[RFC] Open Source Contribution | GSoC Perf

[RFC] Open Source Contribution | GSoC Perf

[Anup Sharma]

Hello, Perf!
I'm interested in joining the perf community and learning more about how to start contributing because of my desire to learn more about the Linux kernel and performance.
I've only recently started using Perf Tool, but I'm really enjoying seeing the metrics and outcomes. I want to resolve a few inconsistencies I found on a wiki page while learning, so if you have any suggestions, please let me know.
1. LINK BROKEN under Tutorial-> Linux Sourcecode: /tools/perf (hyperlink: ) correct (
2. LINK BROKEN under Hardware Reference -> Performance Counters for Linux: hyperlink for PCL core kernel data structures, PCL core kernel internals, perf tool internals are not available. Can anyone help me to know why this contents are not available on wiki?
3. ALLIGNMENT : Under Glossary -> BPF counter, Off-CPU, Multiplexing is not alliged properly.
4. INFO MISSING: Under Glossary -> offcore is TODO.

I've also invested some time going though Brendan Gregg conference talk and wiki page,  I'd be delighted to contribute to any of the open tasks!
Thank you all for your time.

With regards,
Anup Sharma

Re: [RFC] Open Source Contribution | GSoC Perf

[Ian Rogers]

On Mon, Mar 6, 2023 at 1:04 PM Anup Sharma <anupnewsmail@gmail.com> wrote:
>
> Hello, Perf!
> I'm interested in joining the perf community and learning more about how to start contributing because of my desire to learn more about the Linux kernel and performance.
> I've only recently started using Perf Tool, but I'm really enjoying seeing the metrics and outcomes. I want to resolve a few inconsistencies I found on a wiki page while learning, so if you have any suggestions, please let me know.
> 1. LINK BROKEN under Tutorial-> Linux Sourcecode: /tools/perf (hyperlink: ) correct (
> 2. LINK BROKEN under Hardware Reference -> Performance Counters for Linux: hyperlink for PCL core kernel data structures, PCL core kernel internals, perf tool internals are not available. Can anyone help me to know why this contents are not available on wiki?
> 3. ALLIGNMENT : Under Glossary -> BPF counter, Off-CPU, Multiplexing is not alliged properly.
> 4. INFO MISSING: Under Glossary -> offcore is TODO.
>
> I've also invested some time going though Brendan Gregg conference talk and wiki page,  I'd be delighted to contribute to any of the open tasks!
> Thank you all for your time.

Thanks Anup!

Updating the wiki is great! I was looking at your changes, I'd
encourage linux-perf-users to checkout updates at:
https://perf.wiki.kernel.org/index.php/Special:RecentChanges

I wanted to give some feedback on just one of the changes:
https://perf.wiki.kernel.org/index.php?title=Tutorial&curid=22&diff=3921&oldid=3520
The maintainer's source tree is at:
https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/
which gets integrated into the main Linus tree at:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
I think it would be better to use these rather than which given the
version number in the URL looks quite out-of-date compared to Linux
6.2:
http://lxr.linux.no/linux+v2.6.39/tools/perf/

Thanks,
Ian

> With regards,
> Anup Sharma

Re: [RFC] Open Source Contribution | GSoC Perf

[Anup Sharma]

