== sanity test 124b: lru resize (performance test) ================================================================================= 04:05:33 (1790669133)
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 647 (time 1790669148.07 total 10.00 last 64.68)
 - open/close 1207 (time 1790669158.07 total 20.01 last 55.98)
 - open/close 1998 (time 1790669168.07 total 30.01 last 79.06)
 - open/close 2745 (time 1790669178.08 total 40.01 last 74.68)
 - open/close 3628 (time 1790669188.08 total 50.02 last 88.26)
 - open/close 4409 (time 1790669198.09 total 60.02 last 78.06)
 - open/close 5266 (time 1790669208.09 total 70.03 last 85.68)
 - open/close 5810 (time 1790669218.10 total 80.03 last 54.37)
 - open/close 6545 (time 1790669228.10 total 90.04 last 73.45)
 - open/close 7347 (time 1790669238.12 total 100.06 last 80.04)
total: 8000 open/close in 108.71 seconds: 73.59 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 1790669406 ; total 0 ; last 0)
total: 8000 unlinks in 104 seconds: 76.923080 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 848 (time 1790669525.31 total 10.01 last 84.73)
 - open/close 1679 (time 1790669535.32 total 20.02 last 83.02)
 - open/close 2501 (time 1790669545.33 total 30.03 last 82.15)
 - open/close 3330 (time 1790669555.34 total 40.03 last 82.87)
 - open/close 4105 (time 1790669565.35 total 50.05 last 77.35)
 - open/close 4940 (time 1790669575.36 total 60.05 last 83.45)
 - open/close 5826 (time 1790669585.36 total 70.06 last 88.55)
 - open/close 6739 (time 1790669595.37 total 80.07 last 91.22)
 - open/close 7606 (time 1790669605.39 total 90.09 last 86.54)
total: 8000 open/close in 94.24 seconds: 84.89 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4007
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1790669704 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second