== sanity test 124b: lru resize (performance test) ================================================================================= 08:29:32 (1789388972)
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 875 (time 1789388987.65 total 10.01 last 87.45)
 - open/close 1747 (time 1789388997.65 total 20.01 last 87.17)
 - open/close 2612 (time 1789389007.66 total 30.02 last 86.43)
 - open/close 3453 (time 1789389017.66 total 40.02 last 84.06)
 - open/close 4289 (time 1789389027.67 total 50.03 last 83.53)
 - open/close 5120 (time 1789389037.69 total 60.04 last 83.00)
 - open/close 5989 (time 1789389047.70 total 70.05 last 86.80)
 - open/close 6957 (time 1789389057.70 total 80.06 last 96.73)
 - open/close 7772 (time 1789389067.71 total 90.06 last 81.48)
total: 8000 open/close in 92.46 seconds: 86.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1789389240 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 768 (time 1789389344.78 total 10.00 last 76.76)
 - open/close 1596 (time 1789389354.79 total 20.01 last 82.78)
 - open/close 2486 (time 1789389364.79 total 30.01 last 88.96)
 - open/close 3372 (time 1789389374.79 total 40.02 last 88.56)
 - open/close 4319 (time 1789389384.80 total 50.02 last 94.70)
 - open/close 5266 (time 1789389394.80 total 60.02 last 94.67)
 - open/close 6137 (time 1789389404.80 total 70.02 last 87.07)
 - open/close 7051 (time 1789389414.81 total 80.03 last 91.33)
 - open/close 7962 (time 1789389424.81 total 90.03 last 91.09)
total: 8000 open/close in 90.35 seconds: 88.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4052
3955
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1789389538 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second