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VideoCommon: Abort texture prefetching on low RAM

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There is no nice way to correctly "detect" the "used" memory, so we just say
we're fine to use 50% of the physical memory for custom textures.

This will fix out-of-memory crashes, but we still might run into swapping issues.
This commit is contained in:
degasus 2015-05-16 15:26:11 +02:00
parent 242f7d964d
commit 562b9d4a9f
3 changed files with 40 additions and 0 deletions
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29
Source/Core/Common/MemoryUtil.cpp
View File

@ -19,6 +19,12 @@
#else
#include <stdio.h>
#include <sys/mman.h>
#include <sys/types.h>
#ifdef __APPLE__
#include <sys/sysctl.h>
#else
#include <sys/sysinfo.h>
#endif
#endif
// Valgrind doesn't support MAP_32BIT.
@ -241,3 +247,26 @@ std::string MemUsage()
return "";
#endif
}
size_t MemPhysical()
{
#ifdef _WIN32
MEMORYSTATUSEX memInfo;
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memInfo);
return memInfo.ullTotalPhys;
#elif defined(__APPLE__)
int mib[2];
size_t physical_memory;
mib[0] = CTL_HW;
mib[1] = HW_MEMSIZE;
size_t length = sizeof(size_t);
sysctl(mib, 2, &physical_memory, &length, NULL, 0);
return physical_memory;
#else
struct sysinfo memInfo;
sysinfo (&memInfo);
return (size_t)memInfo.totalram * memInfo.mem_unit;
#endif
}

1
Source/Core/Common/MemoryUtil.h
View File

@ -16,6 +16,7 @@ void ReadProtectMemory(void* ptr, size_t size);
void WriteProtectMemory(void* ptr, size_t size, bool executable = false);
void UnWriteProtectMemory(void* ptr, size_t size, bool allowExecute = false);
std::string MemUsage();
size_t MemPhysical();
void GuardMemoryMake(void* ptr, size_t size);
void GuardMemoryUnmake(void* ptr, size_t size);

10
Source/Core/VideoCommon/HiresTextures.cpp
View File

@ -16,6 +16,7 @@
#include "Common/FileSearch.h"
#include "Common/FileUtil.h"
#include "Common/Flag.h"
#include "Common/MemoryUtil.h"
#include "Common/StringUtil.h"
#include "Common/Thread.h"
#include "Common/Timer.h"
@ -167,6 +168,7 @@ void HiresTexture::Prefetch()
Common::SetCurrentThreadName("Prefetcher");
size_t size_sum = 0;
size_t max_mem = MemPhysical() / 2;
u32 starttime = Common::Timer::GetTimeMs();
for (const auto& entry : s_textureMap)
{
@ -203,6 +205,14 @@ void HiresTexture::Prefetch()
{
return;
}
if (size_sum > max_mem)
{
g_Config.bCacheHiresTextures = false;
OSD::AddMessage(StringFromFormat("Custom Textures prefetching after %.1f MB aborted, not enough RAM available", size_sum / (1024.0 * 1024.0)), 10000);
return;
}
}
u32 stoptime = Common::Timer::GetTimeMs();
OSD::AddMessage(StringFromFormat("Custom Textures loaded, %.1f MB in %.1f s", size_sum / (1024.0 * 1024.0), (stoptime - starttime) / 1000.0), 10000);