== sanity test 124b: lru resize (performance test) ================================================================================= 14:27:45 (1787855265)
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 894 (time 1787855280.31 total 10.01 last 89.31)
 - open/close 1674 (time 1787855290.32 total 20.02 last 77.92)
 - open/close 2478 (time 1787855300.33 total 30.03 last 80.33)
 - open/close 3297 (time 1787855310.33 total 40.03 last 81.89)
 - open/close 4100 (time 1787855320.33 total 50.03 last 80.29)
 - open/close 4903 (time 1787855330.34 total 60.04 last 80.25)
 - open/close 5715 (time 1787855340.35 total 70.04 last 81.16)
 - open/close 6517 (time 1787855350.35 total 80.05 last 80.17)
 - open/close 7335 (time 1787855360.35 total 90.05 last 81.80)
total: 8000 open/close in 97.64 seconds: 81.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1787855538 ; total 0 ; last 0)
total: 8000 unlinks in 119 seconds: 67.226891 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 826 (time 1787855674.41 total 10.01 last 82.53)
 - open/close 1697 (time 1787855684.41 total 20.01 last 87.10)
 - open/close 2568 (time 1787855694.41 total 30.01 last 87.09)
 - open/close 3398 (time 1787855704.42 total 40.02 last 82.92)
 - open/close 4198 (time 1787855714.44 total 50.03 last 79.87)
 - open/close 4992 (time 1787855724.44 total 60.04 last 79.34)
 - open/close 5792 (time 1787855734.45 total 70.05 last 79.95)
 - open/close 6541 (time 1787855744.46 total 80.05 last 74.85)
 - open/close 7319 (time 1787855754.46 total 90.05 last 77.80)
total: 8000 open/close in 98.40 seconds: 81.30 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1787855872 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second