== sanity test 124b: lru resize (performance test) ================================================================================= 11:53:39 (1789142019)
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 698 (time 1789142036.32 total 10.02 last 69.63)
 - open/close 1508 (time 1789142046.32 total 20.03 last 80.96)
 - open/close 2398 (time 1789142056.33 total 30.04 last 88.93)
 - open/close 3301 (time 1789142066.33 total 40.04 last 90.24)
 - open/close 4025 (time 1789142076.34 total 50.05 last 72.39)
 - open/close 4865 (time 1789142086.34 total 60.05 last 83.98)
 - open/close 5696 (time 1789142096.35 total 70.06 last 83.02)
 - open/close 6635 (time 1789142106.35 total 80.06 last 93.88)
 - open/close 7670 (time 1789142116.36 total 90.07 last 103.39)
total: 8000 open/close in 94.81 seconds: 84.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 146 seconds
lru_size = 400
400
 - unlinked 0 (time 1789142278 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 859 (time 1789142394.99 total 10.00 last 85.88)
 - open/close 1657 (time 1789142404.99 total 20.00 last 79.80)
 - open/close 2589 (time 1789142414.99 total 30.00 last 93.18)
 - open/close 3501 (time 1789142425.01 total 40.02 last 91.09)
 - open/close 4591 (time 1789142435.01 total 50.02 last 108.92)
 - open/close 5719 (time 1789142445.01 total 60.02 last 112.79)
 - open/close 6676 (time 1789142455.02 total 70.03 last 95.66)
 - open/close 7505 (time 1789142465.02 total 80.03 last 82.89)
total: 8000 open/close in 85.24 seconds: 93.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1789142580 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second