== sanity test 124b: lru resize (performance test) ================================================================================= 01:20:30 (1789276830)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 675 (time 1789276846.33 total 10.02 last 67.35)
 - open/close 1424 (time 1789276856.35 total 20.04 last 74.76)
 - open/close 2120 (time 1789276866.35 total 30.05 last 69.56)
 - open/close 2832 (time 1789276876.36 total 40.06 last 71.13)
 - open/close 3592 (time 1789276886.37 total 50.06 last 75.96)
 - open/close 4370 (time 1789276896.37 total 60.06 last 77.78)
 - open/close 5168 (time 1789276906.38 total 70.08 last 79.70)
 - open/close 5969 (time 1789276916.39 total 80.08 last 80.07)
 - open/close 6581 (time 1789276926.40 total 90.10 last 61.10)
 - open/close 7184 (time 1789276936.41 total 100.10 last 60.29)
 - open/close 7635 (time 1789276946.43 total 110.12 last 45.01)
total: 8000 open/close in 118.62 seconds: 67.44 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 107 seconds
lru_size = 400
400
 - unlinked 0 (time 1789277075 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 675 (time 1789277192.30 total 10.01 last 67.45)
 - open/close 1495 (time 1789277202.30 total 20.01 last 81.97)
 - open/close 2323 (time 1789277212.31 total 30.02 last 82.72)
 - open/close 2929 (time 1789277222.32 total 40.03 last 60.56)
 - open/close 3628 (time 1789277232.34 total 50.05 last 69.77)
 - open/close 4390 (time 1789277242.34 total 60.05 last 76.18)
 - open/close 5218 (time 1789277252.34 total 70.05 last 82.78)
 - open/close 6066 (time 1789277262.35 total 80.05 last 84.80)
 - open/close 6925 (time 1789277272.35 total 90.06 last 85.85)
 - open/close 7783 (time 1789277282.35 total 100.06 last 85.79)
total: 8000 open/close in 102.85 seconds: 77.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4052
3955
ls -la is 17% faster with lru resize enabled
 - unlinked 0 (time 1789277395 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second