On Tue, Mar 07, 2023 at 10:57:23AM -0800, Ian Rogers wrote:
> On Mon, Mar 6, 2023 at 1:04 PM Anup Sharma <anupnewsmail@gmail.com> wrote:
> >
> > Hello, Perf!
> > I'm interested in joining the perf community and learning more about how to start contributing because of my desire to learn more about the Linux kernel and performance.
> > I've only recently started using Perf Tool, but I'm really enjoying seeing the metrics and outcomes. I want to resolve a few inconsistencies I found on a wiki page while learning, so if you have any suggestions, please let me know.
> > 1. LINK BROKEN under Tutorial-> Linux Sourcecode: /tools/perf (hyperlink: ) correct (
> > 2. LINK BROKEN under Hardware Reference -> Performance Counters for Linux: hyperlink for PCL core kernel data structures, PCL core kernel internals, perf tool internals are not available. Can anyone help me to know why this contents are not available on wiki?
> > 3. ALLIGNMENT : Under Glossary -> BPF counter, Off-CPU, Multiplexing is not alliged properly.
> > 4. INFO MISSING: Under Glossary -> offcore is TODO.
> >
> > I've also invested some time going though Brendan Gregg conference talk and wiki page,  I'd be delighted to contribute to any of the open tasks!
> > Thank you all for your time.
> 
> Thanks Anup!
> 
> Updating the wiki is great! I was looking at your changes, I'd
> encourage linux-perf-users to checkout updates at:
> https://perf.wiki.kernel.org/index.php/Special:RecentChanges
> 
> I wanted to give some feedback on just one of the changes:
> https://perf.wiki.kernel.org/index.php?title=Tutorial&curid=22&diff=3921&oldid=3520
> The maintainer's source tree is at:
> https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/
> which gets integrated into the main Linus tree at:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
> I think it would be better to use these rather than which given the
> version number in the URL looks quite out-of-date compared to Linux
> 6.2:
> http://lxr.linux.no/linux+v2.6.39/tools/perf/
>
Done. 
> Thanks,
> Ian
> 
> > With regards,
> > Anup Sharma

Re: [RFC] Open Source Contribution | GSoC Perf

[Anup Sharma]

On Tue, Mar 07, 2023 at 10:57:23AM -0800, Ian Rogers wrote:
> On Mon, Mar 6, 2023 at 1:04 PM Anup Sharma <anupnewsmail@gmail.com> wrote:
> >
> > Hello, Perf!
> > I'm interested in joining the perf community and learning more about how to start contributing because of my desire to learn more about the Linux kernel and performance.
> > I've only recently started using Perf Tool, but I'm really enjoying seeing the metrics and outcomes. I want to resolve a few inconsistencies I found on a wiki page while learning, so if you have any suggestions, please let me know.
> > 1. LINK BROKEN under Tutorial-> Linux Sourcecode: /tools/perf (hyperlink: ) correct (
> > 2. LINK BROKEN under Hardware Reference -> Performance Counters for Linux: hyperlink for PCL core kernel data structures, PCL core kernel internals, perf tool internals are not available. Can anyone help me to know why this contents are not available on wiki?
> > 3. ALLIGNMENT : Under Glossary -> BPF counter, Off-CPU, Multiplexing is not alliged properly.
> > 4. INFO MISSING: Under Glossary -> offcore is TODO.
> >
> > I've also invested some time going though Brendan Gregg conference talk and wiki page,  I'd be delighted to contribute to any of the open tasks!
> > Thank you all for your time.
> 
> Thanks Anup!
> Updating the wiki is great! I was looking at your changes, I'd
> encourage linux-perf-users to checkout updates at:
> https://perf.wiki.kernel.org/index.php/Special:RecentChanges
> 
> I wanted to give some feedback on just one of the changes:
> https://perf.wiki.kernel.org/index.php?title=Tutorial&curid=22&diff=3921&oldid=3520
> The maintainer's source tree is at:
> https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/
> which gets integrated into the main Linus tree at:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
> I think it would be better to use these rather than which given the
> version number in the URL looks quite out-of-date compared to Linux
> 6.2:
> http://lxr.linux.no/linux+v2.6.39/tools/perf/
> 
> Thanks,
> Ian
> 
> > With regards,
> > Anup Sharma
Hello all, I have added a tutorial on Flame Graph and Firefox profiler at:
https://perf.wiki.kernel.org/index.php/Tutorial
Section 3.3 and 3.4.
Can someone please review and provide feedback regarding the same?

Also, I was a bit confused about where to add these tutorials, I have added them to section 3.