== sanity test 124b: lru resize (performance test) ================================================================================= 19:27:11 (1788823631)
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 923 (time 1788823647.27 total 10.01 last 92.22)
 - open/close 1754 (time 1788823657.27 total 20.01 last 83.08)
 - open/close 2376 (time 1788823667.28 total 30.01 last 62.20)
 - open/close 2995 (time 1788823677.28 total 40.02 last 61.85)
 - open/close 3602 (time 1788823687.28 total 50.02 last 60.70)
 - open/close 4163 (time 1788823697.29 total 60.02 last 56.09)
 - open/close 4793 (time 1788823707.29 total 70.03 last 62.96)
 - open/close 5576 (time 1788823717.29 total 80.03 last 78.29)
 - open/close 6277 (time 1788823727.30 total 90.03 last 70.08)
 - open/close 7160 (time 1788823737.30 total 100.04 last 88.23)
 - open/close 7977 (time 1788823747.31 total 110.04 last 81.69)
total: 8000 open/close in 110.24 seconds: 72.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 160 seconds
lru_size = 400
400
 - unlinked 0 (time 1788823919 ; total 0 ; last 0)
total: 8000 unlinks in 104 seconds: 76.923080 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 808 (time 1788824039.34 total 10.01 last 80.74)
 - open/close 1568 (time 1788824049.35 total 20.02 last 75.93)
 - open/close 2402 (time 1788824059.35 total 30.02 last 83.39)
 - open/close 3236 (time 1788824069.35 total 40.02 last 83.36)
 - open/close 4109 (time 1788824079.37 total 50.04 last 87.14)
 - open/close 4940 (time 1788824089.38 total 60.04 last 83.07)
 - open/close 5802 (time 1788824099.38 total 70.05 last 86.14)
 - open/close 6543 (time 1788824109.39 total 80.06 last 74.05)
 - open/close 7171 (time 1788824119.39 total 90.06 last 62.79)
 - open/close 7842 (time 1788824129.40 total 100.06 last 67.07)
total: 8000 open/close in 102.58 seconds: 77.99 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 74 seconds
lru_size = 4006
4001
ls -la is 53% faster with lru resize enabled
 - unlinked 0 (time 1788824226 ; total 0 ; last 0)
total: 8000 unlinks in 71 seconds: 112.676056 unlinks/second