== sanity test 124b: lru resize (performance test) ================================================================================= 10:10:54 (1787839854)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 917 (time 1787839868.10 total 10.01 last 91.62)
 - open/close 1794 (time 1787839878.11 total 20.02 last 87.62)
 - open/close 2592 (time 1787839888.12 total 30.03 last 79.71)
 - open/close 3373 (time 1787839898.13 total 40.03 last 78.06)
 - open/close 4165 (time 1787839908.13 total 50.04 last 79.15)
 - open/close 4931 (time 1787839918.13 total 60.04 last 76.58)
 - open/close 5655 (time 1787839928.14 total 70.04 last 72.38)
 - open/close 6494 (time 1787839938.14 total 80.05 last 83.84)
 - open/close 7347 (time 1787839948.15 total 90.06 last 85.23)
total: 8000 open/close in 97.91 seconds: 81.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 143 seconds
lru_size = 400
400
 - unlinked 0 (time 1787840109 ; 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 738 (time 1787840223.82 total 10.02 last 73.65)
 - open/close 1522 (time 1787840233.82 total 20.02 last 78.37)
 - open/close 2373 (time 1787840243.83 total 30.03 last 85.05)
 - open/close 3221 (time 1787840253.84 total 40.04 last 84.74)
 - open/close 4011 (time 1787840263.87 total 50.07 last 78.78)
 - open/close 4794 (time 1787840273.89 total 60.09 last 78.11)
 - open/close 5523 (time 1787840283.90 total 70.10 last 72.85)
 - open/close 6424 (time 1787840293.90 total 80.10 last 90.05)
 - open/close 7249 (time 1787840303.91 total 90.11 last 82.46)
total: 8000 open/close in 99.12 seconds: 80.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4052
3955
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1787840416 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second