== sanity test 124b: lru resize (performance test) ================================================================================= 07:37:53 (1789126673)
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 762 (time 1789126689.13 total 10.00 last 76.17)
 - open/close 1525 (time 1789126699.13 total 20.01 last 76.29)
 - open/close 2356 (time 1789126709.14 total 30.02 last 82.97)
 - open/close 3168 (time 1789126719.15 total 40.03 last 81.11)
 - open/close 3886 (time 1789126729.16 total 50.04 last 71.76)
 - open/close 4727 (time 1789126739.17 total 60.05 last 84.02)
 - open/close 5482 (time 1789126749.18 total 70.05 last 75.45)
 - open/close 6245 (time 1789126759.18 total 80.06 last 76.25)
 - open/close 7005 (time 1789126769.20 total 90.08 last 75.90)
 - open/close 7799 (time 1789126779.20 total 100.08 last 79.40)
total: 8000 open/close in 102.90 seconds: 77.74 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 160 seconds
lru_size = 400
400
 - unlinked 0 (time 1789126954 ; total 0 ; last 0)
total: 8000 unlinks in 105 seconds: 76.190475 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 681 (time 1789127074.03 total 10.02 last 68.00)
 - open/close 1365 (time 1789127084.04 total 20.02 last 68.37)
 - open/close 2100 (time 1789127094.04 total 30.02 last 73.48)
 - open/close 2926 (time 1789127104.05 total 40.03 last 82.54)
 - open/close 3648 (time 1789127114.06 total 50.04 last 72.10)
 - open/close 4475 (time 1789127124.06 total 60.04 last 82.70)
 - open/close 5157 (time 1789127134.07 total 70.05 last 68.14)
 - open/close 6046 (time 1789127144.07 total 80.05 last 88.88)
 - open/close 6860 (time 1789127154.07 total 90.06 last 81.39)
 - open/close 7679 (time 1789127164.09 total 100.07 last 81.79)
total: 8000 open/close in 104.60 seconds: 76.48 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4006
4001
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1789127276 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second