- 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(-) -- 2.1.4 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
