== sanity test 124b: lru resize (performance test) ================================================================================= 07:23:09 (1787916189)
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 905 (time 1787916204.24 total 10.00 last 90.46)
 - open/close 1823 (time 1787916214.25 total 20.01 last 91.70)
 - open/close 2733 (time 1787916224.25 total 30.02 last 90.99)
 - open/close 3656 (time 1787916234.25 total 40.02 last 92.26)
 - open/close 4596 (time 1787916244.27 total 50.04 last 93.86)
 - open/close 5509 (time 1787916254.28 total 60.04 last 91.21)
 - open/close 6393 (time 1787916264.28 total 70.05 last 88.37)
 - open/close 7309 (time 1787916274.29 total 80.06 last 91.47)
total: 8000 open/close in 87.59 seconds: 91.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1787916429 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 905 (time 1787916539.61 total 10.01 last 90.40)
 - open/close 1840 (time 1787916549.62 total 20.01 last 93.49)
 - open/close 2523 (time 1787916559.62 total 30.02 last 68.24)
 - open/close 3079 (time 1787916569.64 total 40.03 last 55.53)
 - open/close 3941 (time 1787916579.64 total 50.04 last 86.17)
 - open/close 4811 (time 1787916589.65 total 60.04 last 86.96)
 - open/close 5745 (time 1787916599.65 total 70.04 last 93.38)
 - open/close 6668 (time 1787916609.65 total 80.05 last 92.29)
 - open/close 7628 (time 1787916619.65 total 90.05 last 95.96)
total: 8000 open/close in 93.38 seconds: 85.68 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1787916717 ; total 0 ; last 0)
total: 8000 unlinks in 49 seconds: 163.265305 unlinks/second