== sanity test 124b: lru resize (performance test) ================================================================================= 01:38:15 (1788845895)
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 914 (time 1788845909.04 total 10.00 last 91.36)
 - open/close 1781 (time 1788845919.04 total 20.01 last 86.68)
 - open/close 2824 (time 1788845929.05 total 30.01 last 104.25)
 - open/close 3779 (time 1788845939.05 total 40.02 last 95.45)
 - open/close 4771 (time 1788845949.05 total 50.02 last 99.19)
 - open/close 5634 (time 1788845959.06 total 60.03 last 86.23)
 - open/close 6498 (time 1788845969.07 total 70.04 last 86.29)
 - open/close 7310 (time 1788845979.07 total 80.04 last 81.19)
total: 8000 open/close in 88.95 seconds: 89.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 145 seconds
lru_size = 400
400
 - unlinked 0 (time 1788846145 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 754 (time 1788846257.40 total 10.02 last 75.25)
 - open/close 1585 (time 1788846267.40 total 20.02 last 83.09)
 - open/close 2441 (time 1788846277.41 total 30.03 last 85.53)
 - open/close 3167 (time 1788846287.41 total 40.04 last 72.57)
 - open/close 3953 (time 1788846297.42 total 50.04 last 78.55)
 - open/close 4817 (time 1788846307.42 total 60.04 last 86.40)
 - open/close 5580 (time 1788846317.43 total 70.05 last 76.22)
 - open/close 6247 (time 1788846327.43 total 80.06 last 66.69)
 - open/close 7111 (time 1788846337.45 total 90.07 last 86.31)
total: 8000 open/close in 99.75 seconds: 80.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1788846459 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second