== sanity test 124b: lru resize (performance test) ================================================================================= 10:08:13 (1786111693)
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 837 (time 1786111707.78 total 10.01 last 83.64)
 - open/close 1776 (time 1786111717.78 total 20.02 last 93.82)
 - open/close 2650 (time 1786111727.79 total 30.02 last 87.34)
 - open/close 3616 (time 1786111737.79 total 40.02 last 96.60)
 - open/close 4529 (time 1786111747.79 total 50.03 last 91.27)
 - open/close 5425 (time 1786111757.79 total 60.03 last 89.59)
 - open/close 6264 (time 1786111767.80 total 70.03 last 83.86)
 - open/close 7044 (time 1786111777.80 total 80.04 last 77.96)
 - open/close 7901 (time 1786111787.81 total 90.04 last 85.67)
total: 8000 open/close in 91.46 seconds: 87.47 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 147 seconds
lru_size = 400
400
 - unlinked 0 (time 1786111946 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 975 (time 1786112053.88 total 10.00 last 97.49)
 - open/close 1832 (time 1786112063.90 total 20.02 last 85.53)
 - open/close 2804 (time 1786112073.91 total 30.03 last 97.11)
 - open/close 3806 (time 1786112083.91 total 40.03 last 100.19)
 - open/close 4691 (time 1786112093.92 total 50.04 last 88.42)
 - open/close 5551 (time 1786112103.93 total 60.04 last 85.97)
 - open/close 6367 (time 1786112113.93 total 70.05 last 81.55)
 - open/close 7069 (time 1786112123.93 total 80.05 last 70.18)
 - open/close 7812 (time 1786112133.94 total 90.05 last 74.28)
total: 8000 open/close in 92.69 seconds: 86.31 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1786112235 ; total 0 ; last 0)
total: 8000 unlinks in 50 seconds: 160.000000 unlinks/second