== sanity test 124b: lru resize (performance test) ================================================================================= 13:57:52 (1787853472)
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 836 (time 1787853487.66 total 10.01 last 83.51)
 - open/close 1633 (time 1787853497.67 total 20.02 last 79.65)
 - open/close 2429 (time 1787853507.67 total 30.02 last 79.58)
 - open/close 3254 (time 1787853517.68 total 40.02 last 82.47)
 - open/close 4094 (time 1787853527.68 total 50.03 last 83.98)
 - open/close 4927 (time 1787853537.69 total 60.03 last 83.24)
 - open/close 5764 (time 1787853547.69 total 70.04 last 83.65)
 - open/close 6618 (time 1787853557.70 total 80.04 last 85.35)
 - open/close 7387 (time 1787853567.71 total 90.06 last 76.80)
total: 8000 open/close in 99.41 seconds: 80.47 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 144 seconds
lru_size = 400
400
 - unlinked 0 (time 1787853732 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 816 (time 1787853845.60 total 10.01 last 81.52)
 - open/close 1549 (time 1787853855.61 total 20.02 last 73.23)
 - open/close 2378 (time 1787853865.63 total 30.04 last 82.72)
 - open/close 3060 (time 1787853875.63 total 40.05 last 68.17)
 - open/close 3716 (time 1787853885.64 total 50.05 last 65.59)
 - open/close 4496 (time 1787853895.65 total 60.06 last 77.91)
 - open/close 5247 (time 1787853905.66 total 70.07 last 74.99)
 - open/close 6123 (time 1787853915.67 total 80.08 last 87.56)
 - open/close 7131 (time 1787853925.68 total 90.09 last 100.68)
total: 8000 open/close in 99.30 seconds: 80.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4052
3955
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1787854037 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second