== sanity test 124b: lru resize (performance test) ================================================================================= 12:51:03 (1790700663)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 820 (time 1790700679.00 total 10.01 last 81.94)
 - open/close 1701 (time 1790700689.01 total 20.01 last 88.04)
 - open/close 2360 (time 1790700699.02 total 30.03 last 65.82)
 - open/close 3223 (time 1790700709.02 total 40.03 last 86.29)
 - open/close 4003 (time 1790700719.04 total 50.04 last 77.90)
 - open/close 4877 (time 1790700729.05 total 60.05 last 87.32)
 - open/close 5700 (time 1790700739.05 total 70.05 last 82.29)
 - open/close 6487 (time 1790700749.06 total 80.06 last 78.61)
 - open/close 7394 (time 1790700759.06 total 90.07 last 90.63)
total: 8000 open/close in 98.02 seconds: 81.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1790700927 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 842 (time 1790701038.74 total 10.01 last 84.13)
 - open/close 1702 (time 1790701048.75 total 20.02 last 85.88)
 - open/close 2567 (time 1790701058.75 total 30.02 last 86.49)
 - open/close 3437 (time 1790701068.75 total 40.02 last 86.99)
 - open/close 4292 (time 1790701078.76 total 50.03 last 85.48)
 - open/close 5163 (time 1790701088.78 total 60.05 last 86.90)
 - open/close 6064 (time 1790701098.80 total 70.07 last 89.93)
 - open/close 6873 (time 1790701108.83 total 80.10 last 80.68)
 - open/close 7695 (time 1790701118.84 total 90.11 last 82.11)
total: 8000 open/close in 93.67 seconds: 85.41 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4052
3955
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1790701220 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second