== sanity test 124b: lru resize (performance test) ================================================================================= 10:02:22 (1787752942)
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 1024 (time 1787752956.89 total 10.01 last 102.30)
 - open/close 1884 (time 1787752966.89 total 20.01 last 85.97)
 - open/close 2883 (time 1787752976.89 total 30.02 last 99.87)
 - open/close 3844 (time 1787752986.89 total 40.02 last 96.08)
 - open/close 4615 (time 1787752996.90 total 50.02 last 77.10)
 - open/close 5222 (time 1787753006.90 total 60.03 last 60.65)
 - open/close 6036 (time 1787753016.91 total 70.03 last 81.35)
 - open/close 6925 (time 1787753026.92 total 80.04 last 88.80)
 - open/close 7684 (time 1787753036.92 total 90.05 last 75.87)
total: 8000 open/close in 94.34 seconds: 84.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 400
400
 - unlinked 0 (time 1787753154 ; total 0 ; last 0)
total: 8000 unlinks in 106 seconds: 75.471695 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 944 (time 1787753275.41 total 10.01 last 94.26)
 - open/close 1652 (time 1787753285.41 total 20.02 last 70.76)
 - open/close 2491 (time 1787753295.43 total 30.03 last 83.80)
 - open/close 3188 (time 1787753305.43 total 40.04 last 69.67)
 - open/close 3967 (time 1787753315.44 total 50.05 last 77.79)
 - open/close 4672 (time 1787753325.45 total 60.05 last 70.49)
 - open/close 5531 (time 1787753335.46 total 70.06 last 85.82)
 - open/close 6430 (time 1787753345.46 total 80.06 last 89.90)
 - open/close 7322 (time 1787753355.46 total 90.07 last 89.15)
total: 8000 open/close in 98.56 seconds: 81.17 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 102 seconds
lru_size = 4052
3955
ls -la is 3% slower with lru resize enabled
 - unlinked 0 (time 1787753490 ; total 0 ; last 0)
total: 8000 unlinks in 84 seconds: 95.238098 unlinks/second