== sanity test 124b: lru resize (performance test) ================================================================================= 13:10:03 (1788369003)
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 939 (time 1788369016.38 total 10.00 last 93.86)
 - open/close 1867 (time 1788369026.39 total 20.01 last 92.72)
 - open/close 2696 (time 1788369036.40 total 30.02 last 82.83)
 - open/close 3611 (time 1788369046.41 total 40.03 last 91.39)
 - open/close 4528 (time 1788369056.41 total 50.03 last 91.69)
 - open/close 5499 (time 1788369066.42 total 60.04 last 97.07)
 - open/close 6456 (time 1788369076.43 total 70.05 last 95.62)
 - open/close 7372 (time 1788369086.43 total 80.05 last 91.59)
total: 8000 open/close in 86.43 seconds: 92.56 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 118 seconds
lru_size = 400
400
 - unlinked 0 (time 1788369216 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1205 (time 1788369292.97 total 10.01 last 120.38)
 - open/close 2429 (time 1788369302.98 total 20.02 last 122.29)
 - open/close 3757 (time 1788369312.99 total 30.02 last 132.74)
 - open/close 5122 (time 1788369322.99 total 40.03 last 136.42)
 - open/close 6540 (time 1788369332.99 total 50.03 last 141.76)
 - open/close 7846 (time 1788369343.00 total 60.04 last 130.52)
total: 8000 open/close in 61.03 seconds: 131.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 51 seconds
lru_size = 4006
4001
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1788369405 ; total 0 ; last 0)
total: 8000 unlinks in 34 seconds: 235.294113 unlinks/second