== sanity test 124b: lru resize (performance test) ================================================================================= 23:35:19 (1788838519)
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 768 (time 1788838534.51 total 10.00 last 76.79)
 - open/close 1488 (time 1788838544.52 total 20.01 last 71.96)
 - open/close 2273 (time 1788838554.52 total 30.01 last 78.50)
 - open/close 3068 (time 1788838564.52 total 40.01 last 79.48)
 - open/close 3802 (time 1788838574.53 total 50.02 last 73.33)
 - open/close 4608 (time 1788838584.54 total 60.03 last 80.54)
 - open/close 5360 (time 1788838594.55 total 70.04 last 75.12)
 - open/close 6110 (time 1788838604.55 total 80.04 last 74.98)
 - open/close 6790 (time 1788838614.56 total 90.05 last 67.96)
 - open/close 7558 (time 1788838624.57 total 100.06 last 76.73)
total: 8000 open/close in 106.14 seconds: 75.37 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1788838797 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 750 (time 1788838911.81 total 10.02 last 74.86)
 - open/close 1577 (time 1788838921.82 total 20.03 last 82.60)
 - open/close 2378 (time 1788838931.83 total 30.03 last 80.08)
 - open/close 3213 (time 1788838941.83 total 40.04 last 83.48)
 - open/close 4067 (time 1788838951.83 total 50.04 last 85.40)
 - open/close 4879 (time 1788838961.83 total 60.04 last 81.17)
 - open/close 5673 (time 1788838971.83 total 70.04 last 79.39)
 - open/close 6471 (time 1788838981.84 total 80.05 last 79.74)
 - open/close 7266 (time 1788838991.85 total 90.06 last 79.42)
total: 8000 open/close in 99.25 seconds: 80.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1788839104 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second