== sanity test 124b: lru resize (performance test) ================================================================================= 23:06:29 (1786417589)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 881 (time 1786417604.74 total 10.01 last 88.00)
 - open/close 1723 (time 1786417614.75 total 20.02 last 84.15)
 - open/close 2431 (time 1786417624.76 total 30.03 last 70.71)
 - open/close 3286 (time 1786417634.77 total 40.04 last 85.42)
 - open/close 4101 (time 1786417644.77 total 50.04 last 81.50)
 - open/close 4971 (time 1786417654.78 total 60.05 last 86.92)
 - open/close 5853 (time 1786417664.79 total 70.06 last 88.16)
 - open/close 6665 (time 1786417674.80 total 80.06 last 81.14)
 - open/close 7474 (time 1786417684.80 total 90.06 last 80.89)
total: 8000 open/close in 96.34 seconds: 83.04 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 157 seconds
lru_size = 400
400
 - unlinked 0 (time 1786417859 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 814 (time 1786417964.40 total 10.01 last 81.31)
 - open/close 1629 (time 1786417974.41 total 20.02 last 81.42)
 - open/close 2575 (time 1786417984.42 total 30.03 last 94.54)
 - open/close 3370 (time 1786417994.43 total 40.04 last 79.41)
 - open/close 4242 (time 1786418004.43 total 50.04 last 87.18)
 - open/close 5098 (time 1786418014.43 total 60.04 last 85.58)
 - open/close 5873 (time 1786418024.45 total 70.06 last 77.39)
 - open/close 6817 (time 1786418034.45 total 80.06 last 94.39)
 - open/close 7677 (time 1786418044.45 total 90.06 last 85.99)
total: 8000 open/close in 93.12 seconds: 85.91 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1786418150 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second