== sanity test 124b: lru resize (performance test) ================================================================================= 22:25:01 (1789093501)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 840 (time 1789093516.97 total 10.01 last 83.92)
 - open/close 1600 (time 1789093526.97 total 20.01 last 75.98)
 - open/close 2524 (time 1789093536.99 total 30.03 last 92.26)
 - open/close 3337 (time 1789093546.99 total 40.03 last 81.29)
 - open/close 4206 (time 1789093556.99 total 50.03 last 86.90)
 - open/close 5131 (time 1789093566.99 total 60.03 last 92.45)
 - open/close 5859 (time 1789093577.01 total 70.05 last 72.69)
 - open/close 6426 (time 1789093587.02 total 80.06 last 56.64)
 - open/close 7247 (time 1789093597.02 total 90.06 last 82.10)
total: 8000 open/close in 99.56 seconds: 80.36 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 161 seconds
lru_size = 400
400
 - unlinked 0 (time 1789093778 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 829 (time 1789093882.35 total 10.01 last 82.81)
 - open/close 1759 (time 1789093892.36 total 20.02 last 92.94)
 - open/close 2739 (time 1789093902.37 total 30.02 last 97.94)
 - open/close 3667 (time 1789093912.37 total 40.03 last 92.73)
 - open/close 4498 (time 1789093922.38 total 50.04 last 83.05)
 - open/close 5066 (time 1789093932.39 total 60.04 last 56.77)
 - open/close 5726 (time 1789093942.39 total 70.05 last 65.95)
 - open/close 6675 (time 1789093952.40 total 80.06 last 94.82)
 - open/close 7725 (time 1789093962.42 total 90.07 last 104.83)
total: 8000 open/close in 92.27 seconds: 86.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1789094080 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second