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vulkan: Relax VRAM allocation limits for better stability

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Adjusts VRAM allocation strategy to be more conservative while maintaining
performance:

- Increases reserve memory from 1/8th to 1/4th (max 2GB) for discrete GPUs
- Increases base memory limit from 6GB to 8GB
- Doubles resolution scaling memory from 1GB to 2GB per scale factor
- Reduces system memory reservation from 8GB to 4GB for integrated GPUs
- Increases maximum memory limit from 4GB to 6GB for integrated GPUs

These changes help prevent memory leaks while still providing adequate
VRAM for optimal performance.
This commit is contained in:
Zephyron 2025-01-27 15:34:00 +10:00
parent 33f8cd0c7e
commit c36151d6e3
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GPG key ID: 2177ADED8AC966AF
1 changed files with 7 additions and 5 deletions
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12
src/video_core/vulkan_common/vulkan_device.cpp
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@ -1333,22 +1333,24 @@ void Device::CollectPhysicalMemoryInfo() {
device_access_memory += mem_properties.memoryHeaps[element].size;
}
if (!is_integrated) {
const u64 reserve_memory = std::min<u64>(device_access_memory / 8, 1_GiB);
// Increase reserve memory to be more conservative
const u64 reserve_memory = std::min<u64>(device_access_memory / 4, 2_GiB);
device_access_memory -= reserve_memory;
if (Settings::values.vram_usage_mode.GetValue() != Settings::VramUsageMode::Aggressive) {
// Account for resolution scaling in memory limits
const size_t normal_memory = 6_GiB;
const size_t scaler_memory = 1_GiB * Settings::values.resolution_info.ScaleUp(1);
// Increase base memory limit and scale factor for resolution scaling
const size_t normal_memory = 8_GiB;
const size_t scaler_memory = 2_GiB * Settings::values.resolution_info.ScaleUp(1);
device_access_memory =
std::min<u64>(device_access_memory, normal_memory + scaler_memory);
}
return;
}
// For integrated GPUs, be more conservative with memory limits
const s64 available_memory = static_cast<s64>(device_access_memory - device_initial_usage);
device_access_memory = static_cast<u64>(std::max<s64>(
std::min<s64>(available_memory - 8_GiB, 4_GiB), std::min<s64>(local_memory, 4_GiB)));
std::min<s64>(available_memory - 4_GiB, 6_GiB), std::min<s64>(local_memory, 6_GiB)));
}
void Device::CollectToolingInfo() {