== sanity test 124b: lru resize (performance test) ================================================================================= 16:06:18 (1783973178)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 906 (time 1783973193.13 total 10.00 last 90.57)
 - open/close 1840 (time 1783973203.14 total 20.01 last 93.33)
 - open/close 2752 (time 1783973213.15 total 30.02 last 91.11)
 - open/close 3655 (time 1783973223.15 total 40.02 last 90.28)
 - open/close 4549 (time 1783973233.16 total 50.03 last 89.32)
 - open/close 5490 (time 1783973243.16 total 60.03 last 94.09)
 - open/close 6085 (time 1783973253.16 total 70.03 last 59.49)
 - open/close 6835 (time 1783973263.17 total 80.04 last 74.94)
 - open/close 7607 (time 1783973273.18 total 90.05 last 77.12)
total: 8000 open/close in 95.74 seconds: 83.56 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 142 seconds
lru_size = 400
400
 - unlinked 0 (time 1783973431 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 920 (time 1783973549.17 total 10.01 last 91.91)
 - open/close 1833 (time 1783973559.17 total 20.01 last 91.28)
 - open/close 2578 (time 1783973569.18 total 30.02 last 74.44)
 - open/close 3376 (time 1783973579.18 total 40.03 last 79.75)
 - open/close 4322 (time 1783973589.19 total 50.03 last 94.57)
 - open/close 5244 (time 1783973599.19 total 60.03 last 92.17)
 - open/close 6151 (time 1783973609.19 total 70.04 last 90.65)
 - open/close 6970 (time 1783973619.20 total 80.04 last 81.87)
 - open/close 7913 (time 1783973629.21 total 90.05 last 94.22)
total: 8000 open/close in 90.98 seconds: 87.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4006
4001
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1783973731 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second