== sanity test 124b: lru resize (performance test) ================================================================================= 22:29:31 (1746152971)
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 1203 (time 1746152984.61 total 10.01 last 120.23)
 - open/close 2232 (time 1746152994.62 total 20.01 last 102.88)
 - open/close 3348 (time 1746153004.62 total 30.01 last 111.53)
 - open/close 4414 (time 1746153014.62 total 40.02 last 106.59)
 - open/close 5485 (time 1746153024.65 total 50.04 last 106.82)
 - open/close 6488 (time 1746153034.65 total 60.05 last 100.26)
 - open/close 7631 (time 1746153044.66 total 70.05 last 114.22)
total: 8000 open/close in 73.44 seconds: 108.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 173 seconds
lru_size = 400
400
 - unlinked 0 (time 1746153226 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1070 (time 1746153306.99 total 10.00 last 107.00)
 - open/close 2218 (time 1746153316.99 total 20.00 last 114.78)
 - open/close 3403 (time 1746153327.00 total 30.01 last 118.44)
 - open/close 4452 (time 1746153337.00 total 40.01 last 104.85)
 - open/close 5568 (time 1746153347.01 total 50.02 last 111.54)
 - open/close 6631 (time 1746153357.01 total 60.02 last 106.29)
 - open/close 7714 (time 1746153367.05 total 70.06 last 107.88)
total: 8000 open/close in 72.61 seconds: 110.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 41 seconds
lru_size = 4006
4001
ls -la is 76% faster with lru resize enabled
 - unlinked 0 (time 1746153421 ; total 0 ; last 0)
total: 8000 unlinks in 44 seconds: 181.818176 unlinks/second