== sanity test 124b: lru resize (performance test) ================================================================================= 12:34:12 (1780331652)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 868 (time 1780331668.24 total 10.00 last 86.80)
 - open/close 1727 (time 1780331678.27 total 20.03 last 85.63)
 - open/close 2721 (time 1780331688.27 total 30.04 last 99.36)
 - open/close 3714 (time 1780331698.28 total 40.04 last 99.23)
 - open/close 4580 (time 1780331708.29 total 50.05 last 86.51)
 - open/close 5364 (time 1780331718.30 total 60.06 last 78.33)
 - open/close 6143 (time 1780331728.30 total 70.07 last 77.85)
 - open/close 6975 (time 1780331738.31 total 80.07 last 83.15)
 - open/close 7811 (time 1780331748.31 total 90.08 last 83.58)
total: 8000 open/close in 92.57 seconds: 86.42 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 1780331908 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 893 (time 1780332012.38 total 10.00 last 89.27)
 - open/close 1769 (time 1780332022.38 total 20.01 last 87.58)
 - open/close 2683 (time 1780332032.39 total 30.01 last 91.36)
 - open/close 3609 (time 1780332042.39 total 40.01 last 92.59)
 - open/close 4613 (time 1780332052.40 total 50.02 last 100.32)
 - open/close 5567 (time 1780332062.40 total 60.03 last 95.34)
 - open/close 6396 (time 1780332072.41 total 70.03 last 82.86)
 - open/close 7303 (time 1780332082.41 total 80.04 last 90.65)
total: 8000 open/close in 87.96 seconds: 90.95 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 67 seconds
lru_size = 4006
4001
ls -la is 55% faster with lru resize enabled
 - unlinked 0 (time 1780332175 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second