== sanity test 124b: lru resize (performance test) ================================================================================= 19:04:08 (1787612648)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 906 (time 1787612662.88 total 10.01 last 90.55)
 - open/close 1669 (time 1787612672.88 total 20.01 last 76.27)
 - open/close 2451 (time 1787612682.88 total 30.01 last 78.17)
 - open/close 3233 (time 1787612692.90 total 40.03 last 78.04)
 - open/close 3968 (time 1787612702.94 total 50.07 last 73.27)
 - open/close 4635 (time 1787612712.94 total 60.07 last 66.67)
 - open/close 5376 (time 1787612722.97 total 70.10 last 73.85)
 - open/close 6291 (time 1787612732.98 total 80.11 last 91.48)
 - open/close 7119 (time 1787612742.98 total 90.11 last 82.79)
 - open/close 7881 (time 1787612752.99 total 100.12 last 76.11)
total: 8000 open/close in 101.89 seconds: 78.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 143 seconds
lru_size = 400
400
 - unlinked 0 (time 1787612909 ; total 0 ; last 0)
total: 8000 unlinks in 106 seconds: 75.471695 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 896 (time 1787613030.42 total 10.00 last 89.59)
 - open/close 1826 (time 1787613040.43 total 20.01 last 92.93)
 - open/close 2756 (time 1787613050.43 total 30.01 last 92.98)
 - open/close 3543 (time 1787613060.43 total 40.01 last 78.68)
 - open/close 4439 (time 1787613070.43 total 50.01 last 89.59)
 - open/close 5325 (time 1787613080.44 total 60.03 last 88.50)
 - open/close 6209 (time 1787613090.45 total 70.03 last 88.39)
 - open/close 7062 (time 1787613100.45 total 80.03 last 85.30)
 - open/close 7916 (time 1787613110.45 total 90.04 last 85.32)
total: 8000 open/close in 91.11 seconds: 87.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1787613212 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second