== sanity test 124b: lru resize (performance test) ================================================================================= 02:43:23 (1788677003)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 671 (time 1788677019.30 total 10.02 last 66.97)
 - open/close 1235 (time 1788677029.32 total 20.03 last 56.32)
 - open/close 1793 (time 1788677039.32 total 30.04 last 55.77)
 - open/close 2413 (time 1788677049.33 total 40.04 last 61.97)
 - open/close 3104 (time 1788677059.33 total 50.05 last 69.07)
 - open/close 3831 (time 1788677069.33 total 60.05 last 72.68)
 - open/close 4478 (time 1788677079.34 total 70.05 last 64.67)
 - open/close 5089 (time 1788677089.34 total 80.06 last 61.06)
 - open/close 5789 (time 1788677099.34 total 90.06 last 69.99)
 - open/close 6502 (time 1788677109.35 total 100.06 last 71.29)
 - open/close 7328 (time 1788677119.36 total 110.07 last 82.52)
total: 8000 open/close in 118.55 seconds: 67.48 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 176 seconds
lru_size = 400
400
 - unlinked 0 (time 1788677313 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 762 (time 1788677428.47 total 10.00 last 76.17)
 - open/close 1545 (time 1788677438.48 total 20.01 last 78.23)
 - open/close 2314 (time 1788677448.49 total 30.02 last 76.83)
 - open/close 3069 (time 1788677458.49 total 40.02 last 75.48)
 - open/close 3760 (time 1788677468.49 total 50.03 last 69.09)
 - open/close 4581 (time 1788677478.51 total 60.04 last 81.98)
 - open/close 5358 (time 1788677488.51 total 70.05 last 77.67)
 - open/close 6133 (time 1788677498.51 total 80.05 last 77.49)
 - open/close 6976 (time 1788677508.51 total 90.05 last 84.28)
 - open/close 7766 (time 1788677518.52 total 100.06 last 78.91)
total: 8000 open/close in 103.55 seconds: 77.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 98 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1788677646 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second