== sanity test 124b: lru resize (performance test) ================================================================================= 13:09:11 (1789146551)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 908 (time 1789146566.67 total 10.00 last 90.79)
 - open/close 1818 (time 1789146576.68 total 20.01 last 90.94)
 - open/close 2859 (time 1789146586.68 total 30.01 last 104.06)
 - open/close 3777 (time 1789146596.68 total 40.01 last 91.79)
 - open/close 4746 (time 1789146606.69 total 50.02 last 96.83)
 - open/close 5718 (time 1789146616.70 total 60.03 last 97.11)
 - open/close 6595 (time 1789146626.71 total 70.04 last 87.58)
 - open/close 7445 (time 1789146636.72 total 80.05 last 84.95)
total: 8000 open/close in 85.43 seconds: 93.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 133 seconds
lru_size = 400
400
 - unlinked 0 (time 1789146785 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 983 (time 1789146888.62 total 10.01 last 98.19)
 - open/close 1926 (time 1789146898.62 total 20.01 last 94.29)
 - open/close 2681 (time 1789146908.63 total 30.02 last 75.44)
 - open/close 3581 (time 1789146918.63 total 40.03 last 89.94)
 - open/close 4697 (time 1789146928.64 total 50.03 last 111.51)
 - open/close 5522 (time 1789146938.65 total 60.04 last 82.43)
 - open/close 6393 (time 1789146948.66 total 70.05 last 87.03)
 - open/close 7216 (time 1789146958.66 total 80.06 last 82.26)
total: 8000 open/close in 88.68 seconds: 90.21 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1789147070 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second