== sanity test 124b: lru resize (performance test) ================================================================================= 19:27:30 (1788650850)
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 644 (time 1788650866.73 total 10.00 last 64.37)
 - open/close 1458 (time 1788650876.75 total 20.02 last 81.25)
 - open/close 2288 (time 1788650886.76 total 30.03 last 82.92)
 - open/close 2980 (time 1788650896.77 total 40.04 last 69.13)
 - open/close 3623 (time 1788650906.80 total 50.07 last 64.13)
 - open/close 4293 (time 1788650916.81 total 60.08 last 66.90)
 - open/close 5017 (time 1788650926.83 total 70.11 last 72.24)
 - open/close 5535 (time 1788650936.86 total 80.13 last 51.68)
 - open/close 6145 (time 1788650946.86 total 90.13 last 60.99)
 - open/close 6981 (time 1788650956.87 total 100.14 last 83.49)
 - open/close 7671 (time 1788650966.88 total 110.15 last 68.95)
total: 8000 open/close in 115.32 seconds: 69.37 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 161 seconds
lru_size = 400
400
 - unlinked 0 (time 1788651147 ; total 1 ; last 1)
total: 8000 unlinks in 107 seconds: 74.766357 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 816 (time 1788651269.37 total 10.01 last 81.55)
 - open/close 1630 (time 1788651279.37 total 20.01 last 81.37)
 - open/close 2470 (time 1788651289.38 total 30.01 last 83.98)
 - open/close 3271 (time 1788651299.38 total 40.02 last 80.08)
 - open/close 4027 (time 1788651309.39 total 50.03 last 75.49)
 - open/close 4759 (time 1788651319.40 total 60.04 last 73.17)
 - open/close 5579 (time 1788651329.40 total 70.04 last 81.98)
 - open/close 6406 (time 1788651339.40 total 80.04 last 82.68)
 - open/close 7113 (time 1788651349.42 total 90.06 last 70.59)
 - open/close 7980 (time 1788651359.42 total 100.06 last 86.67)
total: 8000 open/close in 100.28 seconds: 79.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1788651464 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second