Class SystemInfo

Namespace

Sdl3Sharp.Utilities

Assembly

Sdl3Sharp.dll

Provides properties to check the current system's configuration

public static class SystemInfo

Inheritance

object

SystemInfo

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

These properties are largely concerned with indicating if the system has access to various SIMD instruction sets, but also has other important info to share, such as the system's RAM size or the number of logical CPU cores.

Properties

CpuCacheLineSize

Gets the L1 cache size of the CPU in bytes

public static int CpuCacheLineSize { get; }

Property Value

int

The L1 cache size of the CPU in bytes

Remarks

This is useful for determining multi-threaded structure padding or SIMD prefetch sizes.

CpuLogicalCoreCount

Gets the number of logical CPU cores available in the system

public static int CpuLogicalCoreCount { get; }

Property Value

int

The number of logical CPU cores available in the system

HasAltiVec

Gets a value indicating whether the CPU has AltiVec features

public static bool HasAltiVec { get; }

Property Value

bool

A value indicating whether the CPU has AltiVec features

Remarks

The value of this property will always be false on CPUs that aren't using PowerPC instruction sets.

HasArmSimd

Gets a value indicating whether the CPU has ARM SIMD (ARMv6) features

public static bool HasArmSimd { get; }

Property Value

bool

A value indicating whether the CPU has ARM SIMD (ARMv6) features

Remarks

ARM SIMD (ARMv6) features are different from ARM NEON features, which are a different instruction set.

The value of this property will always be false on CPUs that aren't using ARM instruction sets.

HasAvx

Gets a value indicating whether the CPU has AVX features

public static bool HasAvx { get; }

Property Value

bool

A value indicating whether the CPU has AVX features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasAvx2

Gets a value indicating whether the CPU has AVX2 features

public static bool HasAvx2 { get; }

Property Value

bool

A value indicating whether the CPU has AVX2 features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasAvx512F

Gets a value indicating whether the CPU has AVX-512F (foundation) features

public static bool HasAvx512F { get; }

Property Value

bool

A value indicating whether the CPU has AVX-512F (foundation) features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasLasx

Gets a value indicating whether the CPU has LASX (LOONGARCH SIMD) features

public static bool HasLasx { get; }

Property Value

bool

A value indicating whether the CPU has LASX (LOONGARCH SIMD) features

Remarks

The value of this property will always be false on CPUs that aren't using LOONGARCH instruction sets.

HasLsx

Gets a value indicating whether the CPU has LSX (LOONGARCH SIMD) features

public static bool HasLsx { get; }

Property Value

bool

A value indicating whether the CPU has LSX (LOONGARCH SIMD) features

Remarks

The value of this property will always be false on CPUs that aren't using LOONGARCH instruction sets.

HasMmx

Gets a value indicating whether the CPU has MMX features

public static bool HasMmx { get; }

Property Value

bool

A value indicating whether the CPU has MMX features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasNeon

Gets a value indicating whether the CPU has NEON (ARM SIMD) features

public static bool HasNeon { get; }

Property Value

bool

A value indicating whether the CPU has NEON (ARM SIMD) features

Remarks

The value of this property will always be false on CPUs that aren't using ARM instruction sets.

HasSse

Gets a value indicating whether the CPU has SSE features

public static bool HasSse { get; }

Property Value

bool

A value indicating whether the CPU has SSE features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasSse2

Gets a value indicating whether the CPU has SSE2 features

public static bool HasSse2 { get; }

Property Value

bool

A value indicating whether the CPU has SSE2 features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasSse3

Gets a value indicating whether the CPU has SSE3 features

public static bool HasSse3 { get; }

Property Value

bool

A value indicating whether the CPU has SSE3 features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasSse41

Gets a value indicating whether the CPU has SSE4.1 features

public static bool HasSse41 { get; }

Property Value

bool

A value indicating whether the CPU has SSE4.1 features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

HasSse42

Gets a value indicating whether the CPU has SSE4.2 features

public static bool HasSse42 { get; }

Property Value

bool

A value indicating whether the CPU has SSE4.2 features

Remarks

The value of this property will always be false on CPUs that aren't using Intel instruction sets.

RamSize

Gets the amount of RAM configured in the system in MiB

public static int RamSize { get; }

Property Value

int

The amount of RAM configured in the system in MiB

SimdAlignment

Gets the alignment this system needs for available and known SIMD instructions in bytes

public static nuint SimdAlignment { get; }

Property Value

nuint

The alignment this system needs for available and known SIMD instructions in bytes

Remarks

The value of this property is the minimum number of bytes to which a pointer must be aligned to be compatible with SIMD instructions on the current machine. For example, if the machine supports SSE only, it will be 16, but if it supports AVX-512F, it will be 64 (etc).

The values of this property are only for instruction sets SDL knows about, so if your SDL build doesn't have HasAvx512F, then it might be 16 for the SSE support it sees and not 64 for the AVX-512 instructions that exist but SDL doesn't know about. Plan accordingly.