== sanity test 124b: lru resize (performance test) ================================================================================= 23:42:08 (1788925328)
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 746 (time 1788925343.80 total 10.00 last 74.59)
 - open/close 1481 (time 1788925353.83 total 20.02 last 73.32)
 - open/close 2256 (time 1788925363.84 total 30.03 last 77.43)
 - open/close 2902 (time 1788925373.84 total 40.03 last 64.59)
 - open/close 3655 (time 1788925383.85 total 50.05 last 75.22)
 - open/close 4459 (time 1788925393.87 total 60.06 last 80.25)
 - open/close 5197 (time 1788925403.89 total 70.09 last 73.59)
 - open/close 5927 (time 1788925413.90 total 80.10 last 72.95)
 - open/close 6649 (time 1788925423.91 total 90.11 last 72.11)
 - open/close 7368 (time 1788925433.92 total 100.12 last 71.84)
 - open/close 7967 (time 1788925443.92 total 110.12 last 59.89)
total: 8000 open/close in 110.67 seconds: 72.29 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 182 seconds
lru_size = 400
400
 - unlinked 0 (time 1788925636 ; total 0 ; last 0)
total: 8000 unlinks in 109 seconds: 73.394493 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 881 (time 1788925760.39 total 10.00 last 88.10)
 - open/close 1672 (time 1788925770.39 total 20.00 last 79.08)
 - open/close 2537 (time 1788925780.39 total 30.01 last 86.47)
 - open/close 3376 (time 1788925790.40 total 40.01 last 83.84)
 - open/close 4295 (time 1788925800.41 total 50.02 last 91.81)
 - open/close 5202 (time 1788925810.42 total 60.03 last 90.62)
 - open/close 6027 (time 1788925820.42 total 70.04 last 82.46)
 - open/close 6908 (time 1788925830.43 total 80.04 last 88.08)
 - open/close 7783 (time 1788925840.43 total 90.04 last 87.46)
total: 8000 open/close in 92.82 seconds: 86.19 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 94 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1788925957 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second