== sanity test 124b: lru resize (performance test) ================================================================================= 21:13:53 (1787706833)
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 860 (time 1787706848.62 total 10.00 last 85.97)
 - open/close 1640 (time 1787706858.62 total 20.01 last 77.96)
 - open/close 2432 (time 1787706868.64 total 30.03 last 79.03)
 - open/close 3228 (time 1787706878.66 total 40.04 last 79.49)
 - open/close 3956 (time 1787706888.66 total 50.05 last 72.74)
 - open/close 4784 (time 1787706898.67 total 60.06 last 82.77)
 - open/close 5601 (time 1787706908.68 total 70.07 last 81.56)
 - open/close 6416 (time 1787706918.69 total 80.07 last 81.48)
 - open/close 7204 (time 1787706928.71 total 90.09 last 78.65)
total: 8000 open/close in 99.50 seconds: 80.40 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 148 seconds
lru_size = 400
400
 - unlinked 0 (time 1787707096 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 884 (time 1787707208.96 total 10.00 last 88.39)
 - open/close 1695 (time 1787707218.96 total 20.01 last 81.06)
 - open/close 2445 (time 1787707228.96 total 30.01 last 74.99)
 - open/close 3125 (time 1787707238.97 total 40.01 last 67.96)
 - open/close 3900 (time 1787707248.99 total 50.03 last 77.34)
 - open/close 4637 (time 1787707258.99 total 60.03 last 73.70)
 - open/close 5428 (time 1787707269.00 total 70.05 last 78.99)
 - open/close 6257 (time 1787707279.01 total 80.05 last 82.84)
 - open/close 7149 (time 1787707289.02 total 90.06 last 89.14)
 - open/close 7989 (time 1787707299.03 total 100.07 last 83.91)
total: 8000 open/close in 100.19 seconds: 79.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 4052
3955
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1787707404 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second