== sanity test 124b: lru resize (performance test) ================================================================================= 11:52:30 (1782229950)
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 977 (time 1782229964.12 total 10.00 last 97.68)
 - open/close 1843 (time 1782229974.12 total 20.01 last 86.54)
 - open/close 2711 (time 1782229984.13 total 30.01 last 86.77)
 - open/close 3580 (time 1782229994.14 total 40.02 last 86.80)
 - open/close 4480 (time 1782230004.14 total 50.03 last 89.97)
 - open/close 5251 (time 1782230014.14 total 60.03 last 77.10)
 - open/close 5918 (time 1782230024.15 total 70.04 last 66.62)
 - open/close 6813 (time 1782230034.16 total 80.04 last 89.48)
 - open/close 7649 (time 1782230044.17 total 90.05 last 83.52)
total: 8000 open/close in 94.35 seconds: 84.79 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1782230206 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 812 (time 1782230316.07 total 10.01 last 81.14)
 - open/close 1634 (time 1782230326.08 total 20.02 last 82.11)
 - open/close 2413 (time 1782230336.09 total 30.02 last 77.87)
 - open/close 3240 (time 1782230346.09 total 40.03 last 82.65)
 - open/close 3920 (time 1782230356.10 total 50.04 last 67.95)
 - open/close 4644 (time 1782230366.11 total 60.04 last 72.34)
 - open/close 5505 (time 1782230376.13 total 70.07 last 85.92)
 - open/close 6336 (time 1782230386.13 total 80.07 last 83.09)
 - open/close 7182 (time 1782230396.13 total 90.07 last 84.57)
total: 8000 open/close in 99.01 seconds: 80.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1782230510 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second