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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file contains macros to simplify histogram reporting from the disk | 5 // This file contains macros to simplify histogram reporting from the disk |
6 // cache. The main issue is that we want to have separate histograms for each | 6 // cache. The main issue is that we want to have separate histograms for each |
7 // type of cache (regular vs. media, etc), without adding the complexity of | 7 // type of cache (regular vs. media, etc), without adding the complexity of |
8 // keeping track of a potentially large number of histogram objects that have to | 8 // keeping track of a potentially large number of histogram objects that have to |
9 // survive the backend object that created them. | 9 // survive the backend object that created them. |
10 | 10 |
11 #ifndef NET_DISK_CACHE_BLOCKFILE_HISTOGRAM_MACROS_H_ | 11 #ifndef NET_DISK_CACHE_BLOCKFILE_HISTOGRAM_MACROS_H_ |
12 #define NET_DISK_CACHE_BLOCKFILE_HISTOGRAM_MACROS_H_ | 12 #define NET_DISK_CACHE_BLOCKFILE_HISTOGRAM_MACROS_H_ |
13 | 13 |
14 // ----------------------------------------------------------------------------- | 14 // ----------------------------------------------------------------------------- |
15 | 15 |
16 // These histograms follow the definition of UMA_HISTOGRAMN_XXX except that | 16 // These histograms follow the definition of UMA_HISTOGRAMN_XXX except that |
17 // whenever the name changes (the experiment group changes), the histrogram | 17 // the counter is not cached locally. |
18 // object is re-created. | |
19 // Note: These macros are only run on one thread, so the declarations of | |
20 // |counter| was made static (i.e., there will be no race for reinitialization). | |
21 | 18 |
22 #define CACHE_HISTOGRAM_CUSTOM_COUNTS(name, sample, min, max, bucket_count) \ | 19 #define CACHE_HISTOGRAM_CUSTOM_COUNTS(name, sample, min, max, bucket_count) \ |
23 do { \ | 20 do { \ |
24 static base::HistogramBase* counter(NULL); \ | 21 base::HistogramBase* counter = base::Histogram::FactoryGet( \ |
25 if (!counter || name != counter->histogram_name()) \ | |
26 counter = base::Histogram::FactoryGet( \ | |
27 name, min, max, bucket_count, \ | 22 name, min, max, bucket_count, \ |
28 base::Histogram::kUmaTargetedHistogramFlag); \ | 23 base::Histogram::kUmaTargetedHistogramFlag); \ |
29 counter->Add(sample); \ | 24 counter->Add(sample); \ |
30 } while (0) | 25 } while (0) |
31 | 26 |
32 #define CACHE_HISTOGRAM_COUNTS(name, sample) CACHE_HISTOGRAM_CUSTOM_COUNTS( \ | 27 #define CACHE_HISTOGRAM_COUNTS(name, sample) CACHE_HISTOGRAM_CUSTOM_COUNTS( \ |
33 name, sample, 1, 1000000, 50) | 28 name, sample, 1, 1000000, 50) |
34 | 29 |
35 #define CACHE_HISTOGRAM_COUNTS_10000(name, sample) \ | 30 #define CACHE_HISTOGRAM_COUNTS_10000(name, sample) \ |
36 CACHE_HISTOGRAM_CUSTOM_COUNTS(name, sample, 1, 10000, 50) | 31 CACHE_HISTOGRAM_CUSTOM_COUNTS(name, sample, 1, 10000, 50) |
37 | 32 |
38 #define CACHE_HISTOGRAM_COUNTS_50000(name, sample) \ | 33 #define CACHE_HISTOGRAM_COUNTS_50000(name, sample) \ |
39 CACHE_HISTOGRAM_CUSTOM_COUNTS(name, sample, 1, 50000000, 50) | 34 CACHE_HISTOGRAM_CUSTOM_COUNTS(name, sample, 1, 50000000, 50) |
40 | 35 |
41 #define CACHE_HISTOGRAM_CUSTOM_TIMES(name, sample, min, max, bucket_count) \ | 36 #define CACHE_HISTOGRAM_CUSTOM_TIMES(name, sample, min, max, bucket_count) \ |
42 do { \ | 37 do { \ |
43 static base::HistogramBase* counter(NULL); \ | 38 base::HistogramBase* counter = base::Histogram::FactoryTimeGet( \ |
44 if (!counter || name != counter->histogram_name()) \ | |
45 counter = base::Histogram::FactoryTimeGet( \ | |
46 name, min, max, bucket_count, \ | 39 name, min, max, bucket_count, \ |
47 base::Histogram::kUmaTargetedHistogramFlag); \ | 40 base::Histogram::kUmaTargetedHistogramFlag); \ |
