== sanity test 124b: lru resize (performance test) ================================================================================= 01:05:20 (1746162320)
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 1190 (time 1746162332.08 total 10.00 last 118.99)
 - open/close 2464 (time 1746162342.08 total 20.01 last 127.33)
 - open/close 3838 (time 1746162352.09 total 30.01 last 137.36)
 - open/close 5098 (time 1746162362.09 total 40.02 last 125.92)
 - open/close 6119 (time 1746162372.11 total 50.03 last 101.98)
 - open/close 7173 (time 1746162382.11 total 60.03 last 105.34)
total: 8000 open/close in 66.02 seconds: 121.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 400
400
 - unlinked 0 (time 1746162480 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 890 (time 1746162546.37 total 10.00 last 88.97)
 - open/close 1836 (time 1746162556.37 total 20.01 last 94.57)
 - open/close 2874 (time 1746162566.37 total 30.01 last 103.80)
 - open/close 4112 (time 1746162576.38 total 40.01 last 123.77)
 - open/close 5212 (time 1746162586.38 total 50.01 last 109.99)
 - open/close 6475 (time 1746162596.38 total 60.01 last 126.26)
 - open/close 7750 (time 1746162606.38 total 70.01 last 127.48)
total: 8000 open/close in 72.26 seconds: 110.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 33 seconds
lru_size = 4006
4001
ls -la is 62% faster with lru resize enabled
 - unlinked 0 (time 1746162650 ; total 0 ; last 0)
total: 8000 unlinks in 28 seconds: 285.714294 unlinks/second