== sanity test 124b: lru resize (performance test) ================================================================================= 05:19:04 (1753435144)
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 1117 (time 1753435157.86 total 10.01 last 111.56)
 - open/close 2223 (time 1753435167.86 total 20.02 last 110.56)
 - open/close 3257 (time 1753435177.87 total 30.02 last 103.33)
 - open/close 4337 (time 1753435187.88 total 40.03 last 107.92)
 - open/close 5386 (time 1753435197.88 total 50.03 last 104.89)
 - open/close 6468 (time 1753435207.88 total 60.03 last 108.18)
 - open/close 7690 (time 1753435217.88 total 70.03 last 122.19)
total: 8000 open/close in 72.77 seconds: 109.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 101 seconds
lru_size = 400
400
 - unlinked 0 (time 1753435326 ; total 0 ; last 0)
total: 8000 unlinks in 50 seconds: 160.000000 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1339 (time 1753435389.56 total 10.00 last 133.88)
 - open/close 2728 (time 1753435399.56 total 20.01 last 138.82)
 - open/close 4059 (time 1753435409.57 total 30.01 last 133.06)
 - open/close 5532 (time 1753435419.57 total 40.01 last 147.27)
 - open/close 6887 (time 1753435429.57 total 50.02 last 135.47)
total: 8000 open/close in 56.39 seconds: 141.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 57 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1753435502 ; total 0 ; last 0)
total: 8000 unlinks in 33 seconds: 242.424240 unlinks/second