== sanity test 124b: lru resize (performance test) ================================================================================= 23:12:54 (1786417974)
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 753 (time 1786417989.30 total 10.00 last 75.27)
 - open/close 1556 (time 1786417999.31 total 20.01 last 80.25)
 - open/close 2311 (time 1786418009.31 total 30.02 last 75.46)
 - open/close 3066 (time 1786418019.32 total 40.02 last 75.45)
 - open/close 3821 (time 1786418029.32 total 50.02 last 75.49)
 - open/close 4589 (time 1786418039.33 total 60.03 last 76.77)
 - open/close 5423 (time 1786418049.33 total 70.03 last 83.38)
 - open/close 6189 (time 1786418059.34 total 80.04 last 76.54)
 - open/close 6962 (time 1786418069.34 total 90.05 last 77.24)
 - open/close 7778 (time 1786418079.35 total 100.05 last 81.55)
total: 8000 open/close in 102.72 seconds: 77.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 133 seconds
lru_size = 400
400
 - unlinked 0 (time 1786418225 ; total 0 ; last 0)
total: 8000 unlinks in 109 seconds: 73.394493 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 784 (time 1786418349.80 total 10.00 last 78.40)
 - open/close 1528 (time 1786418359.80 total 20.00 last 74.39)
 - open/close 2371 (time 1786418369.81 total 30.01 last 84.25)
 - open/close 3193 (time 1786418379.81 total 40.01 last 82.19)
 - open/close 3954 (time 1786418389.81 total 50.01 last 76.10)
 - open/close 4768 (time 1786418399.81 total 60.01 last 81.37)
 - open/close 5561 (time 1786418409.82 total 70.02 last 79.27)
 - open/close 6335 (time 1786418419.83 total 80.03 last 77.33)
 - open/close 7167 (time 1786418429.83 total 90.03 last 83.14)
 - open/close 7924 (time 1786418439.84 total 100.03 last 75.68)
total: 8000 open/close in 101.07 seconds: 79.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 117 seconds
lru_size = 4007
4002
ls -la is 12% faster with lru resize enabled
 - unlinked 0 (time 1786418581 ; total 0 ; last 0)
total: 8000 unlinks in 70 seconds: 114.285713 unlinks/second