== sanity test 124b: lru resize (performance test) ================================================================================= 19:47:49 (1781221669)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 836 (time 1781221683.88 total 10.01 last 83.52)
 - open/close 1679 (time 1781221693.88 total 20.01 last 84.28)
 - open/close 2475 (time 1781221703.88 total 30.01 last 79.58)
 - open/close 3197 (time 1781221713.89 total 40.02 last 72.14)
 - open/close 3993 (time 1781221723.89 total 50.03 last 79.57)
 - open/close 4836 (time 1781221733.91 total 60.04 last 84.18)
 - open/close 5522 (time 1781221743.92 total 70.06 last 68.47)
 - open/close 6290 (time 1781221753.93 total 80.06 last 76.80)
 - open/close 7020 (time 1781221763.93 total 90.07 last 72.93)
 - open/close 7677 (time 1781221773.96 total 100.09 last 65.54)
total: 8000 open/close in 105.32 seconds: 75.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 171 seconds
lru_size = 400
400
 - unlinked 0 (time 1781221960 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 694 (time 1781222070.84 total 10.00 last 69.39)
 - open/close 1470 (time 1781222080.85 total 20.02 last 77.49)
 - open/close 2345 (time 1781222090.86 total 30.03 last 87.42)
 - open/close 3111 (time 1781222100.87 total 40.03 last 76.57)
 - open/close 3893 (time 1781222110.87 total 50.03 last 78.20)
 - open/close 4866 (time 1781222120.89 total 60.05 last 97.10)
 - open/close 5736 (time 1781222130.90 total 70.06 last 86.91)
 - open/close 6673 (time 1781222140.93 total 80.09 last 93.43)
 - open/close 7596 (time 1781222150.94 total 90.10 last 92.18)
total: 8000 open/close in 94.80 seconds: 84.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 98 seconds
lru_size = 4052
3955
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1781222276 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second