Line data    Source code

       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
       3             : // found in the LICENSE file.
       4             : 
       5             : #include <memory>
       6             : 
       7             : #include "src/compiler/pipeline-statistics.h"
       8             : #include "src/compiler/zone-stats.h"
       9             : #include "src/objects/shared-function-info.h"
      10             : #include "src/objects/string.h"
      11             : #include "src/optimized-compilation-info.h"
      12             : #include "src/tracing/trace-event.h"
      13             : 
      14             : namespace v8 {
      15             : namespace internal {
      16             : namespace compiler {
      17             : 
      18             : namespace {
      19             : 
      20             : // We log detailed phase information about the pipeline
      21             : // in both the v8.turbofan and the v8.wasm categories.
      22             : const char kTraceCategory[] =                     // --
      23             :     TRACE_DISABLED_BY_DEFAULT("v8.turbofan") ","  // --
      24             :     TRACE_DISABLED_BY_DEFAULT("v8.wasm");
      25             : 
      26             : }  // namespace
      27             : 
      28           0 : void PipelineStatistics::CommonStats::Begin(
      29             :     PipelineStatistics* pipeline_stats) {
      30             :   DCHECK(!scope_);
      31           0 :   scope_.reset(new ZoneStats::StatsScope(pipeline_stats->zone_stats_));
      32             :   timer_.Start();
      33           0 :   outer_zone_initial_size_ = pipeline_stats->OuterZoneSize();
      34             :   allocated_bytes_at_start_ =
      35           0 :       outer_zone_initial_size_ -
      36           0 :       pipeline_stats->total_stats_.outer_zone_initial_size_ +
      37           0 :       pipeline_stats->zone_stats_->GetCurrentAllocatedBytes();
      38           0 : }
      39             : 
      40             : 
      41           0 : void PipelineStatistics::CommonStats::End(
      42             :     PipelineStatistics* pipeline_stats,
      43             :     CompilationStatistics::BasicStats* diff) {
      44             :   DCHECK(scope_);
      45           0 :   diff->function_name_ = pipeline_stats->function_name_;
      46           0 :   diff->delta_ = timer_.Elapsed();
      47             :   size_t outer_zone_diff =
      48           0 :       pipeline_stats->OuterZoneSize() - outer_zone_initial_size_;
      49           0 :   diff->max_allocated_bytes_ = outer_zone_diff + scope_->GetMaxAllocatedBytes();
      50             :   diff->absolute_max_allocated_bytes_ =
      51           0 :       diff->max_allocated_bytes_ + allocated_bytes_at_start_;
      52             :   diff->total_allocated_bytes_ =
      53           0 :       outer_zone_diff + scope_->GetTotalAllocatedBytes();
      54           0 :   scope_.reset();
      55             :   timer_.Stop();
      56           0 : }
      57             : 
      58           0 : PipelineStatistics::PipelineStatistics(OptimizedCompilationInfo* info,
      59             :                                        CompilationStatistics* compilation_stats,
      60             :                                        ZoneStats* zone_stats)
      61             :     : outer_zone_(info->zone()),
      62             :       zone_stats_(zone_stats),
      63             :       compilation_stats_(compilation_stats),
      64             :       source_size_(0),
      65             :       phase_kind_name_(nullptr),
      66           0 :       phase_name_(nullptr) {
      67           0 :   if (info->has_shared_info()) {
      68           0 :     source_size_ = static_cast<size_t>(info->shared_info()->SourceSize());
      69             :     std::unique_ptr<char[]> name =
      70           0 :         info->shared_info()->DebugName()->ToCString();
      71           0 :     function_name_ = name.get();
      72             :   }
      73           0 :   total_stats_.Begin(this);
      74           0 : }
      75             : 
      76             : 
      77           0 : PipelineStatistics::~PipelineStatistics() {
      78           0 :   if (InPhaseKind()) EndPhaseKind();
      79             :   CompilationStatistics::BasicStats diff;
      80           0 :   total_stats_.End(this, &diff);
      81           0 :   compilation_stats_->RecordTotalStats(source_size_, diff);
      82           0 : }
      83             : 
      84             : 
      85           0 : void PipelineStatistics::BeginPhaseKind(const char* phase_kind_name) {
      86             :   DCHECK(!InPhase());
      87           0 :   if (InPhaseKind()) EndPhaseKind();
      88           0 :   TRACE_EVENT_BEGIN0(kTraceCategory, phase_kind_name);
      89           0 :   phase_kind_name_ = phase_kind_name;
      90           0 :   phase_kind_stats_.Begin(this);
      91           0 : }
      92             : 
      93           0 : void PipelineStatistics::EndPhaseKind() {
      94             :   DCHECK(!InPhase());
      95             :   CompilationStatistics::BasicStats diff;
      96           0 :   phase_kind_stats_.End(this, &diff);
      97           0 :   compilation_stats_->RecordPhaseKindStats(phase_kind_name_, diff);
      98           0 :   TRACE_EVENT_END0(kTraceCategory, phase_kind_name_);
      99           0 : }
     100             : 
     101           0 : void PipelineStatistics::BeginPhase(const char* phase_name) {
     102           0 :   TRACE_EVENT_BEGIN0(kTraceCategory, phase_name);
     103             :   DCHECK(InPhaseKind());
     104           0 :   phase_name_ = phase_name;
     105           0 :   phase_stats_.Begin(this);
     106           0 : }
     107             : 
     108           0 : void PipelineStatistics::EndPhase() {
     109             :   DCHECK(InPhaseKind());
     110             :   CompilationStatistics::BasicStats diff;
     111           0 :   phase_stats_.End(this, &diff);
     112           0 :   compilation_stats_->RecordPhaseStats(phase_kind_name_, phase_name_, diff);
     113           0 :   TRACE_EVENT_END0(kTraceCategory, phase_name_);
     114           0 : }
     115             : 
     116             : }  // namespace compiler
     117             : }  // namespace internal
     118      122036 : }  // namespace v8