== sanity test 124b: lru resize (performance test) ================================================================================= 07:41:24 (1789645284)
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 712 (time 1789645300.22 total 10.03 last 71.00)
 - open/close 1462 (time 1789645310.22 total 20.03 last 75.00)
 - open/close 2184 (time 1789645320.23 total 30.04 last 72.13)
 - open/close 2854 (time 1789645330.24 total 40.05 last 66.92)
 - open/close 3687 (time 1789645340.26 total 50.07 last 83.15)
 - open/close 4487 (time 1789645350.27 total 60.08 last 79.93)
 - open/close 5361 (time 1789645360.28 total 70.09 last 87.32)
 - open/close 6237 (time 1789645370.29 total 80.10 last 87.51)
 - open/close 7073 (time 1789645380.30 total 90.10 last 83.55)
 - open/close 7890 (time 1789645390.30 total 100.11 last 81.65)
total: 8000 open/close in 102.41 seconds: 78.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 166 seconds
lru_size = 400
400
 - unlinked 0 (time 1789645570 ; 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 796 (time 1789645680.84 total 10.00 last 79.57)
 - open/close 1405 (time 1789645690.85 total 20.01 last 60.85)
 - open/close 2055 (time 1789645700.85 total 30.02 last 64.97)
 - open/close 2763 (time 1789645710.86 total 40.02 last 70.78)
 - open/close 3497 (time 1789645720.86 total 50.02 last 73.39)
 - open/close 4135 (time 1789645730.86 total 60.02 last 63.79)
 - open/close 4928 (time 1789645740.86 total 70.02 last 79.29)
 - open/close 5636 (time 1789645750.90 total 80.06 last 70.56)
 - open/close 6273 (time 1789645760.90 total 90.06 last 63.69)
 - open/close 7055 (time 1789645770.90 total 100.07 last 78.15)
 - open/close 7789 (time 1789645780.91 total 110.08 last 73.33)
total: 8000 open/close in 112.89 seconds: 70.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1789645896 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second