== sanity test 124b: lru resize (performance test) ================================================================================= 17:28:09 (1788470889)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 889 (time 1788470904.24 total 10.00 last 88.90)
 - open/close 1792 (time 1788470914.26 total 20.02 last 90.15)
 - open/close 2643 (time 1788470924.26 total 30.02 last 85.09)
 - open/close 3441 (time 1788470934.27 total 40.02 last 79.77)
 - open/close 4176 (time 1788470944.28 total 50.04 last 73.36)
 - open/close 4947 (time 1788470954.29 total 60.04 last 77.09)
 - open/close 5539 (time 1788470964.30 total 70.06 last 59.11)
 - open/close 6344 (time 1788470974.30 total 80.06 last 80.50)
 - open/close 7179 (time 1788470984.31 total 90.07 last 83.42)
total: 8000 open/close in 99.86 seconds: 80.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 141 seconds
lru_size = 400
400
 - unlinked 0 (time 1788471144 ; total 0 ; last 0)
total: 8000 unlinks in 82 seconds: 97.560974 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 850 (time 1788471242.29 total 10.00 last 84.97)
 - open/close 1796 (time 1788471252.30 total 20.01 last 94.57)
 - open/close 2784 (time 1788471262.30 total 30.01 last 98.76)
 - open/close 3547 (time 1788471272.30 total 40.01 last 76.28)
 - open/close 4507 (time 1788471282.30 total 50.02 last 95.98)
 - open/close 5469 (time 1788471292.31 total 60.02 last 96.14)
 - open/close 6453 (time 1788471302.31 total 70.03 last 98.36)
 - open/close 7402 (time 1788471312.32 total 80.03 last 94.87)
total: 8000 open/close in 86.85 seconds: 92.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4006
4001
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1788471418 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second