== sanity test 124b: lru resize (performance test) ================================================================================= 18:45:08 (1787870708)
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 841 (time 1787870722.35 total 10.00 last 84.08)
 - open/close 1631 (time 1787870732.36 total 20.01 last 78.94)
 - open/close 2487 (time 1787870742.36 total 30.01 last 85.58)
 - open/close 3333 (time 1787870752.36 total 40.02 last 84.57)
 - open/close 4169 (time 1787870762.38 total 50.03 last 83.51)
 - open/close 4963 (time 1787870772.38 total 60.03 last 79.40)
 - open/close 5775 (time 1787870782.38 total 70.03 last 81.18)
 - open/close 6486 (time 1787870792.39 total 80.04 last 71.01)
 - open/close 7336 (time 1787870802.39 total 90.04 last 84.99)
total: 8000 open/close in 98.80 seconds: 80.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 150 seconds
lru_size = 400
400
 - unlinked 0 (time 1787870971 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 832 (time 1787871080.46 total 10.01 last 83.08)
 - open/close 1708 (time 1787871090.46 total 20.01 last 87.60)
 - open/close 2621 (time 1787871100.46 total 30.02 last 91.25)
 - open/close 3497 (time 1787871110.47 total 40.03 last 87.48)
 - open/close 4374 (time 1787871120.49 total 50.05 last 87.57)
 - open/close 5252 (time 1787871130.49 total 60.05 last 87.78)
 - open/close 6062 (time 1787871140.51 total 70.07 last 80.87)
 - open/close 6949 (time 1787871150.51 total 80.07 last 88.65)
 - open/close 7844 (time 1787871160.52 total 90.08 last 89.41)
total: 8000 open/close in 91.69 seconds: 87.25 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1787871255 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second