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#3364 Cap intel adapters' vram to 25% of ram

master
Andrey Kleshchev 2025-01-09 18:06:11 +02:00 committed by Andrey Kleshchev
parent 203ef2f8d8
commit eb48eead2b
1 changed files with 18 additions and 0 deletions
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18
indra/llwindow/llwindowwin32.cpp
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@ -44,6 +44,7 @@
#include "llstring.h"
#include "lldir.h"
#include "llsdutil.h"
#include "llsys.h"
#include "llglslshader.h"
#include "llthreadsafequeue.h"
#include "stringize.h"
@ -4681,6 +4682,23 @@ void LLWindowWin32::LLWindowWin32Thread::checkDXMem()
// Alternatively use GetDesc from below to get adapter's memory
UINT64 budget_mb = info.Budget / (1024 * 1024);
if (gGLManager.mIsIntel)
{
U32Megabytes phys_mb = gSysMemory.getPhysicalMemoryKB();
LL_WARNS() << "Physical memory: " << phys_mb << " MB" << LL_ENDL;
if (phys_mb > 0)
{
// Intel uses 'shared' vram, cap it to 25% of total memory
// Todo: consider caping all adapters at least to 50% ram
budget_mb = llmin(budget_mb, (UINT64)(phys_mb * 0.25));
}
else
{
// if no data available, cap to 2Gb
budget_mb = llmin(budget_mb, (UINT64)2048);
}
}
if (gGLManager.mVRAM < (S32)budget_mb)
{
gGLManager.mVRAM = (S32)budget_mb;