== sanity test 124b: lru resize (performance test) ================================================================================= 17:02:37 (1787864557)
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 775 (time 1787864571.83 total 10.01 last 77.39)
 - open/close 1665 (time 1787864581.83 total 20.02 last 88.96)
 - open/close 2574 (time 1787864591.85 total 30.03 last 90.78)
 - open/close 3514 (time 1787864601.86 total 40.04 last 93.92)
 - open/close 4396 (time 1787864611.86 total 50.05 last 88.13)
 - open/close 5222 (time 1787864621.87 total 60.05 last 82.56)
 - open/close 6156 (time 1787864631.87 total 70.05 last 93.40)
 - open/close 7111 (time 1787864641.87 total 80.06 last 95.48)
 - open/close 7982 (time 1787864651.88 total 90.07 last 87.02)
total: 8000 open/close in 90.28 seconds: 88.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1787864797 ; total 0 ; last 0)
total: 8000 unlinks in 85 seconds: 94.117645 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 954 (time 1787864897.44 total 10.01 last 95.29)
 - open/close 1948 (time 1787864907.44 total 20.01 last 99.37)
 - open/close 2929 (time 1787864917.44 total 30.02 last 98.06)
 - open/close 3881 (time 1787864927.44 total 40.02 last 95.20)
 - open/close 4806 (time 1787864937.45 total 50.02 last 92.47)
 - open/close 5765 (time 1787864947.45 total 60.02 last 95.88)
 - open/close 6684 (time 1787864957.46 total 70.03 last 91.84)
 - open/close 7566 (time 1787864967.46 total 80.04 last 88.13)
total: 8000 open/close in 85.57 seconds: 93.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1787865068 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second