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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 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 #include "base/debug/trace_event.h" | 5 #include "base/debug/trace_event.h" |
| 6 #include "base/json/json_writer.h" | 6 #include "base/json/json_writer.h" |
| 7 #include "base/memory/scoped_ptr.h" | 7 #include "base/memory/scoped_ptr.h" |
| 8 #include "base/strings/stringprintf.h" | 8 #include "base/strings/stringprintf.h" |
| 9 #include "ui/events/latency_info.h" | 9 #include "ui/events/latency_info.h" |
| 10 | 10 |
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| 194 it->second.event_time, | 194 it->second.event_time, |
| 195 it->second.event_count); | 195 it->second.event_count); |
| 196 } | 196 } |
| 197 } | 197 } |
| 198 } | 198 } |
| 199 | 199 |
| 200 void LatencyInfo::AddLatencyNumber(LatencyComponentType component, | 200 void LatencyInfo::AddLatencyNumber(LatencyComponentType component, |
| 201 int64 id, | 201 int64 id, |
| 202 int64 component_sequence_number) { | 202 int64 component_sequence_number) { |
| 203 AddLatencyNumberWithTimestamp(component, id, component_sequence_number, | 203 AddLatencyNumberWithTimestamp(component, id, component_sequence_number, |
| 204 base::TimeTicks::HighResNow(), 1); | 204 base::TimeTicks::Now(), 1); |
| 205 } | 205 } |
| 206 | 206 |
| 207 void LatencyInfo::AddLatencyNumberWithTimestamp(LatencyComponentType component, | 207 void LatencyInfo::AddLatencyNumberWithTimestamp(LatencyComponentType component, |
| 208 int64 id, | 208 int64 id, |
| 209 int64 component_sequence_number, | 209 int64 component_sequence_number, |
| 210 base::TimeTicks time, | 210 base::TimeTicks time, |
| 211 uint32 event_count) { | 211 uint32 event_count) { |
| 212 | 212 |
| 213 static const unsigned char* benchmark_enabled = | 213 static const unsigned char* benchmark_enabled = |
| 214 TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED("benchmark"); | 214 TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED("benchmark"); |
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| 231 &component) || | 231 &component) || |
| 232 FindLatency(INPUT_EVENT_LATENCY_UI_COMPONENT, | 232 FindLatency(INPUT_EVENT_LATENCY_UI_COMPONENT, |
| 233 0, | 233 0, |
| 234 &component)) { | 234 &component)) { |
| 235 // The timestamp stored in ORIGINAL/UI_COMPONENT is using clock | 235 // The timestamp stored in ORIGINAL/UI_COMPONENT is using clock |
| 236 // CLOCK_MONOTONIC while TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP0 | 236 // CLOCK_MONOTONIC while TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP0 |
| 237 // expects timestamp using CLOCK_MONOTONIC or CLOCK_SYSTEM_TRACE (on | 237 // expects timestamp using CLOCK_MONOTONIC or CLOCK_SYSTEM_TRACE (on |
| 238 // CrOS). So we need to adjust the diff between in CLOCK_MONOTONIC and | 238 // CrOS). So we need to adjust the diff between in CLOCK_MONOTONIC and |
| 239 // CLOCK_SYSTEM_TRACE. Note that the diff is drifting overtime so we | 239 // CLOCK_SYSTEM_TRACE. Note that the diff is drifting overtime so we |
| 240 // can't use a static value. | 240 // can't use a static value. |
| 241 int64 diff = base::TimeTicks::HighResNow().ToInternalValue() - | 241 int64 diff = base::TimeTicks::Now().ToInternalValue() - |
| 242 base::TimeTicks::NowFromSystemTraceTime().ToInternalValue(); | 242 base::TimeTicks::NowFromSystemTraceTime().ToInternalValue(); |
| 243 ts = component.event_time.ToInternalValue() - diff; | 243 ts = component.event_time.ToInternalValue() - diff; |
| 244 } else { | 244 } else { |
| 245 ts = base::TimeTicks::NowFromSystemTraceTime().ToInternalValue(); | 245 ts = base::TimeTicks::NowFromSystemTraceTime().ToInternalValue(); |
| 246 } | 246 } |
| 247 TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP0( | 247 TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP0( |
| 248 "benchmark", | 248 "benchmark", |
| 249 "InputLatency", | 249 "InputLatency", |
| 250 TRACE_ID_DONT_MANGLE(trace_id), | 250 TRACE_ID_DONT_MANGLE(trace_id), |
| 251 ts); | 251 ts); |
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| 321 } | 321 } |
| 322 | 322 |
| 323 void LatencyInfo::TraceEventType(const char* event_type) { | 323 void LatencyInfo::TraceEventType(const char* event_type) { |
| 324 TRACE_EVENT_ASYNC_STEP_INTO0("benchmark", | 324 TRACE_EVENT_ASYNC_STEP_INTO0("benchmark", |
| 325 "InputLatency", | 325 "InputLatency", |
| 326 TRACE_ID_DONT_MANGLE(trace_id), | 326 TRACE_ID_DONT_MANGLE(trace_id), |
| 327 event_type); | 327 event_type); |
| 328 } | 328 } |
| 329 | 329 |
| 330 } // namespace ui | 330 } // namespace ui |
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