== sanity test 124b: lru resize (performance test) ================================================================================= 11:16:10 (1784128570)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 763 (time 1784128584.51 total 10.01 last 76.26)
 - open/close 1500 (time 1784128594.51 total 20.01 last 73.67)
 - open/close 2187 (time 1784128604.51 total 30.01 last 68.69)
 - open/close 3024 (time 1784128614.52 total 40.01 last 83.67)
 - open/close 3797 (time 1784128624.52 total 50.02 last 77.26)
 - open/close 4555 (time 1784128634.53 total 60.02 last 75.76)
 - open/close 5347 (time 1784128644.54 total 70.03 last 79.14)
 - open/close 6080 (time 1784128654.54 total 80.04 last 73.27)
 - open/close 6796 (time 1784128664.55 total 90.04 last 71.55)
 - open/close 7503 (time 1784128674.56 total 100.05 last 70.65)
total: 8000 open/close in 106.61 seconds: 75.04 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 117 seconds
lru_size = 400
400
 - unlinked 0 (time 1784128806 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 895 (time 1784128905.64 total 10.00 last 89.48)
 - open/close 1760 (time 1784128915.65 total 20.01 last 86.44)
 - open/close 2946 (time 1784128925.65 total 30.01 last 118.58)
 - open/close 4205 (time 1784128935.65 total 40.01 last 125.85)
 - open/close 5363 (time 1784128945.65 total 50.02 last 115.76)
 - open/close 6591 (time 1784128955.65 total 60.02 last 122.79)
 - open/close 7958 (time 1784128965.66 total 70.02 last 136.65)
total: 8000 open/close in 70.26 seconds: 113.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 48 seconds
lru_size = 4052
3955
ls -la is 58% faster with lru resize enabled
 - unlinked 0 (time 1784129023 ; total 0 ; last 0)
total: 8000 unlinks in 23 seconds: 347.826080 unlinks/second