== sanity test 124b: lru resize (performance test) ================================================================================= 01:02:21 (1787374941)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 669 (time 1787374957.19 total 10.02 last 66.75)
 - open/close 1426 (time 1787374967.19 total 20.02 last 75.69)
 - open/close 2220 (time 1787374977.19 total 30.03 last 79.34)
 - open/close 3086 (time 1787374987.20 total 40.04 last 86.57)
 - open/close 3941 (time 1787374997.20 total 50.04 last 85.44)
 - open/close 4790 (time 1787375007.21 total 60.04 last 84.89)
 - open/close 5537 (time 1787375017.21 total 70.05 last 74.64)
 - open/close 6348 (time 1787375027.22 total 80.06 last 81.02)
 - open/close 7178 (time 1787375037.23 total 90.07 last 82.94)
 - open/close 7911 (time 1787375047.24 total 100.08 last 73.24)
total: 8000 open/close in 101.00 seconds: 79.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 167 seconds
lru_size = 400
400
 - unlinked 0 (time 1787375225 ; total 0 ; last 0)
total: 8000 unlinks in 104 seconds: 76.923080 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 667 (time 1787375345.45 total 10.01 last 66.66)
 - open/close 1272 (time 1787375355.45 total 20.01 last 60.47)
 - open/close 1792 (time 1787375365.46 total 30.02 last 51.96)
 - open/close 2402 (time 1787375375.47 total 40.03 last 60.95)
 - open/close 3004 (time 1787375385.48 total 50.03 last 60.15)
 - open/close 3747 (time 1787375395.48 total 60.04 last 74.28)
 - open/close 4600 (time 1787375405.49 total 70.04 last 85.24)
 - open/close 5429 (time 1787375415.49 total 80.05 last 82.89)
 - open/close 6309 (time 1787375425.49 total 90.05 last 87.97)
 - open/close 7160 (time 1787375435.49 total 100.05 last 85.08)
total: 8000 open/close in 109.64 seconds: 72.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1787375567 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second