On Wed, Jul 15, 2020 at 06:11:30PM +0100, Matthew Wilcox wrote: > On Wed, Jul 15, 2020 at 07:35:50AM -0700, Andy Lutomirski wrote: > > > On Jul 15, 2020, at 4:12 AM, Miklos Szeredi <miklos@xxxxxxxxxx> wrote: > > > This thread is to discuss the possibility of stracing requests > > > submitted through io_uring. I'm not directly involved in io_uring > > > development, so I'm posting this out of interest in using strace on > > > processes utilizing io_uring. > > > > > > Is there some existing tracing infrastructure that strace could use to > > > get async completion events? Should we be introducing one? I suspect the best approach to use here is use eBPF, since since sending asyncronously to a ring buffer is going to be *way* more efficient than using the blocking ptrace(2) system call... - Ted
