== sanity test 124b: lru resize (performance test) ================================================================================= 21:29:32 (1781227772)
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 749 (time 1781227786.95 total 10.01 last 74.85)
 - open/close 1515 (time 1781227796.96 total 20.01 last 76.56)
 - open/close 2369 (time 1781227806.97 total 30.03 last 85.23)
 - open/close 3075 (time 1781227817.00 total 40.05 last 70.45)
 - open/close 3883 (time 1781227827.00 total 50.06 last 80.77)
 - open/close 4603 (time 1781227837.00 total 60.06 last 71.97)
 - open/close 5248 (time 1781227847.01 total 70.06 last 64.48)
 - open/close 6038 (time 1781227857.01 total 80.07 last 78.95)
 - open/close 6752 (time 1781227867.02 total 90.07 last 71.38)
 - open/close 7533 (time 1781227877.02 total 100.08 last 78.04)
total: 8000 open/close in 105.85 seconds: 75.58 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 104 seconds
lru_size = 400
400
 - unlinked 0 (time 1781228000 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 843 (time 1781228119.90 total 10.01 last 84.24)
 - open/close 1654 (time 1781228129.90 total 20.01 last 81.08)
 - open/close 2508 (time 1781228139.91 total 30.01 last 85.35)
 - open/close 3311 (time 1781228149.92 total 40.02 last 80.22)
 - open/close 4102 (time 1781228159.92 total 50.03 last 79.06)
 - open/close 4904 (time 1781228169.92 total 60.03 last 80.19)
 - open/close 5756 (time 1781228179.93 total 70.04 last 85.12)
 - open/close 6675 (time 1781228189.93 total 80.04 last 91.89)
 - open/close 7506 (time 1781228199.94 total 90.05 last 83.04)
total: 8000 open/close in 96.77 seconds: 82.67 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 19% faster with lru resize enabled
 - unlinked 0 (time 1781228313 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second