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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Use the <code>system.cpu</code> API to query CPU metadata. | |
6 namespace system.cpu { | |
7 | |
8 // Counters for assessing CPU utilization. Each field is monotonically | |
9 // increasing while the processor is powered on. Values are in milliseconds. | |
10 dictionary CpuTime { | |
11 // The cumulative time used by userspace programs on this processor. | |
12 double user; | |
13 | |
14 // The cumulative time used by kernel programs on this processor. | |
15 double kernel; | |
16 | |
17 // The cumulative time spent idle by this processor. | |
18 double idle; | |
19 | |
20 // The total cumulative time for this processor. This value is equal to | |
21 // user + kernel + idle. | |
22 double total; | |
23 }; | |
24 | |
25 dictionary ProcessorInfo { | |
26 // Cumulative usage info for this logical processor. | |
27 CpuTime usage; | |
28 }; | |
29 | |
30 dictionary CpuInfo { | |
31 // The number of logical processors. | |
32 long numOfProcessors; | |
33 | |
34 // The architecture name of the processors. | |
35 DOMString archName; | |
36 | |
37 // The model name of the processors. | |
38 DOMString modelName; | |
39 | |
40 // A set of feature codes indicating some of the processor's capabilities. | |
41 // The currently supported codes are "mmx", "sse", "sse2", "sse3", "ssse3", | |
42 // "sse4_1", "sse4_2", and "avx". | |
43 DOMString[] features; | |
44 | |
45 // Information about each logical processor. | |
46 ProcessorInfo[] processors; | |
47 }; | |
48 | |
49 callback CpuInfoCallback = void (CpuInfo info); | |
50 | |
51 interface Functions { | |
52 // Queries basic CPU information of the system. | |
53 static void getInfo(CpuInfoCallback callback); | |
54 }; | |
55 }; | |
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