== sanity test 124b: lru resize (performance test) ================================================================================= 04:44:46 (1782636286)
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 3206 (time 1782636300.42 total 10.00 last 320.51)
 - open/close 6224 (time 1782636310.42 total 20.01 last 301.70)
total: 8000 open/close in 26.13 seconds: 306.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1782636479 ; total 0 ; last 0)
total: 8000 unlinks in 121 seconds: 66.115700 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 782 (time 1782636614.86 total 10.01 last 78.09)
 - open/close 1557 (time 1782636624.87 total 20.02 last 77.45)
 - open/close 2302 (time 1782636634.87 total 30.02 last 74.50)
 - open/close 3031 (time 1782636644.87 total 40.03 last 72.84)
 - open/close 3740 (time 1782636654.89 total 50.04 last 70.81)
 - open/close 4502 (time 1782636664.89 total 60.05 last 76.16)
 - open/close 5226 (time 1782636674.90 total 70.06 last 72.35)
 - open/close 5922 (time 1782636684.91 total 80.06 last 69.55)
 - open/close 6576 (time 1782636694.92 total 90.08 last 65.32)
 - open/close 7340 (time 1782636704.92 total 100.08 last 76.39)
total: 8000 open/close in 108.86 seconds: 73.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1782636818 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second