== sanity test 124b: lru resize (performance test) ================================================================================= 00:29:37 (1787718577)
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 843 (time 1787718592.67 total 10.02 last 84.17)
 - open/close 1677 (time 1787718602.67 total 20.02 last 83.39)
 - open/close 2547 (time 1787718612.68 total 30.02 last 86.97)
 - open/close 3399 (time 1787718622.68 total 40.03 last 85.15)
 - open/close 4217 (time 1787718632.71 total 50.05 last 81.59)
 - open/close 5090 (time 1787718642.72 total 60.06 last 87.24)
 - open/close 5908 (time 1787718652.72 total 70.06 last 81.80)
 - open/close 6688 (time 1787718662.72 total 80.06 last 77.96)
 - open/close 7555 (time 1787718672.72 total 90.07 last 86.68)
total: 8000 open/close in 96.13 seconds: 83.22 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 175 seconds
lru_size = 400
400
 - unlinked 0 (time 1787718865 ; total 1 ; last 1)
total: 8000 unlinks in 109 seconds: 73.394493 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 788 (time 1787718987.90 total 10.00 last 78.77)
 - open/close 1568 (time 1787718997.91 total 20.02 last 77.91)
 - open/close 2365 (time 1787719007.92 total 30.02 last 79.66)
 - open/close 3021 (time 1787719017.93 total 40.03 last 65.52)
 - open/close 3547 (time 1787719027.94 total 50.04 last 52.57)
 - open/close 4229 (time 1787719037.95 total 60.05 last 68.12)
 - open/close 4927 (time 1787719047.95 total 70.05 last 69.78)
 - open/close 5712 (time 1787719057.97 total 80.07 last 78.39)
 - open/close 6551 (time 1787719067.97 total 90.07 last 83.84)
 - open/close 7376 (time 1787719078.01 total 100.11 last 82.22)
total: 8000 open/close in 107.59 seconds: 74.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4006
4001
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1787719192 ; total 0 ; last 0)
total: 8000 unlinks in 87 seconds: 91.954025 unlinks/second