On 05/19/2017 08:59 AM, Konstantin Khlebnikov wrote: > Show count of global oom killer invocations in /proc/vmstat Maybe some more rationale why is that useful? Vlastimil > Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx> > --- > include/linux/vm_event_item.h | 1 + > mm/oom_kill.c | 1 + > mm/vmstat.c | 1 + > 3 files changed, 3 insertions(+) > > diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h > index d84ae90ccd5c..1707e0a7d943 100644 > --- a/include/linux/vm_event_item.h > +++ b/include/linux/vm_event_item.h > @@ -41,6 +41,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, > KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY, > PAGEOUTRUN, PGROTATED, > DROP_PAGECACHE, DROP_SLAB, > + OOM_KILL, > #ifdef CONFIG_NUMA_BALANCING > NUMA_PTE_UPDATES, > NUMA_HUGE_PTE_UPDATES, > diff --git a/mm/oom_kill.c b/mm/oom_kill.c > index 04c9143a8625..c734c42826cf 100644 > --- a/mm/oom_kill.c > +++ b/mm/oom_kill.c > @@ -883,6 +883,7 @@ static void oom_kill_process(struct oom_control *oc, const char *message) > */ > do_send_sig_info(SIGKILL, SEND_SIG_FORCED, victim, true); > mark_oom_victim(victim); > + count_vm_event(OOM_KILL); > pr_err("Killed process %d (%s) total-vm:%lukB, anon-rss:%lukB, file-rss:%lukB, shmem-rss:%lukB\n", > task_pid_nr(victim), victim->comm, K(victim->mm->total_vm), > K(get_mm_counter(victim->mm, MM_ANONPAGES)), > diff --git a/mm/vmstat.c b/mm/vmstat.c > index 76f73670200a..fe80b81a86e0 100644 > --- a/mm/vmstat.c > +++ b/mm/vmstat.c > @@ -1018,6 +1018,7 @@ const char * const vmstat_text[] = { > > "drop_pagecache", > "drop_slab", > + "oom_kill", > > #ifdef CONFIG_NUMA_BALANCING > "numa_pte_updates", > > -- > 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> > -- 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>