== sanity test 124b: lru resize (performance test) ================================================================================= 02:32:15 (1786948335)
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 667 (time 1786948350.21 total 10.01 last 66.62)
 - open/close 1361 (time 1786948360.21 total 20.02 last 69.38)
 - open/close 2178 (time 1786948370.22 total 30.02 last 81.63)
 - open/close 2980 (time 1786948380.23 total 40.04 last 80.10)
 - open/close 3751 (time 1786948390.24 total 50.04 last 77.05)
 - open/close 4463 (time 1786948400.25 total 60.05 last 71.11)
 - open/close 5161 (time 1786948410.26 total 70.06 last 69.73)
 - open/close 5936 (time 1786948420.27 total 80.07 last 77.44)
 - open/close 6659 (time 1786948430.27 total 90.08 last 72.28)
 - open/close 7425 (time 1786948440.28 total 100.08 last 76.53)
total: 8000 open/close in 108.28 seconds: 73.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 115 seconds
lru_size = 400
400
 - unlinked 0 (time 1786948575 ; total 0 ; last 0)
total: 8000 unlinks in 115 seconds: 69.565216 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 823 (time 1786948706.78 total 10.00 last 82.29)
 - open/close 1624 (time 1786948716.79 total 20.01 last 79.99)
 - open/close 2423 (time 1786948726.80 total 30.02 last 79.85)
 - open/close 3203 (time 1786948736.80 total 40.02 last 77.98)
 - open/close 4042 (time 1786948746.81 total 50.03 last 83.83)
 - open/close 4882 (time 1786948756.81 total 60.04 last 83.95)
 - open/close 5772 (time 1786948766.82 total 70.05 last 88.94)
 - open/close 6591 (time 1786948776.82 total 80.05 last 81.88)
 - open/close 7293 (time 1786948786.83 total 90.06 last 70.14)
 - open/close 7820 (time 1786948796.84 total 100.07 last 52.65)
total: 8000 open/close in 102.89 seconds: 77.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 19% faster with lru resize enabled
 - unlinked 0 (time 1786948915 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second