improve the performance of 'fread' for tcp socket

[avriltank]

I found the .net recv becomes very slow when the buffer size is big,it mallocs memory for the byte[] array,but the gc do not free the memory soon

[jakubmisek]

we try to avoid "unsafe" code, isn't there an issue on dotnet for this? Can we just make the buffer smaller?

[avriltank]

There is no issue,the Socket.Receive method is very slowly when the buffer size is big.

[avriltank]

I test in my project,the unsafe method can improve Almost 2.5x performance

[jakubmisek]

We can make the "length" smaller and receive it subsequently, or something. This is an extremely hacky solution hardcoded just for a single case.

PeachPie provides this PhpStream.Read method that should handle such cases. We can't put it just to the fread function.

[avriltank]

Yes,you are right!this is not a good idea for peachpie code,i try to find another solution.

[jakubmisek]

I test in my project,the unsafe method can improve Almost 2.5x performance

it is possible, but we can't implement it like this.

I would recommend implementing a C# method somewhere in your project, for example

PhpString fread_fast(Context ctx, PhpResource handle, int length) { ... }

Or we would need to find a "cleaner" workaround, so we can test it and maintain it.

[avriltank]

Yes,that is a good idea,thanks for your reply