== sanity test 124b: lru resize (performance test) ================================================================================= 09:40:36 (1787406036)
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 828 (time 1787406051.09 total 10.01 last 82.75)
 - open/close 1479 (time 1787406061.12 total 20.03 last 64.93)
 - open/close 2200 (time 1787406071.14 total 30.05 last 71.97)
 - open/close 2941 (time 1787406081.15 total 40.06 last 73.98)
 - open/close 3653 (time 1787406091.16 total 50.08 last 71.13)
 - open/close 4363 (time 1787406101.16 total 60.08 last 70.99)
 - open/close 5063 (time 1787406111.17 total 70.08 last 69.97)
 - open/close 5853 (time 1787406121.19 total 80.10 last 78.86)
 - open/close 6614 (time 1787406131.19 total 90.10 last 76.06)
 - open/close 7431 (time 1787406141.19 total 100.11 last 81.67)
total: 8000 open/close in 107.23 seconds: 74.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 160 seconds
lru_size = 400
400
 - unlinked 0 (time 1787406319 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 836 (time 1787406434.40 total 10.00 last 83.59)
 - open/close 1589 (time 1787406444.41 total 20.01 last 75.26)
 - open/close 2337 (time 1787406454.42 total 30.02 last 74.70)
 - open/close 3064 (time 1787406464.43 total 40.03 last 72.65)
 - open/close 3773 (time 1787406474.43 total 50.03 last 70.89)
 - open/close 4519 (time 1787406484.44 total 60.04 last 74.52)
 - open/close 5261 (time 1787406494.45 total 70.05 last 74.15)
 - open/close 6030 (time 1787406504.45 total 80.05 last 76.87)
 - open/close 6720 (time 1787406514.46 total 90.06 last 68.92)
 - open/close 7516 (time 1787406524.47 total 100.07 last 79.55)
total: 8000 open/close in 106.20 seconds: 75.33 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787406636 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second