== sanity test 124b: lru resize (performance test) ================================================================================= 13:45:07 (1787593507)
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 829 (time 1787593522.67 total 10.01 last 82.86)
 - open/close 1583 (time 1787593532.68 total 20.01 last 75.36)
 - open/close 2284 (time 1787593542.69 total 30.02 last 70.06)
 - open/close 2919 (time 1787593552.69 total 40.02 last 63.50)
 - open/close 3387 (time 1787593562.71 total 50.04 last 46.68)
 - open/close 3902 (time 1787593572.72 total 60.05 last 51.48)
 - open/close 4631 (time 1787593582.72 total 70.05 last 72.88)
 - open/close 5348 (time 1787593592.74 total 80.07 last 71.57)
 - open/close 6118 (time 1787593602.74 total 90.07 last 76.94)
 - open/close 6943 (time 1787593612.75 total 100.08 last 82.43)
 - open/close 7755 (time 1787593622.76 total 110.09 last 81.14)
total: 8000 open/close in 113.47 seconds: 70.51 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 155 seconds
lru_size = 400
400
 - unlinked 0 (time 1787593790 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 800 (time 1787593909.01 total 10.01 last 79.94)
 - open/close 1530 (time 1787593919.01 total 20.01 last 72.98)
 - open/close 2255 (time 1787593929.02 total 30.02 last 72.45)
 - open/close 3018 (time 1787593939.03 total 40.03 last 76.19)
 - open/close 3857 (time 1787593949.04 total 50.04 last 83.85)
 - open/close 4619 (time 1787593959.05 total 60.04 last 76.16)
 - open/close 5421 (time 1787593969.05 total 70.05 last 80.16)
 - open/close 6053 (time 1787593979.08 total 80.08 last 63.00)
 - open/close 6706 (time 1787593989.09 total 90.08 last 65.28)
 - open/close 7450 (time 1787593999.09 total 100.09 last 74.35)
total: 8000 open/close in 107.51 seconds: 74.41 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 47% faster with lru resize enabled
 - unlinked 0 (time 1787594111 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second