== sanity test 124b: lru resize (performance test) ================================================================================= 14:22:22 (1789064542)
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 840 (time 1789064556.25 total 10.01 last 83.93)
 - open/close 1754 (time 1789064566.26 total 20.01 last 91.36)
 - open/close 2641 (time 1789064576.26 total 30.01 last 88.68)
 - open/close 3560 (time 1789064586.26 total 40.02 last 91.87)
 - open/close 4541 (time 1789064596.27 total 50.02 last 98.06)
 - open/close 5345 (time 1789064606.27 total 60.03 last 80.38)
 - open/close 6111 (time 1789064616.28 total 70.04 last 76.51)
 - open/close 6950 (time 1789064626.28 total 80.04 last 83.90)
 - open/close 7873 (time 1789064636.29 total 90.04 last 92.24)
total: 8000 open/close in 91.80 seconds: 87.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 141 seconds
lru_size = 400
400
 - unlinked 0 (time 1789064788 ; total 0 ; last 0)
total: 8000 unlinks in 84 seconds: 95.238098 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 855 (time 1789064887.06 total 10.00 last 85.46)
 - open/close 1752 (time 1789064897.07 total 20.01 last 89.67)
 - open/close 2774 (time 1789064907.07 total 30.02 last 102.13)
 - open/close 3644 (time 1789064917.09 total 40.03 last 86.88)
 - open/close 4588 (time 1789064927.10 total 50.04 last 94.32)
 - open/close 5640 (time 1789064937.10 total 60.04 last 105.13)
 - open/close 6598 (time 1789064947.10 total 70.05 last 95.79)
 - open/close 7438 (time 1789064957.10 total 80.05 last 84.00)
total: 8000 open/close in 85.52 seconds: 93.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4006
4001
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1789065061 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second