== sanity test 124b: lru resize (performance test) ================================================================================= 16:43:58 (1746132238)
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 1384 (time 1746132251.00 total 10.00 last 138.37)
 - open/close 2927 (time 1746132261.01 total 20.01 last 154.23)
 - open/close 4337 (time 1746132271.01 total 30.01 last 140.96)
 - open/close 5983 (time 1746132281.01 total 40.02 last 164.51)
 - open/close 7644 (time 1746132291.02 total 50.02 last 166.03)
total: 8000 open/close in 51.56 seconds: 155.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 72 seconds
lru_size = 400
400
 - unlinked 0 (time 1746132368 ; total 0 ; last 0)
total: 8000 unlinks in 33 seconds: 242.424240 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1383 (time 1746132413.16 total 10.01 last 138.20)
 - open/close 2999 (time 1746132423.17 total 20.01 last 161.57)
 - open/close 4507 (time 1746132433.17 total 30.01 last 150.76)
 - open/close 5854 (time 1746132443.17 total 40.02 last 134.65)
 - open/close 7156 (time 1746132453.18 total 50.02 last 130.13)
total: 8000 open/close in 56.08 seconds: 142.66 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 33 seconds
lru_size = 4052
3955
ls -la is 54% faster with lru resize enabled
 - unlinked 0 (time 1746132500 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second