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Re: [Discuss-gnuradio] Fedora 10 and svn head
From: |
'Eric Blossom' |
Subject: |
Re: [Discuss-gnuradio] Fedora 10 and svn head |
Date: |
Thu, 1 Jan 2009 19:01:43 -0800 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Thu, Jan 01, 2009 at 09:42:47PM -0500, Marcus D. Leech wrote:
> 'Eric Blossom' wrote:
> > On Thu, Jan 01, 2009 at 01:23:55PM -0500, Marcus D. Leech wrote:
> >
> >> I'm running on a quad-core Q6600 system, which I have overclocked to
> >> about 2.95Ghz, from 2.4Ghz. It's just
> >> barely able to keep up with two (complex, 8-bit) channels at 6.4Msps
> >> for my radio astronomy stuff. I can't get
> >> it to overclock any higher, until I get a cooler (currently using the
> >> stock fan).
> >>
> >
> > When you oprofile it, what's the big CPU user?
> >
> >
> OK, someone throw me a frickin bone here. I can't, for love nor
> money, find a way to get a vmlinux-uncompressed-with-symbols
> image for oprofile to use with my running F10 kernel. They ship
> kernel images compressed, and without symbols, and the older
> information on this (ca FC6) doesn't appear to work anymore--there's
> no "core-debuginfo" and "kernel-debuginfo" packages to
> install.
>
> So, to a first approximation, oprofile is next-to-useless for me.
> (Although it does helpfully tell me that the kernel and libgnuradio-core
> are the top two CPU users, but I'd really like more detail than that
> :-) ).
The kernel symbols are nice, but not essential.
$ sudo opcontrol --start
$ <run your app>
$ sudo opcontrol --dump
$ sudo opcontrol --stop
$ opreport -l -t 2
Then when you want to do it again,
$ sudo opcontrol --reset
$ sudo opcontrol --start
...
Eric