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rfjakob / earlyoom

earlyoom - Early OOM Daemon for Linux
MIT License
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Earlyoom works only with zram ? #307

Open Augusto7743 opened 4 months ago

Augusto7743 commented 4 months ago

Hello. Thanks for reading my topic.

I want understand if is possible configure Earlyoom for works only when zram is 10 % free and not needing any ram percentage settings.

The configuration below not works EARLYOOM_ARGS="-s 10,10 -r 0"

What is the correct configuration ? Have an nice day.

rfjakob commented 3 months ago

Is zram reported as swap? What does free report?

Augusto7743 commented 3 months ago

Thanks for your reply.

cat /proc/meminfo

MemTotal: 4010556 kB MemFree: 151892 kB MemAvailable: 1422776 kB Buffers: 24 kB Cached: 1573952 kB SwapCached: 1516 kB Active: 2345580 kB Inactive: 638028 kB Active(anon): 1466864 kB Inactive(anon): 76332 kB Active(file): 878716 kB Inactive(file): 561696 kB Unevictable: 12408 kB Mlocked: 12408 kB SwapTotal: 2935804 kB SwapFree: 2072316 kB Zswap: 0 kB Zswapped: 0 kB Dirty: 52 kB Writeback: 0 kB AnonPages: 1420640 kB Mapped: 693088 kB Shmem: 126852 kB KReclaimable: 65972 kB Slab: 206956 kB SReclaimable: 65972 kB SUnreclaim: 140984 kB KernelStack: 11920 kB PageTables: 26752 kB SecPageTables: 0 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 4941080 kB Committed_AS: 5826280 kB VmallocTotal: 34359738367 kB VmallocUsed: 95768 kB VmallocChunk: 0 kB Percpu: 6528 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB FileHugePages: 0 kB FilePmdMapped: 0 kB Unaccepted: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 0 kB DirectMap4k: 692928 kB DirectMap2M: 3500032 kB DirectMap1G: 0 kB

command report zramctl

NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lzo-rle 2,8G 813,9M 272,1M 301,6M 6 [SWAP]

DISKSIZE is total maximum data allowed to be compressed not being exactly the total buffer size in ram. DATA is total data swapped in zram buffer. TOTAL is the RAM memory area used for compression buffer. Streams number of cpu core allowed to compress and decompress data.

jmakov commented 2 weeks ago

With ZRAM, earlyoom is unexpectedly killing processes with the setting EARLYOOM_ARGS="-s 5": earlyoom[895]: mem avail: 0 of 3 MiB ( 0.00%), swap free: 500283 of 773101 MiB (64.71%)