== sanity test 124b: lru resize (performance test) ================================================================================= 11:04:30 (1786719870)
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 825 (time 1786719885.32 total 10.02 last 82.33)
 - open/close 1683 (time 1786719895.32 total 20.02 last 85.79)
 - open/close 2526 (time 1786719905.32 total 30.03 last 84.27)
 - open/close 3363 (time 1786719915.33 total 40.03 last 83.65)
 - open/close 4197 (time 1786719925.33 total 50.03 last 83.40)
 - open/close 4934 (time 1786719935.33 total 60.03 last 73.68)
 - open/close 5715 (time 1786719945.33 total 70.04 last 78.09)
 - open/close 6540 (time 1786719955.34 total 80.05 last 82.42)
 - open/close 7391 (time 1786719965.35 total 90.05 last 85.06)
total: 8000 open/close in 97.47 seconds: 82.07 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 158 seconds
lru_size = 400
400
 - unlinked 0 (time 1786720138 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 861 (time 1786720252.54 total 10.01 last 86.00)
 - open/close 1756 (time 1786720262.55 total 20.02 last 89.40)
 - open/close 2556 (time 1786720272.56 total 30.03 last 79.96)
 - open/close 3429 (time 1786720282.57 total 40.03 last 87.23)
 - open/close 4289 (time 1786720292.58 total 50.05 last 85.84)
 - open/close 5163 (time 1786720302.60 total 60.07 last 87.29)
 - open/close 6005 (time 1786720312.62 total 70.08 last 84.04)
 - open/close 6883 (time 1786720322.62 total 80.09 last 87.74)
 - open/close 7712 (time 1786720332.63 total 90.10 last 82.81)
total: 8000 open/close in 93.68 seconds: 85.40 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 1786720439 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second