== sanity test 124b: lru resize (performance test) ================================================================================= 20:06:10 (1789085170)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 755 (time 1789085185.29 total 10.00 last 75.47)
 - open/close 1520 (time 1789085195.29 total 20.00 last 76.50)
 - open/close 2309 (time 1789085205.29 total 30.01 last 78.87)
 - open/close 3138 (time 1789085215.31 total 40.03 last 82.75)
 - open/close 3958 (time 1789085225.32 total 50.03 last 81.95)
 - open/close 4763 (time 1789085235.33 total 60.04 last 80.42)
 - open/close 5588 (time 1789085245.34 total 70.05 last 82.42)
 - open/close 6442 (time 1789085255.35 total 80.06 last 85.31)
 - open/close 7169 (time 1789085265.35 total 90.06 last 72.70)
 - open/close 7883 (time 1789085275.35 total 100.07 last 71.38)
total: 8000 open/close in 101.31 seconds: 78.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 158 seconds
lru_size = 400
400
 - unlinked 0 (time 1789085445 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 781 (time 1789085563.10 total 10.00 last 78.10)
 - open/close 1608 (time 1789085573.10 total 20.01 last 82.65)
 - open/close 2472 (time 1789085583.11 total 30.01 last 86.38)
 - open/close 3328 (time 1789085593.13 total 40.03 last 85.43)
 - open/close 4030 (time 1789085603.13 total 50.04 last 70.15)
 - open/close 4831 (time 1789085613.13 total 60.04 last 80.09)
 - open/close 5664 (time 1789085623.14 total 70.04 last 83.28)
 - open/close 6482 (time 1789085633.14 total 80.04 last 81.79)
 - open/close 7283 (time 1789085643.15 total 90.05 last 80.04)
total: 8000 open/close in 99.19 seconds: 80.66 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 40% faster with lru resize enabled
 - unlinked 0 (time 1789085773 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second