== sanity test 124b: lru resize (performance test) ================================================================================= 03:51:35 (1787471495)
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 822 (time 1787471509.74 total 10.02 last 82.06)
 - open/close 1558 (time 1787471519.75 total 20.03 last 73.54)
 - open/close 2296 (time 1787471529.77 total 30.04 last 73.69)
 - open/close 3182 (time 1787471539.78 total 40.05 last 88.49)
 - open/close 3977 (time 1787471549.78 total 50.06 last 79.46)
 - open/close 4829 (time 1787471559.79 total 60.06 last 85.16)
 - open/close 5727 (time 1787471569.80 total 70.07 last 89.73)
 - open/close 6761 (time 1787471579.80 total 80.07 last 103.36)
 - open/close 7737 (time 1787471589.80 total 90.08 last 97.58)
total: 8000 open/close in 93.05 seconds: 85.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 142 seconds
lru_size = 400
400
 - unlinked 0 (time 1787471748 ; total 0 ; last 0)
total: 8000 unlinks in 87 seconds: 91.954025 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1040 (time 1787471849.91 total 10.01 last 103.94)
 - open/close 1829 (time 1787471859.93 total 20.02 last 78.78)
 - open/close 2747 (time 1787471869.93 total 30.02 last 91.79)
 - open/close 3598 (time 1787471879.96 total 40.05 last 84.85)
 - open/close 4565 (time 1787471889.97 total 50.06 last 96.62)
 - open/close 5522 (time 1787471899.97 total 60.06 last 95.66)
 - open/close 6544 (time 1787471909.98 total 70.07 last 102.13)
 - open/close 7418 (time 1787471919.98 total 80.08 last 87.37)
total: 8000 open/close in 86.17 seconds: 92.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 72 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1787472018 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second