== sanity test 124b: lru resize (performance test) ================================================================================= 11:47:47 (1789487267)
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 903 (time 1789487283.00 total 10.01 last 90.21)
 - open/close 1732 (time 1789487293.00 total 20.02 last 82.85)
 - open/close 2551 (time 1789487303.03 total 30.04 last 81.69)
 - open/close 3329 (time 1789487313.04 total 40.06 last 77.68)
 - open/close 4129 (time 1789487323.05 total 50.07 last 79.92)
 - open/close 4941 (time 1789487333.06 total 60.08 last 81.11)
 - open/close 5747 (time 1789487343.07 total 70.08 last 80.56)
 - open/close 6591 (time 1789487353.09 total 80.10 last 84.23)
 - open/close 7482 (time 1789487363.10 total 90.11 last 89.00)
total: 8000 open/close in 96.67 seconds: 82.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1789487529 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 848 (time 1789487640.51 total 10.00 last 84.78)
 - open/close 1637 (time 1789487650.52 total 20.01 last 78.81)
 - open/close 2419 (time 1789487660.53 total 30.02 last 78.15)
 - open/close 3283 (time 1789487670.54 total 40.03 last 86.31)
 - open/close 4085 (time 1789487680.55 total 50.04 last 80.13)
 - open/close 4807 (time 1789487690.56 total 60.05 last 72.14)
 - open/close 5506 (time 1789487700.57 total 70.06 last 69.81)
 - open/close 6259 (time 1789487710.58 total 80.07 last 75.25)
 - open/close 7094 (time 1789487720.58 total 90.07 last 83.45)
 - open/close 7962 (time 1789487730.60 total 100.09 last 86.69)
total: 8000 open/close in 100.60 seconds: 79.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1789487829 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second