== sanity test 124b: lru resize (performance test) ================================================================================= 00:41:23 (1788756083)
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 663 (time 1788756099.99 total 10.01 last 66.22)
 - open/close 1245 (time 1788756110.00 total 20.02 last 58.17)
 - open/close 2013 (time 1788756120.01 total 30.03 last 76.72)
 - open/close 2728 (time 1788756130.01 total 40.03 last 71.46)
 - open/close 3380 (time 1788756140.02 total 50.04 last 65.16)
 - open/close 4153 (time 1788756150.03 total 60.05 last 77.20)
 - open/close 4837 (time 1788756160.04 total 70.06 last 68.36)
 - open/close 5573 (time 1788756170.07 total 80.09 last 73.33)
 - open/close 6272 (time 1788756180.08 total 90.10 last 69.86)
 - open/close 6823 (time 1788756190.09 total 100.11 last 55.04)
 - open/close 7340 (time 1788756200.10 total 110.12 last 51.63)
total: 8000 open/close in 119.42 seconds: 66.99 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 112 seconds
lru_size = 400
400
 - unlinked 0 (time 1788756331 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 648 (time 1788756455.42 total 10.00 last 64.79)
 - open/close 1363 (time 1788756465.44 total 20.01 last 71.41)
 - open/close 2067 (time 1788756475.44 total 30.02 last 70.37)
 - open/close 2814 (time 1788756485.45 total 40.03 last 74.61)
 - open/close 3526 (time 1788756495.45 total 50.03 last 71.20)
 - open/close 4370 (time 1788756505.49 total 60.07 last 84.10)
 - open/close 5147 (time 1788756515.49 total 70.07 last 77.67)
 - open/close 5926 (time 1788756525.50 total 80.08 last 77.85)
 - open/close 6756 (time 1788756535.50 total 90.08 last 82.98)
 - open/close 7722 (time 1788756545.51 total 100.09 last 96.49)
total: 8000 open/close in 103.38 seconds: 77.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 90 seconds
lru_size = 4006
4001
ls -la is 19% faster with lru resize enabled
 - unlinked 0 (time 1788756660 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second