Re: [PATCH experiment 00/35] stackless coroutine backend

[Paolo Bonzini]

On 3/10/22 18:42, Stefan Hajnoczi wrote:
> There are a lot of details to decide on in the translator tool and
> runtime to optimize the code. I think the way the stack frames are
> organized in this patch series is probably for convenience rather than
> performance.

Yes, sometimes the optimizations are there but mostly because they made 
my job easier.

> Out of curiousity, did you run the perf tests and compare against
> ucontext?

Not quite voluntarily, but I noticed I had to add one 0 to make them run 
for a decent amount of time.  So yeah, it's much faster than siglongjmp.

Paolo