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Add stats on output size

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This commit is contained in:
Wilson Snyder 2024-03-24 10:50:53 -04:00
parent 71d76c993c
commit 34e4cffb62
4 changed files with 31 additions and 8 deletions
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1
src/V3EmitCBase.cpp
View File

@ -67,6 +67,7 @@ AstCFile* EmitCBaseVisitorConst::createCFile(const string& filename, bool slow,
AstCFile* const cfilep = new AstCFile{v3Global.rootp()->fileline(), filename};
cfilep->slow(slow);
cfilep->source(source);
if (source) V3Stats::addStatSum(V3Stats::STAT_CPP_FILES, 1);
return cfilep;
}

19
src/V3File.h
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@ -21,6 +21,7 @@
#include "verilatedos.h"
#include "V3Error.h"
#include "V3Stats.h"
#include <array>
#include <fstream>
@ -207,6 +208,7 @@ class V3OutFile VL_NOT_FINAL : public V3OutFormatter {
// MEMBERS
FILE* m_fp = nullptr;
std::size_t m_usedBytes = 0; // Number of bytes stored in m_bufferp
std::size_t m_writtenBytes = 0; // Number of bytes written to output
std::unique_ptr<std::array<char, WRITE_BUFFER_SIZE_BYTES>> m_bufferp; // Write buffer
public:
@ -215,16 +217,23 @@ public:
V3OutFile& operator=(const V3OutFile&) = delete;
V3OutFile(V3OutFile&&) = delete;
V3OutFile& operator=(V3OutFile&&) = delete;
~V3OutFile() override;
void putsForceIncs();
void statRecordWritten() {
writeBlock();
V3Stats::addStatSum(V3Stats::STAT_CPP_CHARS, m_writtenBytes);
}
private:
void writeBlock() {
if (VL_LIKELY(m_usedBytes > 0)) fwrite(m_bufferp->data(), m_usedBytes, 1, m_fp);
m_usedBytes = 0;
if (VL_LIKELY(m_usedBytes > 0)) {
fwrite(m_bufferp->data(), m_usedBytes, 1, m_fp);
m_writtenBytes += m_usedBytes;
m_usedBytes = 0;
}
}
// CALLBACKS
void putcOutput(char chr) override {
m_bufferp->at(m_usedBytes++) = chr;
@ -257,7 +266,7 @@ public:
: V3OutFile{filename, lang} {
resetPrivate();
}
~V3OutCFile() override = default;
~V3OutCFile() override { statRecordWritten(); }
virtual void putsHeader() { puts("// Verilated -*- C++ -*-\n"); }
virtual void putsIntTopInclude() { putsForceIncs(); }
virtual void putsGuard();

10
src/V3Stats.cpp
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@ -23,6 +23,11 @@
VL_DEFINE_DEBUG_FUNCTIONS;
//######################################################################
// Statics
V3Mutex V3Stats::s_mutex;
//######################################################################
// Stats class functions
@ -165,6 +170,11 @@ public:
//######################################################################
// Top Stats class
void V3Stats::addStatSum(const string& name, double count) VL_MT_SAFE_EXCLUDES(s_mutex) {
V3LockGuard lock{s_mutex};
addStat(V3Statistic{"*", name, count, 0, true});
}
void V3Stats::statsStageAll(AstNetlist* nodep, const std::string& stage, bool fastOnly) {
StatsVisitor{nodep, stage, fastOnly};
}

9
src/V3Stats.h
View File

@ -103,8 +103,12 @@ public:
//============================================================================
class V3Stats final {
static V3Mutex s_mutex; // Protects accesses
public:
// Symbolic names for some statistics that are later read by summaryReport()
static constexpr const char* STAT_CPP_CHARS = "Output, C++ bytes written";
static constexpr const char* STAT_CPP_FILES = "Output, C++ files written";
static constexpr const char* STAT_MODEL_SIZE = "Size prediction, Model total (bytes)";
static constexpr const char* STAT_SOURCE_CHARS = "Input, Verilog bytes read";
static constexpr const char* STAT_SOURCE_MODULES = "Input, Verilog modules read";
@ -117,9 +121,8 @@ public:
static void addStat(const string& name, double value, unsigned precision = 0) {
addStat(V3Statistic{"*", name, value, precision});
}
static void addStatSum(const string& name, double count) {
addStat(V3Statistic{"*", name, count, 0, true});
}
// Add summary statistic - Threadsafe _unlike most other functions here_
static void addStatSum(const string& name, double count) VL_MT_SAFE_EXCLUDES(s_mutex);
static void addStatPerf(const string& name, double value) {
addStat(V3Statistic{"*", name, value, 6, true, true});
}