== sanity test 124b: lru resize (performance test) ================================================================================= 09:16:12 (1787404572)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 929 (time 1787404587.05 total 10.01 last 92.83)
 - open/close 1774 (time 1787404597.06 total 20.02 last 84.44)
 - open/close 2577 (time 1787404607.06 total 30.02 last 80.27)
 - open/close 3479 (time 1787404617.06 total 40.02 last 90.20)
 - open/close 4231 (time 1787404627.07 total 50.03 last 75.13)
 - open/close 4982 (time 1787404637.08 total 60.04 last 75.02)
 - open/close 5746 (time 1787404647.09 total 70.04 last 76.36)
 - open/close 6556 (time 1787404657.11 total 80.07 last 80.78)
 - open/close 7325 (time 1787404667.12 total 90.08 last 76.83)
total: 8000 open/close in 97.35 seconds: 82.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1787404836 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 927 (time 1787404941.10 total 10.01 last 92.61)
 - open/close 1810 (time 1787404951.10 total 20.01 last 88.28)
 - open/close 2729 (time 1787404961.11 total 30.02 last 91.84)
 - open/close 3638 (time 1787404971.12 total 40.03 last 90.85)
 - open/close 4604 (time 1787404981.12 total 50.03 last 96.57)
 - open/close 5506 (time 1787404991.13 total 60.04 last 90.12)
 - open/close 6415 (time 1787405001.14 total 70.04 last 90.85)
 - open/close 7328 (time 1787405011.14 total 80.04 last 91.30)
total: 8000 open/close in 87.57 seconds: 91.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1787405120 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second