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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project 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 "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/gc-tracer.h" | 7 #include "src/gc-tracer.h" |
8 | 8 |
9 namespace v8 { | 9 namespace v8 { |
10 namespace internal { | 10 namespace internal { |
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273 PrintF("promotion_rate=%.1f%% ", heap_->promotion_rate_); | 273 PrintF("promotion_rate=%.1f%% ", heap_->promotion_rate_); |
274 PrintF("semi_space_copy_rate=%.1f%% ", heap_->semi_space_copied_rate_); | 274 PrintF("semi_space_copy_rate=%.1f%% ", heap_->semi_space_copied_rate_); |
275 | 275 |
276 if (current_.type == Event::SCAVENGER) { | 276 if (current_.type == Event::SCAVENGER) { |
277 PrintF("steps_count=%d ", current_.incremental_marking_steps); | 277 PrintF("steps_count=%d ", current_.incremental_marking_steps); |
278 PrintF("steps_took=%.1f ", current_.incremental_marking_duration); | 278 PrintF("steps_took=%.1f ", current_.incremental_marking_duration); |
279 } else { | 279 } else { |
280 PrintF("steps_count=%d ", current_.incremental_marking_steps); | 280 PrintF("steps_count=%d ", current_.incremental_marking_steps); |
281 PrintF("steps_took=%.1f ", current_.incremental_marking_duration); | 281 PrintF("steps_took=%.1f ", current_.incremental_marking_duration); |
282 PrintF("longest_step=%.1f ", current_.longest_incremental_marking_step); | 282 PrintF("longest_step=%.1f ", current_.longest_incremental_marking_step); |
283 PrintF("marking_throughput=%" V8_PTR_PREFIX "d ", | 283 PrintF("incremental_marking_throughput=%" V8_PTR_PREFIX "d ", |
284 MarkingSpeedInBytesPerMillisecond()); | 284 IncrementalMarkingSpeedInBytesPerMillisecond()); |
285 } | 285 } |
286 | 286 |
287 PrintF("\n"); | 287 PrintF("\n"); |
288 } | 288 } |
289 | 289 |
290 | 290 |
291 double GCTracer::MeanDuration(const EventBuffer& events) const { | 291 double GCTracer::MeanDuration(const EventBuffer& events) const { |
292 if (events.empty()) return 0.0; | 292 if (events.empty()) return 0.0; |
293 | 293 |
294 double mean = 0.0; | 294 double mean = 0.0; |
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348 | 348 |
349 double max_duration = 0.0; | 349 double max_duration = 0.0; |
350 EventBuffer::const_iterator iter = mark_compactor_events_.begin(); | 350 EventBuffer::const_iterator iter = mark_compactor_events_.begin(); |
351 while (iter != mark_compactor_events_.end()) | 351 while (iter != mark_compactor_events_.end()) |
352 max_duration = Max(iter->longest_incremental_marking_step, max_duration); | 352 max_duration = Max(iter->longest_incremental_marking_step, max_duration); |
353 | 353 |
354 return max_duration; | 354 return max_duration; |
355 } | 355 } |
356 | 356 |
357 | 357 |
358 intptr_t GCTracer::MarkingSpeedInBytesPerMillisecond() const { | 358 intptr_t GCTracer::IncrementalMarkingSpeedInBytesPerMillisecond() const { |
359 if (cumulative_incremental_marking_duration_ == 0.0) return 0; | 359 if (cumulative_incremental_marking_duration_ == 0.0) return 0; |
360 | 360 |
361 // We haven't completed an entire round of incremental marking, yet. | 361 // We haven't completed an entire round of incremental marking, yet. |
362 // Use data from GCTracer instead of data from event buffers. | 362 // Use data from GCTracer instead of data from event buffers. |
363 if (mark_compactor_events_.empty()) { | 363 if (mark_compactor_events_.empty()) { |
364 return static_cast<intptr_t>(cumulative_incremental_marking_bytes_ / | 364 return static_cast<intptr_t>(cumulative_incremental_marking_bytes_ / |
365 cumulative_incremental_marking_duration_); | 365 cumulative_incremental_marking_duration_); |
366 } | 366 } |
367 | 367 |
368 intptr_t bytes = 0; | 368 intptr_t bytes = 0; |
369 double durations = 0.0; | 369 double durations = 0.0; |
370 EventBuffer::const_iterator iter = mark_compactor_events_.begin(); | 370 EventBuffer::const_iterator iter = mark_compactor_events_.begin(); |
371 while (iter != mark_compactor_events_.end()) { | 371 while (iter != mark_compactor_events_.end()) { |
372 bytes += iter->incremental_marking_bytes; | 372 bytes += iter->incremental_marking_bytes; |
373 durations += iter->incremental_marking_duration; | 373 durations += iter->incremental_marking_duration; |
374 ++iter; | 374 ++iter; |
375 } | 375 } |
376 | 376 |
377 if (durations == 0.0) return 0; | 377 if (durations == 0.0) return 0; |
378 | 378 |
379 return static_cast<intptr_t>(bytes / durations); | 379 return static_cast<intptr_t>(bytes / durations); |
380 } | 380 } |
381 } | 381 } |
382 } // namespace v8::internal | 382 } // namespace v8::internal |
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