Hello All
Using R3 pool with images running ubuntu vms.
Having three nodes…
I have default settings for ms_asyc threads to 3 and rbd_op_thread to 1
How to improve below latency…mainly write....
# sed 's/^.\{60\}//' a
WR RD WR_BYTES RD_BYTES WR_LAT RD_LAT
50/s 0/s 275 KiB/s 0 B/s 17.36 ms 0.00 ns
45/s 4/s 230 KiB/s 56 KiB/s 66.02 ms 6.90 ms
25/s 0/s 146 KiB/s 0 B/s 68.52 ms 0.00 ns
24/s 0/s 548 KiB/s 0 B/s 22.49 ms 0.00 ns
22/s 0/s 114 KiB/s 0 B/s 20.85 ms 0.00 ns
18/s 0/s 204 KiB/s 0 B/s 48.31 ms 0.00 ns
17/s 0/s 182 KiB/s 0 B/s 10.00 ms 0.00 ns
15/s 4/s 25 MiB/s 17 KiB/s 254.61 ms 17.42 ms
12/s 0/s 268 KiB/s 0 B/s 29.67 ms 0.00 ns
12/s 2/s 13 MiB/s 8.8 KiB/s 147.05 ms 2.30 ms
11/s 0/s 77 KiB/s 0 B/s 50.42 ms 0.00 ns
11/s 0/s 74 KiB/s 0 B/s 35.54 ms 0.00 ns
10/s 0/s 101 KiB/s 0 B/s 80.83 ms 0.00 ns
9/s 0/s 65 KiB/s 0 B/s 24.81 ms 0.00 ns
7/s 0/s 37 KiB/s 0 B/s 59.11 ms 0.00 ns
7/s 0/s 33 KiB/s 0 B/s 43.95 ms 0.00 ns
6/s 8/s 31 KiB/s 34 KiB/s 131.78 ms 127.46 us
4/s 0/s 18 KiB/s 0 B/s 56.90 ms 0.00 ns
4/s 0/s 23 KiB/s 0 B/s 74.13 ms 0.00 ns
3/s 0/s 18 KiB/s 0 B/s 38.25 ms 0.00 ns
2/s 0/s 10 KiB/s 0 B/s 26.28 ms 0.00 ns
2/s 0/s 11 KiB/s 0 B/s 49.80 ms 0.00 ns
1/s 0/s 90 KiB/s 0 B/s 43.02 ms 0.00 ns
1/s 0/s 8.8 KiB/s 0 B/s 24.99 ms 0.00 ns
1/s 0/s 10 KiB/s 0 B/s 102.38 ms 0.00 ns
1/s 0/s 15 KiB/s 0 B/s 57.23 ms 0.00 ns
0/s 0/s 7.2 KiB/s 0 B/s 149.90 ms 0.00 ns
0/s 0/s 4 KiB/s 0 B/s 1.58 ms 0.00 ns
0/s 0/s 3.2 KiB/s 0 B/s 1.02 ms 0.00 ns
0/s 0/s 819 B/s 0 B/s 40.45 ms 0.00 ns
Regards
Dev
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