(set_recommended_min_free_kbytes); > > > back in 4.1.14 and it made a huge difference. We aren't sure if the > > > issue is 100% fixed, but it could be. We will keep testing it. > > > > It would be nice to have values of min_free_kbytes before and after > > set_recommended_min_free_kbytes() in your configuration. > > > > Before adding set_recommended_min_free_kbytes: 5391 > After: 67584 [ add more people to the thread ] The 'before' value look low to me for machine with 2G of RAM. In the bugzilla[1], you've mentioned zram. I wounder if we need to increase min_free_kbytes when zram is in use as we do for THP. [1] https://bugzilla.kernel.org/show_bug.cgi?id=110501 -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>