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From: [email protected]
To: Matthew Wilcox <[email protected]>
Cc: Andy Lutomirski <[email protected]>,
	Stefano Garzarella <[email protected]>,
	Miklos Szeredi <[email protected]>,
	Kees Cook <[email protected]>,
	Christian Brauner <[email protected]>,
	[email protected], [email protected],
	Pavel Begunkov <[email protected]>,
	Linux API <[email protected]>,
	[email protected], [email protected]
Subject: Re: strace of io_uring events?
Date: Wed, 15 Jul 2020 20:12:12 -0400	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

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 <[email protected]> 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

      parent reply	other threads:[~2020-07-16  0:12 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-15 11:12 strace of io_uring events? Miklos Szeredi
2020-07-15 14:35 ` Andy Lutomirski
2020-07-15 17:11   ` Matthew Wilcox
2020-07-15 19:42     ` Pavel Begunkov
2020-07-15 20:09       ` Miklos Szeredi
2020-07-15 20:20         ` Pavel Begunkov
2020-07-15 23:07           ` Kees Cook
2020-07-16 13:14             ` Stefano Garzarella
2020-07-16 15:12               ` Kees Cook
2020-07-17  8:01                 ` Stefano Garzarella
2020-07-21 15:27                   ` Andy Lutomirski
2020-07-21 15:31                     ` Jens Axboe
2020-07-21 17:23                       ` Andy Lutomirski
2020-07-21 17:30                         ` Jens Axboe
2020-07-21 17:44                           ` Andy Lutomirski
2020-07-21 18:39                             ` Jens Axboe
2020-07-21 19:44                               ` Andy Lutomirski
2020-07-21 19:48                                 ` Jens Axboe
2020-07-21 19:56                                 ` Andres Freund
2020-07-21 19:37                         ` Andres Freund
2020-07-21 15:58                     ` Stefano Garzarella
2020-07-23 10:39                       ` Stefan Hajnoczi
2020-07-23 13:37                       ` Colin Walters
2020-07-24  7:25                         ` Stefano Garzarella
2020-07-16 13:17             ` Aleksa Sarai
2020-07-16 15:19               ` Kees Cook
2020-07-17  8:17               ` Cyril Hrubis
2020-07-16 16:24             ` Andy Lutomirski
2020-07-16  0:12     ` tytso [this message]

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