== sanity test 124b: lru resize (performance test) ================================================================================= 04:41:45 (1790930505)
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 883 (time 1790930519.38 total 10.01 last 88.24)
 - open/close 1726 (time 1790930529.39 total 20.01 last 84.24)
 - open/close 2580 (time 1790930539.40 total 30.02 last 85.32)
 - open/close 3438 (time 1790930549.40 total 40.03 last 85.77)
 - open/close 4183 (time 1790930559.42 total 50.04 last 74.38)
 - open/close 5027 (time 1790930569.42 total 60.05 last 84.38)
 - open/close 5896 (time 1790930579.44 total 70.06 last 86.80)
 - open/close 6711 (time 1790930589.44 total 80.06 last 81.47)
 - open/close 7571 (time 1790930599.45 total 90.07 last 85.93)
total: 8000 open/close in 95.43 seconds: 83.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 146 seconds
lru_size = 400
400
 - unlinked 0 (time 1790930760 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 885 (time 1790930869.55 total 10.01 last 88.43)
 - open/close 1807 (time 1790930879.55 total 20.01 last 92.18)
 - open/close 2670 (time 1790930889.56 total 30.02 last 86.25)
 - open/close 3522 (time 1790930899.56 total 40.02 last 85.16)
 - open/close 4404 (time 1790930909.57 total 50.03 last 88.14)
 - open/close 5295 (time 1790930919.58 total 60.03 last 89.05)
 - open/close 6171 (time 1790930929.59 total 70.05 last 87.48)
 - open/close 7033 (time 1790930939.60 total 80.06 last 86.13)
 - open/close 7862 (time 1790930949.61 total 90.06 last 82.82)
total: 8000 open/close in 91.68 seconds: 87.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1790931050 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second