== sanity test 124b: lru resize (performance test) ================================================================================= 09:53:33 (1790690013)
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 677 (time 1790690031.27 total 10.01 last 67.64)
 - open/close 1496 (time 1790690041.30 total 20.04 last 81.68)
 - open/close 2153 (time 1790690051.32 total 30.06 last 65.53)
 - open/close 2799 (time 1790690061.33 total 40.06 last 64.58)
 - open/close 3631 (time 1790690071.33 total 50.07 last 83.14)
 - open/close 4294 (time 1790690081.36 total 60.10 last 66.12)
 - open/close 5045 (time 1790690091.37 total 70.11 last 75.04)
 - open/close 5761 (time 1790690101.37 total 80.11 last 71.58)
 - open/close 6441 (time 1790690111.38 total 90.11 last 68.00)
 - open/close 7251 (time 1790690121.38 total 100.12 last 80.98)
 - open/close 7999 (time 1790690131.38 total 110.12 last 74.80)
total: 8000 open/close in 110.12 seconds: 72.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 165 seconds
lru_size = 400
400
 - unlinked 0 (time 1790690308 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 768 (time 1790690419.54 total 10.00 last 76.76)
 - open/close 1656 (time 1790690429.55 total 20.01 last 88.73)
 - open/close 2502 (time 1790690439.55 total 30.02 last 84.56)
 - open/close 3402 (time 1790690449.56 total 40.03 last 89.92)
 - open/close 4038 (time 1790690459.57 total 50.04 last 63.54)
 - open/close 4582 (time 1790690469.57 total 60.04 last 54.37)
 - open/close 5027 (time 1790690479.58 total 70.04 last 44.49)
 - open/close 5646 (time 1790690489.58 total 80.05 last 61.87)
 - open/close 6305 (time 1790690499.60 total 90.06 last 65.80)
 - open/close 7074 (time 1790690509.61 total 100.08 last 76.79)
 - open/close 7922 (time 1790690519.62 total 110.08 last 84.75)
total: 8000 open/close in 111.02 seconds: 72.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 4006
4001
ls -la is 34% faster with lru resize enabled
 - unlinked 0 (time 1790690653 ; total 0 ; last 0)
total: 8000 unlinks in 70 seconds: 114.285713 unlinks/second