== sanity test 124b: lru resize (performance test) ================================================================================= 05:06:46 (1787389606)
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 808 (time 1787389621.28 total 10.00 last 80.78)
 - open/close 1640 (time 1787389631.29 total 20.01 last 83.15)
 - open/close 2368 (time 1787389641.29 total 30.01 last 72.76)
 - open/close 3147 (time 1787389651.30 total 40.02 last 77.84)
 - open/close 3923 (time 1787389661.31 total 50.03 last 77.55)
 - open/close 4734 (time 1787389671.32 total 60.04 last 81.01)
 - open/close 5488 (time 1787389681.33 total 70.05 last 75.33)
 - open/close 6231 (time 1787389691.36 total 80.07 last 74.10)
 - open/close 6972 (time 1787389701.36 total 90.08 last 74.07)
 - open/close 7754 (time 1787389711.38 total 100.09 last 78.08)
total: 8000 open/close in 103.22 seconds: 77.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 166 seconds
lru_size = 400
400
 - unlinked 0 (time 1787389890 ; total 0 ; last 0)
total: 8000 unlinks in 105 seconds: 76.190475 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 800 (time 1787390010.19 total 10.01 last 79.95)
 - open/close 1537 (time 1787390020.20 total 20.02 last 73.63)
 - open/close 2246 (time 1787390030.23 total 30.05 last 70.68)
 - open/close 2928 (time 1787390040.24 total 40.05 last 68.15)
 - open/close 3594 (time 1787390050.25 total 50.06 last 66.56)
 - open/close 4336 (time 1787390060.26 total 60.07 last 74.11)
 - open/close 5136 (time 1787390070.26 total 70.07 last 80.00)
 - open/close 5920 (time 1787390080.27 total 80.08 last 78.36)
 - open/close 6802 (time 1787390090.27 total 90.08 last 88.17)
 - open/close 7621 (time 1787390100.27 total 100.09 last 81.85)
total: 8000 open/close in 104.69 seconds: 76.41 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787390210 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second