On Mon, Feb 17, 2020 at 3:05 PM Mattias Rönnblom
wrote:
>
> On 2020-02-15 11:21, Jerin Jacob wrote:
> > On Fri, Jan 17, 2020 at 4:24 PM Jerin Jacob wrote:
> >> On Fri, Jan 17, 2020 at 4:00 PM Mattias Rönnblom
> >> wrote:
> LTTng kernel tracing only needs kmod support.
> For the userspa
On 2020-02-15 11:21, Jerin Jacob wrote:
> On Fri, Jan 17, 2020 at 4:24 PM Jerin Jacob wrote:
>> On Fri, Jan 17, 2020 at 4:00 PM Mattias Rönnblom
>> wrote:
LTTng kernel tracing only needs kmod support.
For the userspace tracing at minium following libraries are required.
a) LTT
On Fri, Jan 17, 2020 at 4:24 PM Jerin Jacob wrote:
>
> On Fri, Jan 17, 2020 at 4:00 PM Mattias Rönnblom
> wrote:
> >
>
> > > LTTng kernel tracing only needs kmod support.
> > > For the userspace tracing at minium following libraries are required.
> > >
> > > a) LTTng-UST
> > > b) LTTng-tools
> >
On Mon, Jan 27, 2020 at 9:43 PM Aaron Conole wrote:
>
> Jerin Jacob Kollanukkaran writes:
>
> > Hi All,
> >
> > I would like to add tracing support for DPDK.
> > I am planning to add this support in v20.05 release.
> >
> > This RFC attempts to get feedback from the community on
> >
> > a) Tracing
Jerin Jacob Kollanukkaran writes:
> Hi All,
>
> I would like to add tracing support for DPDK.
> I am planning to add this support in v20.05 release.
>
> This RFC attempts to get feedback from the community on
>
> a) Tracing Use cases.
> b) Tracing Requirements.
> b) Implementation choices.
> c) T
On Sat, 18 Jan 2020 10:14:31 -0500
wrote:
> It would be well worth considering one of the vpp techniques to minimize
> trace impact:
>
> static inline ring_handler_inline (..., int is_traced)
> {
> for (i = 0; i < vector_size; i++)
> {
> if (is_traced)
> {
> do_trace_w
+1 - thanks Dave
On 20/01/2020 04:48, Jerin Jacob Kollanukkaran wrote:
>> -Original Message-
>> From: d...@barachs.net
>> Sent: Saturday, January 18, 2020 8:45 PM
>> To: 'Ray Kinsella' ; Jerin Jacob Kollanukkaran
>> ; 'dpdk-dev'
>> Subject: [EXT] RE: [RFC] [dpdk-dev] DPDK Trace support
>
It would be well worth considering one of the vpp techniques to minimize trace
impact:
static inline ring_handler_inline (..., int is_traced)
{
for (i = 0; i < vector_size; i++)
{
if (is_traced)
{
do_trace_work;
}
normal_packet_processing;
}
}
ring
> -Original Message-
> From: d...@barachs.net
> Sent: Saturday, January 18, 2020 8:45 PM
> To: 'Ray Kinsella' ; Jerin Jacob Kollanukkaran
> ; 'dpdk-dev'
> Subject: [EXT] RE: [RFC] [dpdk-dev] DPDK Trace support
>
> It would be well worth considering one of the vpp techniques to minimize t
On Fri, Jan 17, 2020 at 4:14 PM David Marchand
wrote:
>
> On Fri, Jan 17, 2020 at 10:52 AM Jerin Jacob wrote:
> > > > If someone needs more time to think through or any clarification is
> > > > required then please discuss.
> > >
> > > I did not find the time to look at this.
> > > Some quick que
On Fri, Jan 17, 2020 at 4:00 PM Mattias Rönnblom
wrote:
>
> > LTTng kernel tracing only needs kmod support.
> > For the userspace tracing at minium following libraries are required.
> >
> > a) LTTng-UST
> > b) LTTng-tools
> > c) liburcu
> > d) libpopt-dev
>
> This "DPDK CTF trace emitter" would m
On Fri, Jan 17, 2020 at 10:52 AM Jerin Jacob wrote:
> > > If someone needs more time to think through or any clarification is
> > > required then please discuss.
