== sanity test 124b: lru resize (performance test) ================================================================================= 11:35:17 (1787844917)
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 646 (time 1787844933.92 total 10.00 last 64.59)
 - open/close 1375 (time 1787844943.94 total 20.02 last 72.76)
 - open/close 2087 (time 1787844953.94 total 30.02 last 71.19)
 - open/close 2861 (time 1787844963.95 total 40.03 last 77.37)
 - open/close 3594 (time 1787844973.96 total 50.04 last 73.23)
 - open/close 4287 (time 1787844983.96 total 60.04 last 69.28)
 - open/close 5058 (time 1787844993.98 total 70.06 last 76.95)
 - open/close 5843 (time 1787845003.99 total 80.07 last 78.41)
 - open/close 6659 (time 1787845013.99 total 90.07 last 81.59)
 - open/close 7415 (time 1787845023.99 total 100.07 last 75.59)
total: 8000 open/close in 107.29 seconds: 74.57 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 1787845202 ; total 0 ; last 0)
total: 8000 unlinks in 104 seconds: 76.923080 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 868 (time 1787845321.86 total 10.00 last 86.77)
 - open/close 1719 (time 1787845331.86 total 20.01 last 85.07)
 - open/close 2394 (time 1787845341.86 total 30.01 last 67.49)
 - open/close 3282 (time 1787845351.89 total 40.04 last 88.56)
 - open/close 4099 (time 1787845361.90 total 50.05 last 81.61)
 - open/close 4927 (time 1787845371.90 total 60.05 last 82.75)
 - open/close 5794 (time 1787845381.91 total 70.05 last 86.69)
 - open/close 6610 (time 1787845391.91 total 80.06 last 81.53)
 - open/close 7468 (time 1787845401.92 total 90.07 last 85.71)
total: 8000 open/close in 97.15 seconds: 82.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1787845510 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second