== sanity test 124b: lru resize (performance test) ================================================================================= 20:50:38 (1784767838)
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 816 (time 1784767854.30 total 10.00 last 81.57)
 - open/close 1698 (time 1784767864.31 total 20.01 last 88.14)
 - open/close 2707 (time 1784767874.31 total 30.02 last 100.84)
 - open/close 3618 (time 1784767884.32 total 40.02 last 91.08)
 - open/close 4684 (time 1784767894.32 total 50.02 last 106.56)
 - open/close 5578 (time 1784767904.33 total 60.03 last 89.33)
 - open/close 6552 (time 1784767914.33 total 70.03 last 97.39)
 - open/close 7427 (time 1784767924.34 total 80.04 last 87.41)
total: 8000 open/close in 87.07 seconds: 91.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 187 seconds
lru_size = 400
400
 - unlinked 0 (time 1784768131 ; total 0 ; last 0)
total: 8000 unlinks in 106 seconds: 75.471695 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 885 (time 1784768252.41 total 10.01 last 88.42)
 - open/close 1816 (time 1784768262.44 total 20.04 last 92.85)
 - open/close 2800 (time 1784768272.44 total 30.04 last 98.36)
 - open/close 3566 (time 1784768282.45 total 40.05 last 76.55)
 - open/close 4349 (time 1784768292.47 total 50.07 last 78.15)
 - open/close 5128 (time 1784768302.49 total 60.09 last 77.74)
 - open/close 5902 (time 1784768312.49 total 70.09 last 77.40)
 - open/close 6723 (time 1784768322.50 total 80.10 last 81.99)
 - open/close 7519 (time 1784768332.51 total 90.10 last 79.56)
total: 8000 open/close in 96.61 seconds: 82.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4052
3955
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1784768448 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second