== sanity test 124b: lru resize (performance test) ================================================================================= 01:01:10 (1789448470)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 888 (time 1789448485.01 total 10.00 last 88.80)
 - open/close 1761 (time 1789448495.01 total 20.00 last 87.30)
 - open/close 2640 (time 1789448505.02 total 30.01 last 87.84)
 - open/close 3451 (time 1789448515.02 total 40.01 last 81.10)
 - open/close 4312 (time 1789448525.03 total 50.01 last 86.04)
 - open/close 5018 (time 1789448535.03 total 60.02 last 70.57)
 - open/close 5756 (time 1789448545.05 total 70.03 last 73.70)
 - open/close 6464 (time 1789448555.06 total 80.04 last 70.74)
 - open/close 7219 (time 1789448565.06 total 90.05 last 75.47)
 - open/close 7992 (time 1789448575.07 total 100.05 last 77.24)
total: 8000 open/close in 100.14 seconds: 79.89 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1789448736 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 867 (time 1789448843.03 total 10.01 last 86.65)
 - open/close 1627 (time 1789448853.03 total 20.01 last 75.99)
 - open/close 2524 (time 1789448863.03 total 30.01 last 89.69)
 - open/close 3382 (time 1789448873.03 total 40.01 last 85.80)
 - open/close 4257 (time 1789448883.04 total 50.02 last 87.43)
 - open/close 5006 (time 1789448893.04 total 60.02 last 74.90)
 - open/close 5831 (time 1789448903.05 total 70.03 last 82.39)
 - open/close 6644 (time 1789448913.06 total 80.04 last 81.26)
 - open/close 7571 (time 1789448923.07 total 90.04 last 92.63)
total: 8000 open/close in 94.62 seconds: 84.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1789449026 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second