== sanity test 124b: lru resize (performance test) ================================================================================= 17:33:07 (1789507987)
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 791 (time 1789508004.08 total 10.01 last 78.99)
 - open/close 1480 (time 1789508014.10 total 20.03 last 68.80)
 - open/close 2458 (time 1789508024.10 total 30.03 last 97.76)
 - open/close 3266 (time 1789508034.10 total 40.03 last 80.79)
 - open/close 4010 (time 1789508044.11 total 50.04 last 74.37)
 - open/close 4944 (time 1789508054.11 total 60.04 last 93.33)
 - open/close 5626 (time 1789508064.14 total 70.07 last 68.04)
 - open/close 6418 (time 1789508074.14 total 80.07 last 79.15)
 - open/close 7062 (time 1789508084.15 total 90.08 last 64.37)
 - open/close 7742 (time 1789508094.15 total 100.08 last 67.99)
total: 8000 open/close in 103.54 seconds: 77.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 147 seconds
lru_size = 400
400
 - unlinked 0 (time 1789508256 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 905 (time 1789508364.42 total 10.00 last 90.48)
 - open/close 1943 (time 1789508374.43 total 20.01 last 103.74)
 - open/close 2945 (time 1789508384.43 total 30.01 last 100.17)
 - open/close 3799 (time 1789508394.44 total 40.03 last 85.27)
 - open/close 4636 (time 1789508404.45 total 50.03 last 83.64)
 - open/close 5399 (time 1789508414.45 total 60.04 last 76.28)
 - open/close 6322 (time 1789508424.46 total 70.04 last 92.29)
 - open/close 7057 (time 1789508434.46 total 80.04 last 73.49)
 - open/close 7898 (time 1789508444.47 total 90.05 last 83.98)
total: 8000 open/close in 91.38 seconds: 87.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1789508558 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second