== sanity test 124b: lru resize (performance test) ================================================================================= 00:12:06 (1739509926)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1783 (time 1739509939.47 total 10.00 last 178.21)
 - open/close 3698 (time 1739509949.48 total 20.01 last 191.40)
 - open/close 5436 (time 1739509959.49 total 30.02 last 173.68)
 - open/close 7209 (time 1739509969.49 total 40.02 last 177.25)
total: 8000 open/close in 44.38 seconds: 180.25 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 400
400
 - unlinked 0 (time 1739510055 ; total 0 ; last 0)
total: 8000 unlinks in 30 seconds: 266.666656 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1478 (time 1739510097.87 total 10.00 last 147.75)
 - open/close 3046 (time 1739510107.88 total 20.01 last 156.72)
 - open/close 4640 (time 1739510117.88 total 30.01 last 159.39)
 - open/close 6216 (time 1739510127.88 total 40.01 last 157.54)
 - open/close 7735 (time 1739510137.88 total 50.01 last 151.87)
total: 8000 open/close in 51.69 seconds: 154.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 36 seconds
lru_size = 4052
3955
ls -la is 53% faster with lru resize enabled
 - unlinked 0 (time 1739510184 ; total 0 ; last 0)
total: 8000 unlinks in 27 seconds: 296.296295 unlinks/second