== sanity test 124b: lru resize (performance test) ================================================================================= 06:19:06 (1787739546)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 809 (time 1787739560.27 total 10.01 last 80.79)
 - open/close 1635 (time 1787739570.27 total 20.02 last 82.58)
 - open/close 2480 (time 1787739580.27 total 30.02 last 84.48)
 - open/close 3193 (time 1787739590.28 total 40.02 last 71.26)
 - open/close 3921 (time 1787739600.37 total 50.11 last 72.17)
 - open/close 4684 (time 1787739610.37 total 60.11 last 76.30)
 - open/close 5484 (time 1787739620.37 total 70.11 last 79.97)
 - open/close 6304 (time 1787739630.37 total 80.11 last 82.00)
 - open/close 7116 (time 1787739640.37 total 90.12 last 81.18)
 - open/close 7907 (time 1787739650.38 total 100.12 last 79.08)
total: 8000 open/close in 101.35 seconds: 78.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 140 seconds
lru_size = 400
400
 - unlinked 0 (time 1787739800 ; total 0 ; last 0)
total: 8000 unlinks in 109 seconds: 73.394493 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 807 (time 1787739923.32 total 10.00 last 80.67)
 - open/close 1654 (time 1787739933.32 total 20.01 last 84.65)
 - open/close 2513 (time 1787739943.37 total 30.06 last 85.49)
 - open/close 3386 (time 1787739953.37 total 40.06 last 87.25)
 - open/close 4220 (time 1787739963.38 total 50.07 last 83.34)
 - open/close 5101 (time 1787739973.39 total 60.08 last 88.04)
 - open/close 5916 (time 1787739983.40 total 70.08 last 81.43)
 - open/close 6726 (time 1787739993.40 total 80.09 last 80.96)
 - open/close 7491 (time 1787740003.40 total 90.09 last 76.50)
total: 8000 open/close in 96.21 seconds: 83.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 69 seconds
lru_size = 4006
4001
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1787740097 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second