== sanity test 124b: lru resize (performance test) ================================================================================= 07:24:28 (1787570668)
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 932 (time 1787570681.63 total 10.01 last 93.11)
 - open/close 1866 (time 1787570691.64 total 20.02 last 93.31)
 - open/close 2768 (time 1787570701.64 total 30.02 last 90.17)
 - open/close 3697 (time 1787570711.65 total 40.03 last 92.82)
 - open/close 4611 (time 1787570721.65 total 50.03 last 91.38)
 - open/close 5550 (time 1787570731.66 total 60.04 last 93.84)
 - open/close 6514 (time 1787570741.66 total 70.05 last 96.33)
 - open/close 7383 (time 1787570751.67 total 80.05 last 86.87)
total: 8000 open/close in 86.60 seconds: 92.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 139 seconds
lru_size = 400
400
 - unlinked 0 (time 1787570906 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 837 (time 1787571010.04 total 10.00 last 83.67)
 - open/close 1743 (time 1787571020.05 total 20.01 last 90.51)
 - open/close 2622 (time 1787571030.05 total 30.01 last 87.89)
 - open/close 3638 (time 1787571040.05 total 40.02 last 101.56)
 - open/close 4508 (time 1787571050.05 total 50.02 last 86.99)
 - open/close 5504 (time 1787571060.06 total 60.02 last 99.56)
 - open/close 6459 (time 1787571070.06 total 70.03 last 95.45)
 - open/close 7525 (time 1787571080.07 total 80.03 last 106.53)
total: 8000 open/close in 84.97 seconds: 94.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 4006
4001
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1787571179 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second