== sanity test 124b: lru resize (performance test) ================================================================================= 19:55:56 (1746143756)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1334 (time 1746143769.16 total 10.00 last 133.37)
 - open/close 2706 (time 1746143779.18 total 20.02 last 137.01)
 - open/close 4016 (time 1746143789.18 total 30.02 last 130.94)
 - open/close 5400 (time 1746143799.19 total 40.03 last 138.32)
 - open/close 6830 (time 1746143809.19 total 50.03 last 142.96)
total: 8000 open/close in 58.32 seconds: 137.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 400
400
 - unlinked 0 (time 1746143905 ; total 0 ; last 0)
total: 8000 unlinks in 50 seconds: 160.000000 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1296 (time 1746143968.07 total 10.01 last 129.52)
 - open/close 2452 (time 1746143978.08 total 20.01 last 115.53)
 - open/close 3836 (time 1746143988.08 total 30.02 last 138.33)
 - open/close 5209 (time 1746143998.09 total 40.03 last 137.17)
 - open/close 6567 (time 1746144008.09 total 50.03 last 135.79)
 - open/close 7924 (time 1746144018.10 total 60.03 last 135.59)
total: 8000 open/close in 60.62 seconds: 131.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 43 seconds
lru_size = 4052
3955
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1746144074 ; total 0 ; last 0)
total: 8000 unlinks in 38 seconds: 210.526321 unlinks/second