== sanity test 124b: lru resize (performance test) ================================================================================= 05:41:27 (1789465287)
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 821 (time 1789465303.26 total 10.01 last 81.99)
 - open/close 1635 (time 1789465313.27 total 20.02 last 81.37)
 - open/close 2461 (time 1789465323.27 total 30.02 last 82.57)
 - open/close 3137 (time 1789465333.28 total 40.03 last 67.55)
 - open/close 3943 (time 1789465343.28 total 50.03 last 80.57)
 - open/close 4698 (time 1789465353.29 total 60.04 last 75.45)
 - open/close 5488 (time 1789465363.29 total 70.04 last 79.00)
 - open/close 6317 (time 1789465373.30 total 80.05 last 82.84)
 - open/close 7151 (time 1789465383.30 total 90.05 last 83.35)
 - open/close 7995 (time 1789465393.31 total 100.06 last 84.31)
total: 8000 open/close in 100.10 seconds: 79.92 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 1789465565 ; total 1 ; last 1)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 849 (time 1789465671.82 total 10.01 last 84.81)
 - open/close 1814 (time 1789465681.82 total 20.01 last 96.49)
 - open/close 2825 (time 1789465691.83 total 30.02 last 101.00)
 - open/close 3532 (time 1789465701.84 total 40.03 last 70.63)
 - open/close 4458 (time 1789465711.87 total 50.06 last 92.35)
 - open/close 5338 (time 1789465721.87 total 60.06 last 87.95)
 - open/close 6243 (time 1789465731.88 total 70.07 last 90.45)
 - open/close 7147 (time 1789465741.88 total 80.07 last 90.39)
total: 8000 open/close in 89.95 seconds: 88.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4007
4002
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1789465854 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second