> >
> > I did not find the time to look at this.
> > Some quick questions:
> > - is LTTng coming with out-of-tree kmod? making it hard t
On 2020-01-17 10:52, Jerin Jacob wrote:
> On Fri, Jan 17, 2020 at 1:35 PM David Marchand
> wrote:
>> On Fri, Jan 17, 2020 at 5:41 AM Jerin Jacob wrote:
>>> Yes this is when trace is enabled. If the trace is disabled then it
>>> will be the only a handful of cycles.
>>>
>> Two foll
On Fri, Jan 17, 2020 at 1:35 PM David Marchand
wrote:
>
> On Fri, Jan 17, 2020 at 5:41 AM Jerin Jacob wrote:
> >
> > > > > >
> > > > > > Yes this is when trace is enabled. If the trace is disabled then it
> > > > > > will be the only a handful of cycles.
> > > > > >
> > > > > Two follow-on questi
On Fri, Jan 17, 2020 at 5:41 AM Jerin Jacob wrote:
>
> > > > >
> > > > > Yes this is when trace is enabled. If the trace is disabled then it
> > > > > will be the only a handful of cycles.
> > > > >
> > > > Two follow-on questions:
> > > > 1. Is the trace enable/disable dynamic at runtime?
> > >
>
> > > >
> > > > Yes this is when trace is enabled. If the trace is disabled then it
> > > > will be the only a handful of cycles.
> > > >
> > > Two follow-on questions:
> > > 1. Is the trace enable/disable dynamic at runtime?
> >
> > Yes. See the requirement section.
> >
> > > 2. Have you investiga
On Mon, Jan 13, 2020 at 08:43:01PM +0530, Jerin Jacob wrote:
> On Mon, Jan 13, 2020 at 8:28 PM Bruce Richardson
> wrote:
> >
> > On Mon, Jan 13, 2020 at 08:16:07PM +0530, Jerin Jacob wrote:
> > > On Mon, Jan 13, 2020 at 6:36 PM Bruce Richardson
> > > wrote:
> > > >
> > > >
> > > > > So, Probably
On Mon, Jan 13, 2020 at 8:28 PM Bruce Richardson
wrote:
>
> On Mon, Jan 13, 2020 at 08:16:07PM +0530, Jerin Jacob wrote:
> > On Mon, Jan 13, 2020 at 6:36 PM Bruce Richardson
> > wrote:
> > >
> > >
> > > > So, Probably it good to have native CTF emitter in DPDK and reuse all
> > > > open-source tr
On Mon, Jan 13, 2020 at 08:16:07PM +0530, Jerin Jacob wrote:
> On Mon, Jan 13, 2020 at 6:36 PM Bruce Richardson
> wrote:
> >
> >
> > > So, Probably it good to have native CTF emitter in DPDK and reuse all
> > > open-source trace viewer(babeltrace and TraceCompass) and format(CTF)
> > > infrastru
On Mon, Jan 13, 2020 at 6:36 PM Bruce Richardson
wrote:
>
>
> > So, Probably it good to have native CTF emitter in DPDK and reuse all
> > open-source trace viewer(babeltrace and TraceCompass) and format(CTF)
> > infrastructure.
> > I think, it would be best of both world.
> >
> > Any thoughts on
On Mon, Jan 13, 2020 at 10:40:13AM +, Jerin Jacob Kollanukkaran wrote:
> Hi All,
>
> I would like to add tracing support for DPDK.
> I am planning to add this support in v20.05 release.
>
> This RFC attempts to get feedback from the community on
>
> a) Tracing Use cases.
> b) Tracing Require
Hi Jerin,
Any idea why lttng performance is so poor?
I would have naturally gone there to benefit from the existing toolchain.
Have you looked at the FD.io logging/tracing infrastructure for inspiration?
https://wiki.fd.io/view/VPP/elog
Ray K
On 13/01/2020 10:40, Jerin Jacob Kollanukkaran wrote
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