== sanity test 124b: lru resize (performance test) ================================================================================= 05:25:49 (1789032349)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 820 (time 1789032363.85 total 10.01 last 81.95)
 - open/close 1732 (time 1789032373.85 total 20.01 last 91.16)
 - open/close 2643 (time 1789032383.86 total 30.02 last 91.00)
 - open/close 3534 (time 1789032393.87 total 40.02 last 89.08)
 - open/close 4429 (time 1789032403.88 total 50.03 last 89.41)
 - open/close 5248 (time 1789032413.88 total 60.04 last 81.83)
 - open/close 6121 (time 1789032423.89 total 70.05 last 87.25)
 - open/close 7029 (time 1789032433.89 total 80.05 last 90.77)
 - open/close 7913 (time 1789032443.89 total 90.05 last 88.40)
total: 8000 open/close in 91.19 seconds: 87.72 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 146 seconds
lru_size = 400
400
 - unlinked 0 (time 1789032601 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 858 (time 1789032711.81 total 10.00 last 85.78)
 - open/close 1527 (time 1789032721.81 total 20.01 last 66.87)
 - open/close 2378 (time 1789032731.82 total 30.01 last 85.06)
 - open/close 3128 (time 1789032741.83 total 40.02 last 74.92)
 - open/close 3915 (time 1789032751.83 total 50.03 last 78.66)
 - open/close 4803 (time 1789032761.84 total 60.03 last 88.75)
 - open/close 5584 (time 1789032771.84 total 70.04 last 78.05)
 - open/close 6403 (time 1789032781.85 total 80.04 last 81.88)
 - open/close 7257 (time 1789032791.87 total 90.07 last 85.17)
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: 74 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1789032891 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second