== sanity test 124b: lru resize (performance test) ================================================================================= 03:04:01 (1786950241)
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 855 (time 1786950256.21 total 10.00 last 85.47)
 - open/close 1615 (time 1786950266.21 total 20.00 last 76.00)
 - open/close 2365 (time 1786950276.22 total 30.01 last 74.93)
 - open/close 3210 (time 1786950286.22 total 40.01 last 84.49)
 - open/close 4075 (time 1786950296.22 total 50.01 last 86.50)
 - open/close 4930 (time 1786950306.23 total 60.02 last 85.43)
 - open/close 5715 (time 1786950316.23 total 70.03 last 78.43)
 - open/close 6498 (time 1786950326.24 total 80.04 last 78.26)
 - open/close 7102 (time 1786950336.25 total 90.04 last 60.36)
 - open/close 7815 (time 1786950346.26 total 100.06 last 71.19)
total: 8000 open/close in 102.79 seconds: 77.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 400
400
 - unlinked 0 (time 1786950460 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 699 (time 1786950577.33 total 10.01 last 69.86)
 - open/close 1539 (time 1786950587.33 total 20.01 last 83.98)
 - open/close 2374 (time 1786950597.34 total 30.02 last 83.44)
 - open/close 3216 (time 1786950607.34 total 40.02 last 84.17)
 - open/close 4057 (time 1786950617.35 total 50.03 last 84.01)
 - open/close 4963 (time 1786950627.36 total 60.04 last 90.52)
 - open/close 5771 (time 1786950637.37 total 70.04 last 80.76)
 - open/close 6689 (time 1786950647.37 total 80.05 last 91.73)
 - open/close 7595 (time 1786950657.37 total 90.05 last 90.58)
total: 8000 open/close in 94.33 seconds: 84.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4006
4001
ls -la is 7% faster with lru resize enabled
 - unlinked 0 (time 1786950777 ; total 0 ; last 0)
total: 8000 unlinks in 71 seconds: 112.676056 unlinks/second