== sanity test 124b: lru resize (performance test) ================================================================================= 23:16:15 (1789787775)
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 813 (time 1789787790.46 total 10.01 last 81.19)
 - open/close 1626 (time 1789787800.47 total 20.02 last 81.24)
 - open/close 2300 (time 1789787810.48 total 30.03 last 67.32)
 - open/close 3064 (time 1789787820.48 total 40.03 last 76.39)
 - open/close 3659 (time 1789787830.49 total 50.04 last 59.49)
 - open/close 4254 (time 1789787840.50 total 60.05 last 59.43)
 - open/close 5188 (time 1789787850.52 total 70.07 last 93.24)
 - open/close 6049 (time 1789787860.52 total 80.07 last 86.04)
 - open/close 6960 (time 1789787870.52 total 90.07 last 91.10)
 - open/close 7847 (time 1789787880.55 total 100.10 last 88.49)
total: 8000 open/close in 101.93 seconds: 78.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1789788046 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 860 (time 1789788155.86 total 10.02 last 85.83)
 - open/close 1670 (time 1789788165.86 total 20.02 last 81.00)
 - open/close 2540 (time 1789788175.87 total 30.03 last 86.94)
 - open/close 3310 (time 1789788185.90 total 40.05 last 76.79)
 - open/close 3990 (time 1789788195.90 total 50.06 last 67.98)
 - open/close 4683 (time 1789788205.90 total 60.06 last 69.29)
 - open/close 5614 (time 1789788215.90 total 70.06 last 93.08)
 - open/close 6404 (time 1789788225.92 total 80.08 last 78.86)
 - open/close 7153 (time 1789788235.94 total 90.09 last 74.79)
total: 8000 open/close in 99.99 seconds: 80.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 4006
4001
ls -la is 35% faster with lru resize enabled
 - unlinked 0 (time 1789788367 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second