== sanity test 124b: lru resize (performance test) ================================================================================= 13:49:08 (1779212948)
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 1231 (time 1779212960.61 total 10.00 last 123.08)
 - open/close 2591 (time 1779212970.61 total 20.00 last 136.00)
 - open/close 4034 (time 1779212980.61 total 30.00 last 144.30)
 - open/close 5347 (time 1779212990.61 total 40.00 last 131.27)
 - open/close 6724 (time 1779213000.61 total 50.01 last 137.68)
total: 8000 open/close in 57.36 seconds: 139.47 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 400
400
 - unlinked 0 (time 1779213095 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2099 (time 1779213136.30 total 10.00 last 209.83)
 - open/close 4014 (time 1779213146.30 total 20.01 last 191.46)
 - open/close 6360 (time 1779213156.31 total 30.01 last 234.42)
total: 8000 open/close in 37.54 seconds: 213.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 42 seconds
lru_size = 4006
4001
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1779213214 ; total 0 ; last 0)
total: 8000 unlinks in 19 seconds: 421.052643 unlinks/second