== sanity test 124b: lru resize (performance test) ================================================================================= 00:19:04 (1789273144)
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 886 (time 1789273159.44 total 10.01 last 88.52)
 - open/close 1671 (time 1789273169.45 total 20.03 last 78.38)
 - open/close 2485 (time 1789273179.46 total 30.03 last 81.35)
 - open/close 3331 (time 1789273189.46 total 40.03 last 84.59)
 - open/close 4092 (time 1789273199.46 total 50.03 last 76.09)
 - open/close 4889 (time 1789273209.47 total 60.04 last 79.65)
 - open/close 5657 (time 1789273219.47 total 70.05 last 76.76)
 - open/close 6488 (time 1789273229.48 total 80.05 last 83.06)
 - open/close 7267 (time 1789273239.48 total 90.05 last 77.88)
 - open/close 7945 (time 1789273249.51 total 100.08 last 67.63)
total: 8000 open/close in 100.85 seconds: 79.33 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 166 seconds
lru_size = 400
400
 - unlinked 0 (time 1789273428 ; total 0 ; last 0)
total: 8000 unlinks in 111 seconds: 72.072075 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 586 (time 1789273554.99 total 10.00 last 58.59)
 - open/close 1273 (time 1789273565.00 total 20.02 last 68.58)
 - open/close 2128 (time 1789273575.01 total 30.03 last 85.41)
 - open/close 2916 (time 1789273585.02 total 40.03 last 78.77)
 - open/close 3530 (time 1789273595.02 total 50.04 last 61.38)
 - open/close 4337 (time 1789273605.03 total 60.04 last 80.64)
 - open/close 5081 (time 1789273615.03 total 70.05 last 74.35)
 - open/close 5908 (time 1789273625.04 total 80.05 last 82.70)
 - open/close 6659 (time 1789273635.04 total 90.06 last 75.03)
 - open/close 7303 (time 1789273645.05 total 100.07 last 64.36)
total: 8000 open/close in 108.49 seconds: 73.74 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 94 seconds
lru_size = 4006
4001
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1789273766 ; total 0 ; last 0)
total: 8000 unlinks in 71 seconds: 112.676056 unlinks/second