48 counter->AddTime(sample); \ | 41 counter->AddTime(sample); \ |
49 } while (0) | 42 } while (0) |
50 | 43 |
51 #define CACHE_HISTOGRAM_TIMES(name, sample) CACHE_HISTOGRAM_CUSTOM_TIMES( \ | 44 #define CACHE_HISTOGRAM_TIMES(name, sample) CACHE_HISTOGRAM_CUSTOM_TIMES( \ |
52 name, sample, base::TimeDelta::FromMilliseconds(1), \ | 45 name, sample, base::TimeDelta::FromMilliseconds(1), \ |
53 base::TimeDelta::FromSeconds(10), 50) | 46 base::TimeDelta::FromSeconds(10), 50) |
54 | 47 |
55 #define CACHE_HISTOGRAM_ENUMERATION(name, sample, boundary_value) do { \ | 48 #define CACHE_HISTOGRAM_ENUMERATION(name, sample, boundary_value) do { \ |
56 static base::HistogramBase* counter(NULL); \ | 49 base::HistogramBase* counter = base::LinearHistogram::FactoryGet( \ |
57 if (!counter || name != counter->histogram_name()) \ | |
58 counter = base::LinearHistogram::FactoryGet( \ | |
59 name, 1, boundary_value, boundary_value + 1, \ | 50 name, 1, boundary_value, boundary_value + 1, \ |
60 base::Histogram::kUmaTargetedHistogramFlag); \ | 51 base::Histogram::kUmaTargetedHistogramFlag); \ |
61 counter->Add(sample); \ | 52 counter->Add(sample); \ |
62 } while (0) | 53 } while (0) |
63 | 54 |
64 #define CACHE_HISTOGRAM_PERCENTAGE(name, under_one_hundred) \ | 55 #define CACHE_HISTOGRAM_PERCENTAGE(name, under_one_hundred) \ |
65 CACHE_HISTOGRAM_ENUMERATION(name, under_one_hundred, 101) | 56 CACHE_HISTOGRAM_ENUMERATION(name, under_one_hundred, 101) |
66 | 57 |
67 // ----------------------------------------------------------------------------- | 58 // ----------------------------------------------------------------------------- |
68 | 59 |
(...skipping 22 matching lines...) Expand all Loading... |
91 // CACHE_UMA(COUNTS, "MyName", 0, 20); | 82 // CACHE_UMA(COUNTS, "MyName", 0, 20); |
92 // CACHE_UMA(COUNTS, "MyExperiment", 530, 55); | 83 // CACHE_UMA(COUNTS, "MyExperiment", 530, 55); |
93 // which roughly translates to: | 84 // which roughly translates to: |
94 // UMA_HISTOGRAM_COUNTS("DiskCache.2.MyName", 20); // "2" is the CacheType. | 85 // UMA_HISTOGRAM_COUNTS("DiskCache.2.MyName", 20); // "2" is the CacheType. |
95 // UMA_HISTOGRAM_COUNTS("DiskCache.2.MyExperiment_530", 55); | 86 // UMA_HISTOGRAM_COUNTS("DiskCache.2.MyExperiment_530", 55); |
96 // | 87 // |
97 #define CACHE_UMA(type, name, experiment, sample) {\ | 88 #define CACHE_UMA(type, name, experiment, sample) {\ |
98 const std::string my_name =\ | 89 const std::string my_name =\ |
99 CACHE_UMA_BACKEND_IMPL_OBJ->HistogramName(name, experiment);\ | 90 CACHE_UMA_BACKEND_IMPL_OBJ->HistogramName(name, experiment);\ |
100 switch (CACHE_UMA_BACKEND_IMPL_OBJ->cache_type()) {\ | 91 switch (CACHE_UMA_BACKEND_IMPL_OBJ->cache_type()) {\ |
| 92 default:\ |
| 93 NOTREACHED();\ |
| 94 /* Fall-through. */\ |
101 case net::DISK_CACHE:\ | 95 case net::DISK_CACHE:\ |
102 CACHE_HISTOGRAM_##type(my_name.data(), sample);\ | |
103 break;\ | |
104 case net::MEDIA_CACHE:\ | 96 case net::MEDIA_CACHE:\ |
105 CACHE_HISTOGRAM_##type(my_name.data(), sample);\ | |
106 break;\ | |
107 case net::APP_CACHE:\ | 97 case net::APP_CACHE:\ |
108 CACHE_HISTOGRAM_##type(my_name.data(), sample);\ | |
109 break;\ | |
110 case net::SHADER_CACHE:\ | 98 case net::SHADER_CACHE:\ |
111 CACHE_HISTOGRAM_##type(my_name.data(), sample);\ | |
112 break;\ | |
113 case net::PNACL_CACHE:\ | 99 case net::PNACL_CACHE:\ |
114 CACHE_HISTOGRAM_##type(my_name.data(), sample);\ | 100 CACHE_HISTOGRAM_##type(my_name.data(), sample);\ |
115 break;\ | 101 break;\ |
116 default:\ | |
117 NOTREACHED();\ | |
118 break;\ | |
119 }\ | 102 }\ |
120 } | 103 } |
121 | 104 |
122 #endif // NET_DISK_CACHE_BLOCKFILE_HISTOGRAM_MACROS_H_ | 105 #endif // NET_DISK_CACHE_BLOCKFILE_HISTOGRAM_MACROS_H_ |
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