F# records vs .net struct

Question

is f# records is the same as .net struct? I saw people talk about f# struct,are they use this term interchangable with F# records? Like in FSharp runs my algorithm slower than P

Answer 1

As Stephen said, it is a reference type. Here is the compiled code(release mode) of type Tup = {x: int; y: int}:

[Serializable, CompilationMapping(SourceConstructFlags.RecordType)]
public sealed class Tup : IEquatable, IStructuralEquatable, IComparable, IComparable, IStructuralComparable
{
    // Fields
    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    internal int x@;
    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    internal int y@;

    // Methods
    public Tup(int x, int y);
    ...

    // Properties
    [CompilationMapping(SourceConstructFlags.Field, 0)]
    public int x { get; }
    [CompilationMapping(SourceConstructFlags.Field, 1)]
    public int y { get; }
}