Re: strace questions

[Noah Yan <yanyh@cs.uh.edu>]

How to write the strace output to a file. redirection is not working to write
kernel output.

Seth Arnold wrote:

> On Mon, Feb 10, 2003 at 03:34:16PM -0600, Noah Yan wrote:
> > strace can report system call and signal of a process. Is it used only for
> > testing some program?
>
> Primarily.
>
> > Can I use it on a already running process?
>
> man strace; look for -p.
>
> > If yes, does it impact the execution time or performance of the
> > process?
>
> I think it causes syscall times to roughly double. It may help to
> redirect output to a file, since waiting for terminals to disply text
> can take a while...
>
> --
> People who separate manpages from the programs
> they document would steal sheep.  -- apologies to Goudy
>
>   ------------------------------------------------------------------------
>    Part 1.2Type: application/pgp-signature

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