3Ware 720-0186-00 Manual page 111

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Example of histogram (histdata)
To display a histogram of IOPs grouped together based on response time
associated with the specified port, use command /cx/px show dpmstat
type=histdata.
//localhost> /c0/p3 show dpmstat type=histdata
Port Status
------------------------------
p3 OK
Bin Response Time(ms)
-----------------------------------------------
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 20
12 30
13 40
14 50
15 60
16 70
17 80
18 90
19 100
20 200
21 300
22 400
23 500
24 600
25 700
26 800
27 900
28 1000
29 2000
30 3000
31 4000
32 5000
33 6000
34 7000
35 8000
36 9000
37 10000
38 10000+
Port Object Commands
Unit
u0
IO Count
0
0
0
0
0
0
0
0
0
0
204
190
161
136
130
112
94
80
540
95
42
11
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
104