== sanity test 124b: lru resize (performance test) ================================================================================= 16:56:47 (1783976207)
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 712 (time 1783976222.11 total 10.00 last 71.18)
 - open/close 1397 (time 1783976232.11 total 20.01 last 68.47)
 - open/close 2123 (time 1783976242.12 total 30.02 last 72.51)
 - open/close 2872 (time 1783976252.14 total 40.03 last 74.81)
 - open/close 3655 (time 1783976262.15 total 50.04 last 78.21)
 - open/close 4364 (time 1783976272.16 total 60.05 last 70.82)
 - open/close 5037 (time 1783976282.16 total 70.06 last 67.28)
 - open/close 5716 (time 1783976292.18 total 80.07 last 67.79)
 - open/close 6368 (time 1783976302.20 total 90.09 last 65.09)
 - open/close 6994 (time 1783976312.20 total 100.09 last 62.58)
 - open/close 7667 (time 1783976322.21 total 110.11 last 67.21)
total: 8000 open/close in 115.11 seconds: 69.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 165 seconds
lru_size = 400
400
 - unlinked 0 (time 1783976504 ; total 0 ; last 0)
total: 8000 unlinks in 118 seconds: 67.796608 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 699 (time 1783976638.04 total 10.01 last 69.84)
 - open/close 1440 (time 1783976648.05 total 20.02 last 74.04)
 - open/close 2092 (time 1783976658.07 total 30.03 last 65.10)
 - open/close 2733 (time 1783976668.08 total 40.04 last 64.05)
 - open/close 3370 (time 1783976678.09 total 50.05 last 63.63)
 - open/close 4073 (time 1783976688.09 total 60.06 last 70.27)
 - open/close 4843 (time 1783976698.10 total 70.07 last 76.91)
 - open/close 5530 (time 1783976708.11 total 80.08 last 68.63)
 - open/close 6240 (time 1783976718.12 total 90.08 last 70.96)
 - open/close 7012 (time 1783976728.13 total 100.10 last 77.09)
 - open/close 7769 (time 1783976738.14 total 110.10 last 75.69)
total: 8000 open/close in 113.12 seconds: 70.72 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1783976849 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second