== sanity test 124b: lru resize (performance test) ================================================================================= 20:40:14 (1787704814)
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 887 (time 1787704829.85 total 10.01 last 88.64)
 - open/close 1687 (time 1787704839.85 total 20.01 last 79.99)
 - open/close 2627 (time 1787704849.85 total 30.01 last 93.98)
 - open/close 3528 (time 1787704859.85 total 40.01 last 90.05)
 - open/close 4499 (time 1787704869.86 total 50.02 last 97.05)
 - open/close 5494 (time 1787704879.86 total 60.02 last 99.50)
 - open/close 6380 (time 1787704889.86 total 70.02 last 88.57)
 - open/close 7319 (time 1787704899.87 total 80.03 last 93.87)
total: 8000 open/close in 86.95 seconds: 92.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 138 seconds
lru_size = 400
400
 - unlinked 0 (time 1787705054 ; total 0 ; last 0)
total: 8000 unlinks in 85 seconds: 94.117645 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 918 (time 1787705154.90 total 10.00 last 91.80)
 - open/close 1845 (time 1787705164.91 total 20.01 last 92.61)
 - open/close 2769 (time 1787705174.91 total 30.01 last 92.36)
 - open/close 3757 (time 1787705184.92 total 40.02 last 98.74)
 - open/close 4680 (time 1787705194.93 total 50.04 last 92.16)
 - open/close 5629 (time 1787705204.93 total 60.04 last 94.89)
 - open/close 6487 (time 1787705214.93 total 70.04 last 85.80)
 - open/close 7293 (time 1787705224.95 total 80.05 last 80.50)
total: 8000 open/close in 88.66 seconds: 90.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 4006
4001
ls -la is 29% faster with lru resize enabled
 - unlinked 0 (time 1787705351 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second