== sanity test 124b: lru resize (performance test) ================================================================================= 20:10:53 (1788653453)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 848 (time 1788653468.90 total 10.01 last 84.71)
 - open/close 1682 (time 1788653478.90 total 20.01 last 83.40)
 - open/close 2504 (time 1788653488.91 total 30.02 last 82.13)
 - open/close 3295 (time 1788653498.91 total 40.02 last 79.10)
 - open/close 4060 (time 1788653508.92 total 50.02 last 76.48)
 - open/close 4849 (time 1788653518.92 total 60.03 last 78.88)
 - open/close 5685 (time 1788653528.94 total 70.05 last 83.41)
 - open/close 6430 (time 1788653538.95 total 80.06 last 74.45)
 - open/close 7059 (time 1788653548.97 total 90.08 last 62.76)
 - open/close 7750 (time 1788653558.99 total 100.10 last 68.98)
total: 8000 open/close in 103.79 seconds: 77.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1788653727 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 810 (time 1788653841.04 total 10.01 last 80.92)
 - open/close 1672 (time 1788653851.05 total 20.03 last 86.06)
 - open/close 2517 (time 1788653861.05 total 30.03 last 84.50)
 - open/close 3361 (time 1788653871.06 total 40.03 last 84.36)
 - open/close 4209 (time 1788653881.06 total 50.03 last 84.79)
 - open/close 5055 (time 1788653891.06 total 60.04 last 84.55)
 - open/close 5935 (time 1788653901.07 total 70.04 last 87.99)
 - open/close 6732 (time 1788653911.08 total 80.05 last 79.59)
 - open/close 7550 (time 1788653921.09 total 90.06 last 81.71)
total: 8000 open/close in 95.13 seconds: 84.09 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788654027 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second