== sanity test 124b: lru resize (performance test) ================================================================================= 21:59:35 (1788746375)
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 778 (time 1788746389.44 total 10.01 last 77.70)
 - open/close 1479 (time 1788746399.44 total 20.01 last 70.09)
 - open/close 2231 (time 1788746409.46 total 30.03 last 75.08)
 - open/close 2984 (time 1788746419.49 total 40.06 last 75.09)
 - open/close 3701 (time 1788746429.49 total 50.06 last 71.68)
 - open/close 4416 (time 1788746439.49 total 60.06 last 71.49)
 - open/close 5192 (time 1788746449.50 total 70.07 last 77.54)
 - open/close 6014 (time 1788746459.50 total 80.07 last 82.17)
 - open/close 6753 (time 1788746469.51 total 90.08 last 73.85)
 - open/close 7575 (time 1788746479.51 total 100.08 last 82.17)
total: 8000 open/close in 105.29 seconds: 75.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 163 seconds
lru_size = 400
400
 - unlinked 0 (time 1788746656 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 767 (time 1788746770.17 total 10.01 last 76.66)
 - open/close 1591 (time 1788746780.18 total 20.01 last 82.38)
 - open/close 2385 (time 1788746790.18 total 30.01 last 79.37)
 - open/close 3195 (time 1788746800.18 total 40.01 last 81.00)
 - open/close 4070 (time 1788746810.18 total 50.01 last 87.49)
 - open/close 4893 (time 1788746820.19 total 60.02 last 82.24)
 - open/close 5675 (time 1788746830.20 total 70.03 last 78.12)
 - open/close 6486 (time 1788746840.20 total 80.03 last 81.08)
 - open/close 7333 (time 1788746850.21 total 90.05 last 84.60)
total: 8000 open/close in 98.35 seconds: 81.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4006
4001
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1788746953 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second