== sanity test 124b: lru resize (performance test) ================================================================================= 21:06:53 (1788570413)
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 815 (time 1788570428.06 total 10.01 last 81.42)
 - open/close 1571 (time 1788570438.06 total 20.02 last 75.55)
 - open/close 2409 (time 1788570448.07 total 30.02 last 83.77)
 - open/close 3269 (time 1788570458.07 total 40.02 last 85.99)
 - open/close 4140 (time 1788570468.07 total 50.02 last 87.06)
 - open/close 4979 (time 1788570478.08 total 60.03 last 83.85)
 - open/close 5821 (time 1788570488.08 total 70.04 last 84.14)
 - open/close 6600 (time 1788570498.10 total 80.05 last 77.80)
 - open/close 7274 (time 1788570508.10 total 90.06 last 67.37)
total: 8000 open/close in 100.04 seconds: 79.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1788570682 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 873 (time 1788570793.90 total 10.01 last 87.23)
 - open/close 1749 (time 1788570803.92 total 20.02 last 87.48)
 - open/close 2604 (time 1788570813.93 total 30.04 last 85.37)
 - open/close 3374 (time 1788570823.94 total 40.04 last 76.96)
 - open/close 4186 (time 1788570833.94 total 50.05 last 81.14)
 - open/close 5056 (time 1788570843.95 total 60.06 last 86.95)
 - open/close 5883 (time 1788570853.95 total 70.06 last 82.67)
 - open/close 6653 (time 1788570863.96 total 80.07 last 76.95)
 - open/close 7571 (time 1788570873.97 total 90.07 last 91.72)
total: 8000 open/close in 94.96 seconds: 84.24 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 106 seconds
lru_size = 4052
3955
ls -la is 30% faster with lru resize enabled
 - unlinked 0 (time 1788571012 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second