Re: [Qemu-devel] QCOW2 support for LZO compression

[Laszlo Ersek]

On 06/26/17 22:30, Denis V. Lunev wrote:

>  3.
> 
>     _zstd is multi-threaded, and it’s dangerous_
> 
> libzstd is single-threaded.
> There is a multi-thread extension, which is enabled in the CLI, but not
> in the library.
> There is also an experimental target which makes it possible to produce
> a MT-enabled library.
> Even in this case, the API remains single-threaded by default.
> It’s necessary to use dedicated entry points to enable multi-threading.
> TL;DR : zstd supports multithreading, but is single threaded by default.

That's a relief (to me anyway).

Thanks
Laszlo