== sanity test 124b: lru resize (performance test) ================================================================================= 10:41:13 (1789137673)
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 778 (time 1789137687.77 total 10.00 last 77.77)
 - open/close 1525 (time 1789137697.79 total 20.02 last 74.56)
 - open/close 2248 (time 1789137707.79 total 30.03 last 72.26)
 - open/close 2918 (time 1789137717.80 total 40.03 last 66.97)
 - open/close 3677 (time 1789137727.81 total 50.04 last 75.80)
 - open/close 4409 (time 1789137737.83 total 60.07 last 73.04)
 - open/close 5148 (time 1789137747.84 total 70.07 last 73.87)
 - open/close 5835 (time 1789137757.84 total 80.08 last 68.66)
 - open/close 6537 (time 1789137767.85 total 90.09 last 70.13)
 - open/close 7267 (time 1789137777.86 total 100.09 last 72.97)
 - open/close 7956 (time 1789137787.87 total 110.11 last 68.78)
total: 8000 open/close in 110.73 seconds: 72.25 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 161 seconds
lru_size = 400
400
 - unlinked 0 (time 1789137960 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 828 (time 1789138072.39 total 10.00 last 82.78)
 - open/close 1585 (time 1789138082.39 total 20.01 last 75.66)
 - open/close 2386 (time 1789138092.40 total 30.01 last 80.07)
 - open/close 3205 (time 1789138102.40 total 40.01 last 81.88)
 - open/close 3961 (time 1789138112.40 total 50.02 last 75.59)
 - open/close 4755 (time 1789138122.41 total 60.03 last 79.32)
 - open/close 5555 (time 1789138132.42 total 70.03 last 79.93)
 - open/close 6361 (time 1789138142.42 total 80.04 last 80.56)
 - open/close 7263 (time 1789138152.43 total 90.05 last 90.11)
total: 8000 open/close in 98.84 seconds: 80.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 67 seconds
lru_size = 4052
3955
ls -la is 58% faster with lru resize enabled
 - unlinked 0 (time 1789138244 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second