== sanity test 124b: lru resize (performance test) ================================================================================= 18:08:29 (1781215709)
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 1168 (time 1781215722.81 total 10.00 last 116.80)
 - open/close 2289 (time 1781215732.82 total 20.01 last 112.04)
 - open/close 3596 (time 1781215742.83 total 30.01 last 130.59)
 - open/close 4755 (time 1781215752.83 total 40.02 last 115.88)
 - open/close 5970 (time 1781215762.83 total 50.02 last 121.48)
 - open/close 7256 (time 1781215772.83 total 60.02 last 128.59)
total: 8000 open/close in 65.62 seconds: 121.91 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 103 seconds
lru_size = 400
400
 - unlinked 0 (time 1781215886 ; total 0 ; last 0)
total: 8000 unlinks in 35 seconds: 228.571426 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1242 (time 1781215933.57 total 10.00 last 124.19)
 - open/close 2624 (time 1781215943.58 total 20.01 last 138.09)
 - open/close 4079 (time 1781215953.58 total 30.01 last 145.47)
 - open/close 5419 (time 1781215963.58 total 40.01 last 133.99)
 - open/close 6894 (time 1781215973.59 total 50.01 last 147.48)
total: 8000 open/close in 56.35 seconds: 141.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 48 seconds
lru_size = 4052
3955
ls -la is 53% faster with lru resize enabled
 - unlinked 0 (time 1781216038 ; total 0 ; last 0)
total: 8000 unlinks in 32 seconds: 250.000000 unlinks/second