== sanity test 124b: lru resize (performance test) ================================================================================= 15:55:44 (1783972544)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 874 (time 1783972559.96 total 10.00 last 87.37)
 - open/close 1720 (time 1783972569.97 total 20.01 last 84.51)
 - open/close 2609 (time 1783972579.97 total 30.02 last 88.84)
 - open/close 3475 (time 1783972589.99 total 40.04 last 86.46)
 - open/close 4354 (time 1783972599.99 total 50.04 last 87.90)
 - open/close 5189 (time 1783972609.99 total 60.04 last 83.49)
 - open/close 6034 (time 1783972619.99 total 70.04 last 84.48)
 - open/close 6845 (time 1783972630.00 total 80.05 last 81.03)
 - open/close 7667 (time 1783972640.00 total 90.05 last 82.19)
total: 8000 open/close in 93.83 seconds: 85.26 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 1783972806 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 781 (time 1783972921.32 total 10.02 last 77.97)
 - open/close 1701 (time 1783972931.33 total 20.02 last 91.93)
 - open/close 2573 (time 1783972941.34 total 30.03 last 87.17)
 - open/close 3433 (time 1783972951.34 total 40.03 last 85.95)
 - open/close 4300 (time 1783972961.35 total 50.04 last 86.65)
 - open/close 5199 (time 1783972971.35 total 60.04 last 89.87)
 - open/close 6028 (time 1783972981.36 total 70.05 last 82.86)
 - open/close 6867 (time 1783972991.36 total 80.05 last 83.85)
 - open/close 7761 (time 1783973001.37 total 90.06 last 89.35)
total: 8000 open/close in 92.68 seconds: 86.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 4052
3955
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1783973099 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second