== sanity test 124b: lru resize (performance test) ================================================================================= 04:05:34 (1789027534)
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 837 (time 1789027549.03 total 10.00 last 83.66)
 - open/close 1630 (time 1789027559.04 total 20.02 last 79.22)
 - open/close 2467 (time 1789027569.05 total 30.03 last 83.60)
 - open/close 3236 (time 1789027579.06 total 40.03 last 76.88)
 - open/close 4016 (time 1789027589.06 total 50.03 last 77.97)
 - open/close 4839 (time 1789027599.07 total 60.04 last 82.25)
 - open/close 5666 (time 1789027609.07 total 70.04 last 82.67)
 - open/close 6417 (time 1789027619.08 total 80.05 last 75.05)
 - open/close 7195 (time 1789027629.08 total 90.05 last 77.78)
 - open/close 7932 (time 1789027639.08 total 100.05 last 73.69)
total: 8000 open/close in 101.20 seconds: 79.05 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 144 seconds
lru_size = 400
400
 - unlinked 0 (time 1789027794 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 851 (time 1789027907.43 total 10.01 last 84.99)
 - open/close 1712 (time 1789027917.44 total 20.02 last 86.02)
 - open/close 2570 (time 1789027927.44 total 30.03 last 85.75)
 - open/close 3413 (time 1789027937.45 total 40.03 last 84.28)
 - open/close 4291 (time 1789027947.46 total 50.04 last 87.69)
 - open/close 5115 (time 1789027957.46 total 60.05 last 82.37)
 - open/close 5851 (time 1789027967.46 total 70.05 last 73.59)
 - open/close 6598 (time 1789027977.48 total 80.06 last 74.61)
 - open/close 7378 (time 1789027987.48 total 90.06 last 77.97)
total: 8000 open/close in 97.67 seconds: 81.91 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 46% faster with lru resize enabled
 - unlinked 0 (time 1789028088 ; total 0 ; last 0)
total: 8000 unlinks in 70 seconds: 114.285713 unlinks/second