== sanity test 124b: lru resize (performance test) ================================================================================= 23:39:56 (1786765196)
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 959 (time 1786765210.88 total 10.01 last 95.80)
 - open/close 1743 (time 1786765220.88 total 20.02 last 78.33)
 - open/close 2528 (time 1786765230.89 total 30.03 last 78.45)
 - open/close 3295 (time 1786765240.90 total 40.04 last 76.62)
 - open/close 3878 (time 1786765250.90 total 50.04 last 58.29)
 - open/close 4844 (time 1786765260.90 total 60.04 last 96.58)
 - open/close 5789 (time 1786765270.91 total 70.05 last 94.42)
 - open/close 6752 (time 1786765280.91 total 80.05 last 96.28)
 - open/close 7627 (time 1786765290.92 total 90.06 last 87.45)
total: 8000 open/close in 93.51 seconds: 85.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 90 seconds
lru_size = 400
400
 - unlinked 0 (time 1786765394 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 839 (time 1786765508.95 total 10.00 last 83.89)
 - open/close 1752 (time 1786765518.95 total 20.01 last 91.26)
 - open/close 2563 (time 1786765528.96 total 30.01 last 81.04)
 - open/close 3479 (time 1786765538.96 total 40.02 last 91.58)
 - open/close 4195 (time 1786765548.97 total 50.02 last 71.57)
 - open/close 5004 (time 1786765558.97 total 60.02 last 80.89)
 - open/close 5673 (time 1786765568.97 total 70.02 last 66.90)
 - open/close 6392 (time 1786765578.98 total 80.03 last 71.83)
 - open/close 7094 (time 1786765588.99 total 90.04 last 70.15)
 - open/close 7931 (time 1786765598.99 total 100.04 last 83.65)
total: 8000 open/close in 101.13 seconds: 79.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 72 seconds
lru_size = 4052
3955
ls -la is 20% faster with lru resize enabled
 - unlinked 0 (time 1786765690 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second