== sanity test 124b: lru resize (performance test) ================================================================================= 13:27:05 (1782494825)
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 830 (time 1782494840.67 total 10.00 last 82.99)
 - open/close 1686 (time 1782494850.67 total 20.01 last 85.57)
 - open/close 2403 (time 1782494860.68 total 30.01 last 71.65)
 - open/close 3166 (time 1782494870.68 total 40.01 last 76.29)
 - open/close 3891 (time 1782494880.69 total 50.03 last 72.39)
 - open/close 4641 (time 1782494890.71 total 60.04 last 74.89)
 - open/close 5410 (time 1782494900.71 total 70.05 last 76.87)
 - open/close 6198 (time 1782494910.72 total 80.05 last 78.74)
 - open/close 6911 (time 1782494920.73 total 90.07 last 71.22)
 - open/close 7652 (time 1782494930.74 total 100.07 last 74.05)
total: 8000 open/close in 104.23 seconds: 76.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1782495104 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 734 (time 1782495213.99 total 10.02 last 73.29)
 - open/close 1464 (time 1782495223.99 total 20.02 last 72.96)
 - open/close 2303 (time 1782495234.00 total 30.03 last 83.79)
 - open/close 3151 (time 1782495244.01 total 40.04 last 84.76)
 - open/close 4177 (time 1782495254.03 total 50.06 last 102.42)
 - open/close 5133 (time 1782495264.04 total 60.07 last 95.49)
 - open/close 6060 (time 1782495274.04 total 70.07 last 92.68)
 - open/close 6826 (time 1782495284.04 total 80.07 last 76.58)
 - open/close 7591 (time 1782495294.05 total 90.08 last 76.46)
total: 8000 open/close in 96.55 seconds: 82.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1782495410 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second