== sanity test 124b: lru resize (performance test) ================================================================================= 11:59:37 (1790956777)
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 982 (time 1790956790.78 total 10.01 last 98.14)
 - open/close 2014 (time 1790956800.79 total 20.01 last 103.20)
 - open/close 2972 (time 1790956810.79 total 30.01 last 95.76)
 - open/close 3979 (time 1790956820.79 total 40.01 last 100.67)
 - open/close 4950 (time 1790956830.80 total 50.02 last 97.02)
 - open/close 5930 (time 1790956840.81 total 60.03 last 97.89)
 - open/close 6952 (time 1790956850.81 total 70.03 last 102.19)
 - open/close 7939 (time 1790956860.82 total 80.04 last 98.64)
total: 8000 open/close in 80.67 seconds: 99.17 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 110 seconds
lru_size = 400
400
 - unlinked 0 (time 1790956976 ; total 0 ; last 0)
total: 8000 unlinks in 42 seconds: 190.476196 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1207 (time 1790957031.19 total 10.01 last 120.64)
 - open/close 2318 (time 1790957041.19 total 20.01 last 111.08)
 - open/close 3374 (time 1790957051.19 total 30.01 last 105.58)
 - open/close 4415 (time 1790957061.19 total 40.01 last 104.06)
 - open/close 5561 (time 1790957071.19 total 50.01 last 114.60)
 - open/close 6696 (time 1790957081.20 total 60.02 last 113.43)
 - open/close 7739 (time 1790957091.20 total 70.02 last 104.26)
total: 8000 open/close in 72.69 seconds: 110.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 4052
3955
ls -la is 54% faster with lru resize enabled
 - unlinked 0 (time 1790957158 ; total 0 ; last 0)
total: 8000 unlinks in 42 seconds: 190.476196 unlinks/second