== sanity test 124b: lru resize (performance test) ================================================================================= 05:33:38 (1786700018)
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 877 (time 1786700032.81 total 10.01 last 87.63)
 - open/close 1689 (time 1786700042.82 total 20.02 last 81.11)
 - open/close 2520 (time 1786700052.83 total 30.03 last 83.02)
 - open/close 3289 (time 1786700062.84 total 40.03 last 76.87)
 - open/close 4082 (time 1786700072.84 total 50.04 last 79.25)
 - open/close 4824 (time 1786700082.84 total 60.04 last 74.20)
 - open/close 5615 (time 1786700092.84 total 70.04 last 79.09)
 - open/close 6459 (time 1786700102.86 total 80.06 last 84.24)
 - open/close 7288 (time 1786700112.87 total 90.07 last 82.83)
total: 8000 open/close in 99.17 seconds: 80.67 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1786700284 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 869 (time 1786700394.15 total 10.00 last 86.90)
 - open/close 1638 (time 1786700404.15 total 20.00 last 76.89)
 - open/close 2500 (time 1786700414.16 total 30.01 last 86.12)
 - open/close 3351 (time 1786700424.16 total 40.01 last 85.08)
 - open/close 4169 (time 1786700434.18 total 50.03 last 81.67)
 - open/close 4971 (time 1786700444.19 total 60.04 last 80.13)
 - open/close 5825 (time 1786700454.20 total 70.05 last 85.33)
 - open/close 6550 (time 1786700464.20 total 80.05 last 72.44)
 - open/close 7382 (time 1786700474.21 total 90.06 last 83.11)
total: 8000 open/close in 96.57 seconds: 82.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1786700576 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second