== sanity test 124b: lru resize (performance test) ================================================================================= 06:09:18 (1784196558)
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 650 (time 1784196573.19 total 10.00 last 64.99)
 - open/close 1408 (time 1784196583.20 total 20.01 last 75.73)
 - open/close 2141 (time 1784196593.21 total 30.02 last 73.26)
 - open/close 2774 (time 1784196603.22 total 40.03 last 63.22)
 - open/close 3565 (time 1784196613.22 total 50.03 last 79.09)
 - open/close 4206 (time 1784196623.24 total 60.05 last 63.98)
 - open/close 4886 (time 1784196633.26 total 70.07 last 67.86)
 - open/close 5612 (time 1784196643.26 total 80.07 last 72.57)
 - open/close 6348 (time 1784196653.27 total 90.09 last 73.52)
 - open/close 7069 (time 1784196663.28 total 100.09 last 72.03)
 - open/close 7812 (time 1784196673.30 total 110.11 last 74.19)
total: 8000 open/close in 112.93 seconds: 70.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 157 seconds
lru_size = 400
400
 - unlinked 0 (time 1784196844 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 746 (time 1784196951.47 total 10.01 last 74.52)
 - open/close 1661 (time 1784196961.48 total 20.03 last 91.34)
 - open/close 2623 (time 1784196971.48 total 30.03 last 96.19)
 - open/close 3578 (time 1784196981.49 total 40.03 last 95.45)
 - open/close 4532 (time 1784196991.50 total 50.04 last 95.35)
 - open/close 5412 (time 1784197001.50 total 60.05 last 87.94)
 - open/close 6373 (time 1784197011.50 total 70.05 last 96.08)
 - open/close 7281 (time 1784197021.51 total 80.05 last 90.79)
total: 8000 open/close in 87.33 seconds: 91.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 75 seconds
lru_size = 4006
4001
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1784197120 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second