Re: [RFC PATCH 0/1] sample: bpf: introduce irqlat

[Song Chen]

hi Daniel,

Thanks for liking the idea.

My target is embedded devices, that's why i get started from ebpf C.bcc 
and bpftrace is a good idea, but i prefer taking one thing at a time, 
what's more, i'm not familiar with python, it might take longer.

Once C code is accepted, i will move myself to bcc and bpftrace. Is it 
ok for you?

BR

Song


在 2022/4/14 17:47, Daniel Borkmann 写道:
> On 4/14/22 11:07 AM, Song Chen wrote:
> > I'm planning to implement a couple of ebpf tools for preempt rt,
> > including irq latency, preempt latency and so on, how does it sound
> > to you?
>
> Sounds great, thanks! Please add these tools for upstream inclusion 
> either to bpftrace [0] or
> bcc [1], then a wider range of users would be able to benefit from them 
> as well as they are
> also shipped as distro packages and generally more widely used compared 
> to kernel samples.
>
> Thanks Song!
>
>    [0] https://github.com/iovisor/bpftrace/tree/master/tools
>    [1] https://github.com/iovisor/bcc/tree/master/libbpf-tools
>
> > Song Chen (1):
> >    sample: bpf: introduce irqlat
> >
> >   samples/bpf/.gitignore    |   1 +
> >   samples/bpf/Makefile      |   5 ++
> >   samples/bpf/irqlat_kern.c |  81 ++++++++++++++++++++++++++++++
> >   samples/bpf/irqlat_user.c | 100 ++++++++++++++++++++++++++++++++++++++
> >   4 files changed, 187 insertions(+)
> >   create mode 100644 samples/bpf/irqlat_kern.c
> >   create mode 100644 samples/bpf/irqlat_user.c