Motorola MVME2400 用户手册
3-12
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Functional Description
3
Assumptions
Certain assumptions have been made with regard to MVME2400
performance. Somethings which are assumed in making the
aforementioned tables include the following:
performance. Somethings which are assumed in making the
aforementioned tables include the following:
Table 3-7. PCI Originated Bandwidth Matrix
Transaction
First 2
Cache Lines
First 4
Cache Lines
First 6
Cache Lines
Continuous
Clock
Ratio
Clks
MBytes
sec
Clks
MBytes
sec
Clks
MBytes
sec
Clks/
Line
MBytes
sec
64-bit Writes
10
213
18
237
26
246
4
266
5:2
64-bit Reads
16
133
24
178
32
200
4
266
32-bit Writes
18
118
34
125
50
128
8
133
32-bit Reads
24
89
40
107
56
114
8
133
64-bit Writes
10
427
18
474
26
492
4
533
3:2
64-bit Reads
19
225
27
316
37
346
4
533
32-bit Writes
18
237
34
251
50
256
8
267
32-bit Reads
28
152
44
194
60
213
8
267
64-bit Writes
10
213
18
237
26
246
4
266
3:1
64-bit Reads
16
133
24
178
32
200
4
266
32-bit Writes
18
118
34
125
50
128
8
133
32-bit Reads
24
89
40
107
56
114
8
133
64-bit Writes
10
213
18
237
26
246
4
266
2:1
64-bit Reads
18
118
26
164
34
188
4
266
32-bit Writes
18
118
34
125
50
128
8
133
32-bit Reads
26
82
42
102
58
110
8
133
64-bit Writes
10
427
18
474
30
427
5
427
1:1
64-bit Reads
23
186
34
251
46
278
5.5
388
32-bit Writes
18
237
34
251
50
256
8
267
32-bit Reads
31
138
47
182
63
203
8
267