Messages in this thread | | | Subject | Re: [PATCH] x86: add the debugfs interface for the sysprof tool | From | Peter Zijlstra <> | Date | Wed, 20 Feb 2008 19:58:05 +0100 |
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On Wed, 2008-02-20 at 19:53 +0100, Peter Zijlstra wrote: > On Wed, 2008-02-20 at 10:39 -0800, Arjan van de Ven wrote: > > On Wed, 20 Feb 2008 19:16:15 +0100 > > Peter Zijlstra <a.p.zijlstra@chello.nl> wrote: > > > > > > > > On Tue, 2008-02-19 at 12:37 -0800, Arjan van de Ven wrote: > > > > From: Soren Sandmann <sandmann@redhat.com> > > > > Subject: [PATCH] x86: add the debugfs interface for the sysprof tool > > > > > > > > The sysprof tool is a very easy to use GUI tool to find out where > > > > userspace is spending CPU time. See > > > > http://www.daimi.au.dk/~sandmann/sysprof/ > > > > for more information and screenshots on this tool. > > > > > > > > Sysprof needs a 200 line kernel module to do it's work, this > > > > module puts some simple profiling data into debugfs. > > > > > > What is the added value over oprofile? > > > > it actually works and is usable by humans ;) > > # sysprof > > (sysprof:12480): Gtk-WARNING **: cannot open display: > > -ENOX
Usable for me is a cli interface. Also, I absolutely love opannotate.
For a fact, most of my professional userspace development days, I had to profile on remote machines with no X.
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