== sanity test 124b: lru resize (performance test) ================================================================================= 15:33:22 (1780342402)
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 830 (time 1780342415.48 total 10.01 last 82.95)
 - open/close 1697 (time 1780342425.48 total 20.01 last 86.66)
 - open/close 2681 (time 1780342435.49 total 30.02 last 98.36)
 - open/close 3555 (time 1780342445.49 total 40.02 last 87.35)
 - open/close 4454 (time 1780342455.50 total 50.03 last 89.85)
 - open/close 5359 (time 1780342465.51 total 60.04 last 90.40)
 - open/close 6211 (time 1780342475.52 total 70.05 last 85.15)
 - open/close 6999 (time 1780342485.53 total 80.06 last 78.71)
 - open/close 7798 (time 1780342495.53 total 90.06 last 79.86)
total: 8000 open/close in 92.73 seconds: 86.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 128 seconds
lru_size = 400
400
 - unlinked 0 (time 1780342632 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 825 (time 1780342739.23 total 10.01 last 82.43)
 - open/close 1766 (time 1780342749.23 total 20.01 last 94.08)
 - open/close 2628 (time 1780342759.24 total 30.01 last 86.17)
 - open/close 3453 (time 1780342769.25 total 40.02 last 82.44)
 - open/close 4195 (time 1780342779.25 total 50.02 last 74.20)
 - open/close 5106 (time 1780342789.25 total 60.02 last 91.08)
 - open/close 5910 (time 1780342799.26 total 70.03 last 80.33)
 - open/close 6748 (time 1780342809.26 total 80.04 last 83.74)
 - open/close 7548 (time 1780342819.27 total 90.05 last 79.92)
total: 8000 open/close in 95.65 seconds: 83.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 127 seconds
lru_size = 4052
3955
ls -la is 0% faster with lru resize enabled
 - unlinked 0 (time 1780342972 ; total 0 ; last 0)
total: 8000 unlinks in 71 seconds: 112.676056 unlinks/second