== sanity test 124b: lru resize (performance test) ================================================================================= 22:00:39 (1788660039)
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 784 (time 1788660053.23 total 10.02 last 78.28)
 - open/close 1562 (time 1788660063.24 total 20.02 last 77.76)
 - open/close 2446 (time 1788660073.24 total 30.03 last 88.37)
 - open/close 3313 (time 1788660083.25 total 40.03 last 86.63)
 - open/close 4136 (time 1788660093.25 total 50.04 last 82.28)
 - open/close 4992 (time 1788660103.26 total 60.04 last 85.53)
 - open/close 5868 (time 1788660113.27 total 70.05 last 87.52)
 - open/close 6746 (time 1788660123.27 total 80.06 last 87.77)
 - open/close 7599 (time 1788660133.28 total 90.06 last 85.27)
total: 8000 open/close in 95.08 seconds: 84.14 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 147 seconds
lru_size = 400
400
 - unlinked 0 (time 1788660294 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 879 (time 1788660403.70 total 10.01 last 87.85)
 - open/close 1828 (time 1788660413.70 total 20.01 last 94.86)
 - open/close 2734 (time 1788660423.70 total 30.01 last 90.57)
 - open/close 3640 (time 1788660433.72 total 40.02 last 90.49)
 - open/close 4529 (time 1788660443.72 total 50.03 last 88.88)
 - open/close 5313 (time 1788660453.73 total 60.04 last 78.32)
 - open/close 6128 (time 1788660463.74 total 70.04 last 81.44)
 - open/close 6905 (time 1788660473.74 total 80.05 last 77.67)
 - open/close 7767 (time 1788660483.74 total 90.05 last 86.20)
total: 8000 open/close in 92.54 seconds: 86.45 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1788660582 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second