== sanity test 124b: lru resize (performance test) ================================================================================= 11:35:27 (1790782527)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 836 (time 1790782542.46 total 10.00 last 83.57)
 - open/close 1631 (time 1790782552.46 total 20.00 last 79.50)
 - open/close 2560 (time 1790782562.46 total 30.01 last 92.84)
 - open/close 3406 (time 1790782572.48 total 40.02 last 84.48)
 - open/close 4323 (time 1790782582.49 total 50.04 last 91.58)
 - open/close 5152 (time 1790782592.50 total 60.04 last 82.85)
 - open/close 6010 (time 1790782602.51 total 70.05 last 85.71)
 - open/close 6872 (time 1790782612.51 total 80.05 last 86.20)
 - open/close 7600 (time 1790782622.51 total 90.06 last 72.78)
total: 8000 open/close in 94.65 seconds: 84.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 160 seconds
lru_size = 400
400
 - unlinked 0 (time 1790782797 ; total 0 ; last 0)
total: 8000 unlinks in 105 seconds: 76.190475 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 646 (time 1790782918.86 total 10.01 last 64.56)
 - open/close 1313 (time 1790782928.87 total 20.01 last 66.65)
 - open/close 1944 (time 1790782938.88 total 30.02 last 63.06)
 - open/close 2698 (time 1790782948.89 total 40.04 last 75.28)
 - open/close 3515 (time 1790782958.90 total 50.05 last 81.63)
 - open/close 4243 (time 1790782968.92 total 60.06 last 72.67)
 - open/close 4969 (time 1790782978.92 total 70.07 last 72.58)
 - open/close 5760 (time 1790782988.93 total 80.07 last 79.04)
 - open/close 6529 (time 1790782998.93 total 90.08 last 76.86)
 - open/close 7241 (time 1790783008.94 total 100.09 last 71.14)
total: 8000 open/close in 109.41 seconds: 73.12 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1790783123 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second