== sanity test 124b: lru resize (performance test) ================================================================================= 09:51:24 (1787838684)
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 778 (time 1787838698.82 total 10.00 last 77.78)
 - open/close 1523 (time 1787838708.83 total 20.01 last 74.42)
 - open/close 2291 (time 1787838718.83 total 30.02 last 76.77)
 - open/close 2832 (time 1787838728.84 total 40.02 last 54.07)
 - open/close 3587 (time 1787838738.85 total 50.03 last 75.42)
 - open/close 4381 (time 1787838748.85 total 60.04 last 79.38)
 - open/close 5172 (time 1787838758.86 total 70.04 last 79.07)
 - open/close 5836 (time 1787838768.87 total 80.05 last 66.32)
 - open/close 6616 (time 1787838778.88 total 90.06 last 77.94)
 - open/close 7449 (time 1787838788.89 total 100.07 last 83.23)
total: 8000 open/close in 108.01 seconds: 74.07 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1787838959 ; total 0 ; last 0)
total: 8000 unlinks in 110 seconds: 72.727272 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 773 (time 1787839084.73 total 10.01 last 77.23)
 - open/close 1430 (time 1787839094.73 total 20.01 last 65.66)
 - open/close 2173 (time 1787839104.73 total 30.02 last 74.28)
 - open/close 2904 (time 1787839114.75 total 40.04 last 72.96)
 - open/close 3663 (time 1787839124.76 total 50.04 last 75.88)
 - open/close 4458 (time 1787839134.76 total 60.04 last 79.49)
 - open/close 5155 (time 1787839144.77 total 70.05 last 69.61)
 - open/close 5906 (time 1787839154.78 total 80.06 last 75.05)
 - open/close 6556 (time 1787839164.79 total 90.08 last 64.90)
 - open/close 7262 (time 1787839174.80 total 100.08 last 70.55)
total: 8000 open/close in 109.80 seconds: 72.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1787839293 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second