== sanity test 124b: lru resize (performance test) ================================================================================= 07:50:20 (1787831420)
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 727 (time 1787831435.25 total 10.00 last 72.67)
 - open/close 1752 (time 1787831445.25 total 20.01 last 102.46)
 - open/close 2621 (time 1787831455.26 total 30.01 last 86.85)
 - open/close 3465 (time 1787831465.26 total 40.02 last 84.37)
 - open/close 4286 (time 1787831475.26 total 50.02 last 82.10)
 - open/close 5227 (time 1787831485.27 total 60.03 last 94.03)
 - open/close 6139 (time 1787831495.29 total 70.04 last 91.06)
 - open/close 6944 (time 1787831505.29 total 80.04 last 80.49)
 - open/close 7773 (time 1787831515.30 total 90.05 last 82.84)
total: 8000 open/close in 93.02 seconds: 86.00 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1787831665 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 805 (time 1787831777.27 total 10.00 last 80.50)
 - open/close 1580 (time 1787831787.28 total 20.01 last 77.43)
 - open/close 2474 (time 1787831797.29 total 30.02 last 89.34)
 - open/close 3266 (time 1787831807.29 total 40.02 last 79.17)
 - open/close 4289 (time 1787831817.29 total 50.02 last 102.27)
 - open/close 5140 (time 1787831827.30 total 60.03 last 85.05)
 - open/close 6022 (time 1787831837.31 total 70.04 last 88.13)
 - open/close 6871 (time 1787831847.31 total 80.04 last 84.84)
 - open/close 7786 (time 1787831857.32 total 90.05 last 91.40)
total: 8000 open/close in 92.45 seconds: 86.53 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1787831960 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second