== sanity test 124b: lru resize (performance test) ================================================================================= 07:04:25 (1788260665)
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 570 (time 1788260680.59 total 10.01 last 56.97)
 - open/close 1277 (time 1788260690.61 total 20.02 last 70.59)
 - open/close 2109 (time 1788260700.62 total 30.04 last 83.07)
 - open/close 2980 (time 1788260710.63 total 40.04 last 87.06)
 - open/close 3916 (time 1788260720.63 total 50.05 last 93.54)
 - open/close 4830 (time 1788260730.64 total 60.05 last 91.33)
 - open/close 5695 (time 1788260740.65 total 70.06 last 86.43)
 - open/close 6613 (time 1788260750.66 total 80.07 last 91.71)
 - open/close 7450 (time 1788260760.66 total 90.07 last 83.69)
total: 8000 open/close in 96.41 seconds: 82.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 141 seconds
lru_size = 400
400
 - unlinked 0 (time 1788260917 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 887 (time 1788261027.52 total 10.00 last 88.67)
 - open/close 1825 (time 1788261037.53 total 20.02 last 93.68)
 - open/close 2728 (time 1788261047.53 total 30.02 last 90.28)
 - open/close 3545 (time 1788261057.54 total 40.03 last 81.63)
 - open/close 4394 (time 1788261067.55 total 50.03 last 84.85)
 - open/close 5266 (time 1788261077.55 total 60.04 last 87.13)
 - open/close 6087 (time 1788261087.56 total 70.05 last 82.06)
 - open/close 6831 (time 1788261097.56 total 80.05 last 74.37)
 - open/close 7597 (time 1788261107.59 total 90.08 last 76.37)
total: 8000 open/close in 95.26 seconds: 83.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4006
4001
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1788261210 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second