== sanity test 124b: lru resize (performance test) ================================================================================= 15:42:06 (1763498526)
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 803 (time 1763498541.37 total 10.00 last 80.26)
 - open/close 1525 (time 1763498551.37 total 20.01 last 72.18)
 - open/close 2204 (time 1763498561.37 total 30.01 last 67.88)
 - open/close 2896 (time 1763498571.39 total 40.03 last 69.09)
 - open/close 3688 (time 1763498581.39 total 50.03 last 79.19)
 - open/close 4480 (time 1763498591.39 total 60.03 last 79.20)
 - open/close 5321 (time 1763498601.40 total 70.04 last 84.02)
 - open/close 6141 (time 1763498611.41 total 80.05 last 81.88)
 - open/close 6967 (time 1763498621.42 total 90.06 last 82.55)
 - open/close 7822 (time 1763498631.42 total 100.06 last 85.48)
total: 8000 open/close in 102.17 seconds: 78.30 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1763498779 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 896 (time 1763498885.54 total 10.01 last 89.54)
 - open/close 1758 (time 1763498895.55 total 20.01 last 86.14)
 - open/close 2561 (time 1763498905.56 total 30.02 last 80.23)
 - open/close 3396 (time 1763498915.57 total 40.03 last 83.44)
 - open/close 4278 (time 1763498925.57 total 50.03 last 88.19)
 - open/close 5184 (time 1763498935.58 total 60.04 last 90.52)
 - open/close 6034 (time 1763498945.58 total 70.05 last 84.94)
 - open/close 6827 (time 1763498955.59 total 80.05 last 79.25)
 - open/close 7668 (time 1763498965.60 total 90.07 last 83.99)
total: 8000 open/close in 93.91 seconds: 85.19 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1763499070 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second