== sanity test 124b: lru resize (performance test) ================================================================================= 05:20:27 (1753435227)
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 1567 (time 1753435239.99 total 10.00 last 156.64)
 - open/close 2741 (time 1753435250.00 total 20.01 last 117.30)
 - open/close 4086 (time 1753435260.01 total 30.02 last 134.35)
 - open/close 5270 (time 1753435270.01 total 40.03 last 118.38)
 - open/close 6438 (time 1753435280.02 total 50.03 last 116.72)
 - open/close 7650 (time 1753435290.02 total 60.04 last 121.16)
total: 8000 open/close in 62.37 seconds: 128.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 400
400
 - unlinked 0 (time 1753435386 ; total 0 ; last 0)
total: 8000 unlinks in 41 seconds: 195.121948 unlinks/second
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1661 (time 1753435439.96 total 10.00 last 166.02)
 - open/close 3293 (time 1753435449.96 total 20.01 last 163.15)
 - open/close 4819 (time 1753435459.96 total 30.01 last 152.58)
 - open/close 6329 (time 1753435469.96 total 40.01 last 150.94)
 - open/close 7879 (time 1753435479.97 total 50.02 last 154.89)
total: 8000 open/close in 51.05 seconds: 156.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 51 seconds
lru_size = 4006
4001
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1753435541 ; total 0 ; last 0)
total: 8000 unlinks in 37 seconds: 216.216217 unlinks/second