== sanity test 124b: lru resize (performance test) ================================================================================= 15:48:39 (1787860119)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1021 (time 1787860134.65 total 10.00 last 102.06)
 - open/close 1910 (time 1787860144.66 total 20.01 last 88.81)
 - open/close 2912 (time 1787860154.66 total 30.02 last 100.18)
 - open/close 3920 (time 1787860164.66 total 40.02 last 100.77)
 - open/close 4857 (time 1787860174.66 total 50.02 last 93.69)
 - open/close 5793 (time 1787860184.67 total 60.03 last 93.56)
 - open/close 6775 (time 1787860194.68 total 70.04 last 98.10)
 - open/close 7704 (time 1787860204.69 total 80.05 last 92.81)
total: 8000 open/close in 82.89 seconds: 96.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 140 seconds
lru_size = 400
400
 - unlinked 0 (time 1787860359 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 763 (time 1787860475.19 total 10.01 last 76.24)
 - open/close 1514 (time 1787860485.19 total 20.01 last 75.07)
 - open/close 2484 (time 1787860495.20 total 30.02 last 96.94)
 - open/close 3430 (time 1787860505.20 total 40.02 last 94.56)
 - open/close 4213 (time 1787860515.21 total 50.03 last 78.25)
 - open/close 4993 (time 1787860525.22 total 60.03 last 77.95)
 - open/close 5643 (time 1787860535.23 total 70.04 last 64.93)
 - open/close 6171 (time 1787860545.23 total 80.05 last 52.79)
 - open/close 7064 (time 1787860555.23 total 90.05 last 89.25)
 - open/close 7991 (time 1787860565.24 total 100.06 last 92.66)
total: 8000 open/close in 100.15 seconds: 79.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 36% faster with lru resize enabled
 - unlinked 0 (time 1787860674 ; total 0 ; last 0)
total: 8000 unlinks in 49 seconds: 163.265305 unlinks/second