== sanity test 124b: lru resize (performance test) ================================================================================= 12:00:17 (1789142417)
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 888 (time 1789142432.67 total 10.00 last 88.80)
 - open/close 1648 (time 1789142442.68 total 20.01 last 75.89)
 - open/close 2472 (time 1789142452.69 total 30.02 last 82.33)
 - open/close 3347 (time 1789142462.70 total 40.03 last 87.43)
 - open/close 4167 (time 1789142472.70 total 50.04 last 81.96)
 - open/close 4999 (time 1789142482.71 total 60.04 last 83.19)
 - open/close 5816 (time 1789142492.72 total 70.05 last 81.61)
 - open/close 6562 (time 1789142502.73 total 80.06 last 74.51)
 - open/close 7312 (time 1789142512.73 total 90.06 last 74.99)
total: 8000 open/close in 98.54 seconds: 81.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1789142684 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 776 (time 1789142797.27 total 10.01 last 77.51)
 - open/close 1611 (time 1789142807.28 total 20.03 last 83.38)
 - open/close 2470 (time 1789142817.28 total 30.03 last 85.88)
 - open/close 3353 (time 1789142827.30 total 40.04 last 88.17)
 - open/close 4264 (time 1789142837.30 total 50.04 last 91.09)
 - open/close 5146 (time 1789142847.30 total 60.05 last 88.17)
 - open/close 6033 (time 1789142857.31 total 70.05 last 88.65)
 - open/close 6922 (time 1789142867.32 total 80.07 last 88.79)
 - open/close 7777 (time 1789142877.33 total 90.07 last 85.45)
total: 8000 open/close in 92.31 seconds: 86.67 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 50% faster with lru resize enabled
 - unlinked 0 (time 1789142974 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second