On 13.09.2015 16:42, Vladimir Davydov wrote: > - Patches 1-2 prepare memcg for upcoming changes in oom design. > - Patch 3 reworks oom locking design so that the executioner waits for > victim to exit. This is necessary to increase oom kill rate, which is > essential for berserker mode. > - Patch 4 drops unused OOM_SCAN_ABORT > - Patch 5 introduces oom timeout. > https://jira.sw.ru/browse/PSBM-38581 > - Patch 6 makes oom fairer when it comes to selecting a victim among > different containers. > https://jira.sw.ru/browse/PSBM-37915 > - Patch 7 prepares oom for introducing berserker mode > - Patch 8 resurrects oom berserker mode, which is supposed to cope with > actively forking processes. > https://jira.sw.ru/browse/PSBM-17930 > > https://jira.sw.ru/browse/PSBM-26973 > > Changes in v3: > - rework oom_trylock (patch 3) > - select exiting process instead of aborting oom scan so as not to keep > busy-waiting for an exiting process to exit (patches 3, 4) > - cleanup oom timeout handling + fix stuck process trace dumped > multiple times on timeout (patch 5) > - set max_overdraft to ULONG_MAX on selected processes (patch 6) > - rework oom berserker process selection logic (patches 7, 8) > > Changes in v2: > - s/time_after/time_after_eq to avoid BUG_ON in oom_trylock (patch 4) > - propagate victim to the context that initiated oom in oom_unlock > (patch 6) > - always set oom_end on releasing oom context (patch 6) > > > Vladimir Davydov (8): > memcg: add mem_cgroup_get/put helpers > memcg: add lock for protecting memcg->oom_notify list > oom: rework locking design > oom: introduce oom timeout > oom: drop OOM_SCAN_ABORT > oom: rework logic behind memory.oom_guarantee > oom: pass points and overdraft to oom_kill_process > oom: resurrect berserker mode > > fs/proc/base.c | 2 +- > include/linux/memcontrol.h | 33 ++- > include/linux/oom.h | 46 +++- > kernel/sysctl.c | 7 + > mm/memcontrol.c | 235 +++++++-------------- > mm/oom_kill.c | 509 > ++++++++++++++++++++++++++++++++++++--------- > mm/page_alloc.c | 6 +- > net/packet/af_packet.c | 4 +- > 8 files changed, 562 insertions(+), 280 deletions(-) >
Reviewed-by: Kirill Tkhai <[email protected]> _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
