Largest memory mappings troubleshooting
Top RSS mappings by region; spot a leaking heap, mmap or shared lib bloat
pmap -x <pid> | sort -k3 -rn | head
more troubleshooting
all 32 commands →
Kernel slab top consumers
slabtop -o -s c | head -20
Reclaimable slab memory
grep -E 'Slab|SReclaimable|SUnreclaim' /proc/meminfo
OOM killer in dmesg
dmesg -T | grep -iE 'killed process|out of memory' | tail
OOM score of process
cat /proc/<pid>/oom_score /proc/<pid>/oom_score_adj
cgroup v2 OOM events
cat /sys/fs/cgroup/<name>/memory.events | grep -E 'oom|max'