== sanity test 124b: lru resize (performance test) ================================================================================= 20:35:30 (1786754130)
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 877 (time 1786754145.91 total 10.01 last 87.65)
 - open/close 1750 (time 1786754155.92 total 20.01 last 87.25)
 - open/close 2682 (time 1786754165.92 total 30.02 last 93.14)
 - open/close 3485 (time 1786754175.96 total 40.06 last 79.99)
 - open/close 4206 (time 1786754185.97 total 50.07 last 72.03)
 - open/close 4961 (time 1786754195.99 total 60.08 last 75.40)
 - open/close 5878 (time 1786754205.99 total 70.09 last 91.64)
 - open/close 6827 (time 1786754215.99 total 80.09 last 94.90)
 - open/close 7722 (time 1786754226.00 total 90.09 last 89.43)
total: 8000 open/close in 92.65 seconds: 86.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1786754391 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 924 (time 1786754493.91 total 10.02 last 92.24)
 - open/close 1666 (time 1786754503.92 total 20.03 last 74.13)
 - open/close 2440 (time 1786754513.92 total 30.03 last 77.38)
 - open/close 3241 (time 1786754523.93 total 40.03 last 80.07)
 - open/close 4094 (time 1786754533.94 total 50.05 last 85.18)
 - open/close 5005 (time 1786754543.95 total 60.05 last 91.03)
 - open/close 6001 (time 1786754553.95 total 70.06 last 99.58)
 - open/close 6852 (time 1786754563.95 total 80.06 last 85.09)
 - open/close 7789 (time 1786754573.96 total 90.06 last 93.64)
total: 8000 open/close in 92.88 seconds: 86.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4052
3955
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1786754678 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second