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Memory pages bitmap calculation.

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This commit is contained in:
Bartosz Taudul 2018-04-02 18:14:59 +02:00
parent bf249de266
commit 78cd86dd69
2 changed files with 78 additions and 0 deletions
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76
server/TracyView.cpp
View File

@ -3940,6 +3940,82 @@ void View::DrawMemory()
ImGui::End();
}
enum { ChunkBits = 10 };
enum { ChunkSize = 1 << ChunkBits };
enum { PageBits = 10 };
enum { PageChunkBits = ChunkBits + PageBits };
enum { PageSize = 1 << PageChunkBits };
enum { PageMask = PageSize - 1 };
static tracy_force_inline void PreparePage( Vector<int8_t>& page )
{
if( page.empty() )
{
page.reserve_and_use( ChunkSize );
memset( page.data(), 0, ChunkSize );
}
}
Vector<Vector<int8_t>> View::GetMemoryPages() const
{
Vector<Vector<int8_t>> ret;
const auto& mem = m_worker.GetMemData();
const auto span = mem.high - mem.low;
const auto pages = ( span / PageSize ) + 1;
ret.reserve_and_use( pages );
memset( ret.data(), 0, pages * sizeof( Vector<int8_t> ) );
for( auto& alloc : mem.data )
{
const auto a0 = alloc->ptr - mem.low;
const auto a1 = a0 + alloc->size;
const auto p0 = a0 >> PageChunkBits;
const auto p1 = a1 >> PageChunkBits;
int8_t val = alloc->timeFree < 0 ? 1 : -1;
if( p0 == p1 )
{
auto& page = ret[p0];
PreparePage( page );
const auto b0 = a0 & PageMask;
const auto b1 = a1 & PageMask;
const auto c0 = b0 >> ChunkBits;
const auto c1 = ( b1 >> ChunkBits ) + 1;
memset( page.data() + c0, val, c1 - c0 );
}
else
{
{
auto& page = ret[p0];
PreparePage( page );
const auto b0 = a0 & PageMask;
const auto c0 = b0 >> ChunkBits;
memset( page.data() + c0, val, ChunkSize - c0 );
}
for( uint64_t i=p0+1; i<p1; i++ )
{
auto& page = ret[i];
if( page.empty() ) page.reserve_and_use( ChunkSize );
memset( page.data(), val, ChunkSize );
}
{
auto& page = ret[p1];
PreparePage( page );
const auto b1 = a1 & PageMask;
const auto c1 = ( b1 >> ChunkBits ) + 1;
memset( page.data(), val, c1 );
}
}
}
return ret;
}
uint32_t View::GetZoneColor( const ZoneEvent& ev )
{
const auto& srcloc = m_worker.GetSourceLocation( ev.srcloc );

2
server/TracyView.hpp
View File

@ -109,6 +109,8 @@ private:
void FindZones();
#endif
Vector<Vector<int8_t>> GetMemoryPages() const;
flat_hash_map<const void*, bool, nohash<const void*>> m_visible;
flat_hash_map<const void*, bool, nohash<const void*>> m_showFull;