Hi experts:
There is a svm ASAN check error. My vpp version is 21.01-rc0~394-g798267aaa
DBGvpp#
==445==AddressSanitizer CHECK failed:
../../../../libsanitizer/asan/asan_mapping.h:377 "((AddrIsInMem(p))) != (0)"
(0x0, 0x0)
#0 0x774c158a (/root/net-base/script/../lib/libasan.so.5+0x11658a)
#
> On 14 Nov 2020, at 00:44, Christian Hopps wrote:
>
> Yeah, I ended up doing this. Would be nice to have access to a "double" vs
> "u64" type, but using vlib_set_counter works well enough for me.
>From the perspective of the stat infra it doesn’t much matter. As long as it’s
>64 bit aligne
Yeah, I ended up doing this. Would be nice to have access to a "double" vs
"u64" type, but using vlib_set_counter works well enough for me.
Thanks,
Chris.
> On Nov 13, 2020, at 5:16 PM, otr...@employees.org wrote:
>
> Hi Christian,
>
> Aboslutely. The periodic gauge callback is purely there fo
Hi Christian,
Aboslutely. The periodic gauge callback is purely there for sources that don't
provide the counters themselves.
E.g. used for polling mempry heaps, free buffers and so on.
You can just use a normal counter (counter.c) for your high frequency gauge.
Cheers,
Ole
> On 13 Nov 2020, a
This is a typical problem one would face with a pipeline mode of processing
packets. i.e. the over all performance of the pipeline is equal to the
performance of the lowest performing stage in the pipeline. Having a bigger
queue would help handle a burst or might solve the problem for a given pl
FWIW, I too have hit this issue. Basically VPP is designed to process a packet
from rx to tx in the same thread. When downstream nodes run slower, the
upstream rx node doesn't run, so the vector size in each frame naturally
increases, and then the downstream nodes can benefit from "V" (i.e., pro
Hi Paul ,Thank you for your answear. Iam sure that anyone who uses or maintain
this project is very competent, and as a beginner I'm grateful for that and
hopefully I Will be able to help it get even biggerWell, my goal is just build
a dashboard to make easier the process of managing Vpp, maybe
Hi Marcos.
Yes. Your assumption is correct. A library user expects access to the
library.
I'm going to ask the question that you haven't.
Why won't Ole, as maintainer, allow it?
The build system uses something called vppapigen to generate the c include
files and the json files. It could as eas
I have need to track a frequently updated value (pps rate during congestion
control), but I need this to be close to very frequently updated (basically
whenever I change the value which is based on RTT). It seems the current gauge
code you supply a callback which updates the counter (at a defaul
Thanks, you see reducing the number of VPP threads as an option to work this
issue around, since you would probably increase the vector rate per thread?
Best Regards
-Mensagem original-
De: vpp-dev@lists.fd.io Em nome de Klement Sekera via
lists.fd.io
Enviada em: sexta-feira, 13 de nov
Hi Paul,
> I just wanted to take a sec., and say thank you to Damjan/Ben for fixing
> VPP-1946. I documented an issue, and it was fixed in 2 days. That was an
> example of a great user experience!
Thanks for the kind word, your contribution is appreciated too: testing and
filling meaningful bu
I used the usual
1. start traffic
2. clear run
3. wait n seconds (e.g. n == 10)
4. show run
Klement
> On 13 Nov 2020, at 18:21, Marcos - Mgiga wrote:
>
> Understood. And what path did you take in order to analyse and monitor vector
> rates ? Is there some specific command or log ?
>
> Thanks
Understood. And what path did you take in order to analyse and monitor vector
rates ? Is there some specific command or log ?
Thanks
Marcos
-Mensagem original-
De: vpp-dev@lists.fd.io Em nome de ksekera via []
Enviada em: sexta-feira, 13 de novembro de 2020 14:02
Para: Marcos - Mgiga
Not completely idle, more like medium load. Vector rates at which I saw
congestion drops were roughly 40 for thread doing no work (just handoffs - I
hardcoded it this way for test purpose), and roughly 100 for thread picking the
packets doing NAT.
What got me into infra investigation was the fa
Hi All,
I just wanted to take a sec., and say thank you to Damjan/Ben for fixing
VPP-1946. I documented an issue, and it was fixed in 2 days. That was an
example of a great user experience!
Thank you!
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So you mean that this situation ( congestion drops) is most likely to occur
when the system in general is idle than when it is processing a large amount of
traffic?
Best Regards
Marcos
-Mensagem original-
De: vpp-dev@lists.fd.io Em nome de Klement Sekera via
lists.fd.io
Enviada em: s
>> Would you consider changing to a larger value in the official VPP code?
Maybe make it configurable?
I mean, after 28980 is merged and you still find tweaking the value helpful.
Vratko.
-Original Message-
From: vpp-dev@lists.fd.io On Behalf Of Klement Sekera via
lists.fd.io
Sent: Fri
> All available api are represented in python.
That is one part of it.
Not every "available" message is useable,
as some messages need corresponding VPP plugins,
which may be disabled.
>> all available Python modules to use in VPP API.
It depends on what do you mean by "Python module".
If you me
Hi Elias,
I’ve already debugged this and came to the conclusion that it’s the infra which
is the weak link. I was seeing congestion drops at mild load, but not at full
load. Issue is that with handoff, there is uneven workload. For simplicity’s
sake, just consider thread 1 handing off all the t
Hello VPP experts,
We are using VPP for NAT44 and we get some "congestion drops", in a
situation where we think VPP is far from overloaded in general. Then
we started to investigate if it would help to use a larger handoff
frame queue size. In theory at least, allowing a longer queue could
help av
Hi Marcos,
> On 13 Nov 2020, at 15:08, Marcos - Mgiga wrote:
>
>
>
>
> Hello There,
>
> I believe this is a trivial question, but where / how can I get a list of all
> avaialble Python modules to use in VPP API.
>
You can’t.
They are auto generated from the available json representations of
Hello There,
I believe this is a trivial question, but where / how can I get a list of
all avaialble Python modules to use in VPP API.
Best Regards
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Thanks Ben for your reply.
I found that we can get the VPP rate (size) information through vpp_get_stats
function.
/Joe
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