== sanity test 124b: lru resize (performance test) ================================================================================= 04:18:12 (1787559492)
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 781 (time 1787559506.90 total 10.01 last 78.06)
 - open/close 1583 (time 1787559516.91 total 20.01 last 80.16)
 - open/close 2454 (time 1787559526.91 total 30.02 last 87.05)
 - open/close 3306 (time 1787559536.92 total 40.02 last 85.13)
 - open/close 3957 (time 1787559546.92 total 50.03 last 65.09)
 - open/close 4696 (time 1787559556.94 total 60.04 last 73.78)
 - open/close 5321 (time 1787559566.95 total 70.05 last 62.47)
 - open/close 6112 (time 1787559576.95 total 80.05 last 79.10)
 - open/close 6868 (time 1787559586.95 total 90.05 last 75.55)
 - open/close 7768 (time 1787559596.97 total 100.07 last 89.85)
total: 8000 open/close in 102.78 seconds: 77.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 180 seconds
lru_size = 400
400
 - unlinked 0 (time 1787559791 ; total 0 ; last 0)
total: 8000 unlinks in 110 seconds: 72.727272 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 767 (time 1787559916.08 total 10.01 last 76.63)
 - open/close 1531 (time 1787559926.08 total 20.02 last 76.34)
 - open/close 2275 (time 1787559936.09 total 30.02 last 74.36)
 - open/close 2940 (time 1787559946.11 total 40.04 last 66.38)
 - open/close 3592 (time 1787559956.11 total 50.05 last 65.15)
 - open/close 4232 (time 1787559966.12 total 60.06 last 63.95)
 - open/close 4908 (time 1787559976.13 total 70.07 last 67.53)
 - open/close 5534 (time 1787559986.13 total 80.07 last 62.59)
 - open/close 6123 (time 1787559996.14 total 90.07 last 58.89)
 - open/close 6722 (time 1787560006.14 total 100.07 last 59.90)
 - open/close 7500 (time 1787560016.15 total 110.08 last 77.69)
total: 8000 open/close in 118.14 seconds: 67.72 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 109 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1787560158 ; total 0 ; last 0)
total: 8000 unlinks in 72 seconds: 111.111115 unlinks/second