== sanity test 124b: lru resize (performance test) ================================================================================= 14:50:01 (1787856601)
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 949 (time 1787856615.87 total 10.01 last 94.85)
 - open/close 1862 (time 1787856625.88 total 20.02 last 91.21)
 - open/close 2662 (time 1787856635.89 total 30.02 last 79.93)
 - open/close 3573 (time 1787856645.90 total 40.04 last 90.99)
 - open/close 4457 (time 1787856655.90 total 50.04 last 88.34)
 - open/close 5367 (time 1787856665.91 total 60.05 last 90.94)
 - open/close 6308 (time 1787856675.91 total 70.05 last 94.08)
 - open/close 7184 (time 1787856685.92 total 80.06 last 87.55)
total: 8000 open/close in 89.13 seconds: 89.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 136 seconds
lru_size = 400
400
 - unlinked 0 (time 1787856840 ; total 0 ; last 0)
total: 8000 unlinks in 91 seconds: 87.912086 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 947 (time 1787856946.37 total 10.00 last 94.67)
 - open/close 1866 (time 1787856956.38 total 20.01 last 91.83)
 - open/close 2761 (time 1787856966.38 total 30.01 last 89.50)
 - open/close 3711 (time 1787856976.39 total 40.02 last 94.93)
 - open/close 4633 (time 1787856986.40 total 50.03 last 92.11)
 - open/close 5477 (time 1787856996.40 total 60.03 last 84.35)
 - open/close 6377 (time 1787857006.41 total 70.04 last 89.96)
 - open/close 7241 (time 1787857016.41 total 80.04 last 86.38)
total: 8000 open/close in 88.33 seconds: 90.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 4052
3955
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1787857122 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second