== sanity test 124b: lru resize (performance test) ================================================================================= 23:35:22 (1746070522)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1581 (time 1746070535.03 total 10.01 last 158.02)
 - open/close 3030 (time 1746070545.03 total 20.01 last 144.88)
 - open/close 4688 (time 1746070555.03 total 30.01 last 165.68)
 - open/close 6157 (time 1746070565.04 total 40.02 last 146.79)
 - open/close 7459 (time 1746070575.04 total 50.02 last 130.16)
total: 8000 open/close in 54.38 seconds: 147.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 400
400
 - unlinked 0 (time 1746070673 ; total 0 ; last 0)
total: 8000 unlinks in 34 seconds: 235.294113 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1395 (time 1746070719.71 total 10.01 last 139.42)
 - open/close 2903 (time 1746070729.71 total 20.01 last 150.73)
 - open/close 4306 (time 1746070739.72 total 30.02 last 140.21)
 - open/close 5923 (time 1746070749.72 total 40.02 last 161.70)
 - open/close 7680 (time 1746070759.72 total 50.02 last 175.68)
total: 8000 open/close in 51.76 seconds: 154.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 27 seconds
lru_size = 4006
4001
ls -la is 69% faster with lru resize enabled
 - unlinked 0 (time 1746070796 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second