== sanity test 124b: lru resize (performance test) ================================================================================= 04:30:53 (1788856253)
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 686 (time 1788856267.81 total 10.01 last 68.56)
 - open/close 1346 (time 1788856277.82 total 20.02 last 65.92)
 - open/close 2047 (time 1788856287.82 total 30.02 last 70.09)
 - open/close 2800 (time 1788856297.83 total 40.03 last 75.25)
 - open/close 3558 (time 1788856307.83 total 50.03 last 75.75)
 - open/close 4391 (time 1788856317.84 total 60.04 last 83.22)
 - open/close 5161 (time 1788856327.85 total 70.05 last 76.93)
 - open/close 5945 (time 1788856337.86 total 80.06 last 78.32)
 - open/close 6543 (time 1788856347.87 total 90.07 last 59.72)
 - open/close 7147 (time 1788856357.89 total 100.09 last 60.31)
 - open/close 7898 (time 1788856367.90 total 110.10 last 75.02)
total: 8000 open/close in 111.34 seconds: 71.85 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 1788856539 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 669 (time 1788856661.51 total 10.01 last 66.81)
 - open/close 1426 (time 1788856671.54 total 20.04 last 75.48)
 - open/close 2191 (time 1788856681.54 total 30.05 last 76.48)
 - open/close 2881 (time 1788856691.55 total 40.05 last 68.96)
 - open/close 3708 (time 1788856701.59 total 50.09 last 82.37)
 - open/close 4444 (time 1788856711.59 total 60.10 last 73.56)
 - open/close 5239 (time 1788856721.59 total 70.10 last 79.49)
 - open/close 6002 (time 1788856731.60 total 80.10 last 76.28)
 - open/close 6761 (time 1788856741.60 total 90.10 last 75.90)
 - open/close 7533 (time 1788856751.60 total 100.10 last 77.20)
total: 8000 open/close in 105.11 seconds: 76.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1788856858 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second