== sanity test 124b: lru resize (performance test) ================================================================================= 19:29:52 (1787614192)
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 815 (time 1787614207.51 total 10.00 last 81.47)
 - open/close 1493 (time 1787614217.52 total 20.01 last 67.75)
 - open/close 2239 (time 1787614227.52 total 30.02 last 74.57)
 - open/close 2954 (time 1787614237.53 total 40.02 last 71.47)
 - open/close 3716 (time 1787614247.53 total 50.02 last 76.17)
 - open/close 4439 (time 1787614257.54 total 60.03 last 72.27)
 - open/close 5183 (time 1787614267.55 total 70.04 last 74.29)
 - open/close 5994 (time 1787614277.56 total 80.05 last 81.06)
 - open/close 6740 (time 1787614287.57 total 90.06 last 74.50)
 - open/close 7449 (time 1787614297.58 total 100.07 last 70.84)
total: 8000 open/close in 107.45 seconds: 74.45 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 168 seconds
lru_size = 400
400
 - unlinked 0 (time 1787614483 ; total 0 ; last 0)
total: 8000 unlinks in 102 seconds: 78.431374 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 878 (time 1787614600.01 total 10.01 last 87.72)
 - open/close 1761 (time 1787614610.01 total 20.01 last 88.28)
 - open/close 2540 (time 1787614620.03 total 30.03 last 77.78)
 - open/close 3339 (time 1787614630.04 total 40.04 last 79.78)
 - open/close 4155 (time 1787614640.04 total 50.04 last 81.59)
 - open/close 4957 (time 1787614650.04 total 60.04 last 80.19)
 - open/close 5678 (time 1787614660.05 total 70.05 last 72.03)
 - open/close 6455 (time 1787614670.06 total 80.06 last 77.62)
 - open/close 7230 (time 1787614680.07 total 90.07 last 77.47)
total: 8000 open/close in 98.36 seconds: 81.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787614800 ; total 0 ; last 0)
total: 8000 unlinks in 80 seconds: 100.000000 unlinks/second