at...
Thanks… Dave
-Original Message-
From: Colin Tregenza Dancer [mailto:c...@metaswitch.com]
Sent: Friday, September 1, 2017 11:01 AM
To: Dave Barach (dbarach) ; Ole Troan
; Neale Ranns (nranns)
Cc: vpp-dev@lists.fd.io
Subject: RE: [vpp-dev] Packet loss on use of API & cmdline
I
ists.fd.io
Subject: RE: [vpp-dev] Packet loss on use of API & cmdline
Dear Colin,
Of all of these, ip_neighbor_add_del seems like the one to tune right away.
The API message handler itself can be marked mp-safe right away. Both the ip4
and the ip6 underlying routines are thread-aware (mumble RP
rom: Colin Tregenza Dancer [mailto:c...@metaswitch.com]
Sent: Friday, September 1, 2017 8:51 AM
To: Dave Barach (dbarach) ; Ole Troan
Cc: vpp-dev@lists.fd.io
Subject: RE: [vpp-dev] Packet loss on use of API & cmdline
Hi Dave,
Thanks for looking at this.
I get repeated vlib_node_runtime_
From: Dave Barach (dbarach) [mailto:dbar...@cisco.com]
Sent: 01 September 2017 13:00
To: Colin Tregenza Dancer ; Ole Troan
Cc: vpp-dev@lists.fd.io
Subject: RE: [vpp-dev] Packet loss on use of API & cmdline
Dear Colin,
Please describe the scenario which leads to vlib_node_runtime_up
vpp-dev
Sent: Friday, September 1, 2017 6:12 AM
To: Ole Troan
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
Hi Ole,
Thanks for the quick reply.
I did think about making all the commands we use is_mp_safe, but was both
concerned about the extent of the wor
t other people's views.
Cheers,
Colin.
-Original Message-
From: Ole Troan [mailto:otr...@employees.org]
Sent: 01 September 2017 09:37
To: Colin Tregenza Dancer
Cc: Neale Ranns (nranns) ; Florin Coras
; vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
ds. I seems as if the debug commands which produce output can block
> whilst the data is flushed, and if this occurs with the barrier down, then we
> get similar overflow on the Rx rings. Having said that, because the API
> problems are more critical, I’ve not yet tried any workarou
lto:vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
Hi Colin,
Your comments were not taken as criticism ☺ constructive comments are always
greatly appreciated.
Apart from the non-MP safe APIs Florin mentioned, and the route add/del cases I
covered, the cons
,
Colin.
P.S. Have fun on the beach!
From: Neale Ranns (nranns) [mailto:nra...@cisco.com]
Sent: 22 August 2017 14:35
To: Colin Tregenza Dancer ; Florin Coras
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
Hi Colin,
Your comments were not taken as critici
Neale Ranns (nranns)" , Florin Coras
Cc: "vpp-dev@lists.fd.io"
Subject: RE: [vpp-dev] Packet loss on use of API & cmdline
Hi neale,
Thanks for the reply, and please don’t take my comments as a criticism of what
I think is a great project. I’m just trying to understand whet
Tregenza Dancer ; Florin Coras
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
Hi Colin,
The instances of barrier syncs you have correctly identified, occur only in the
exceptional cases of route addition/deletion and not in the typical
dvance for any insight you (or others) can offer.
Cheers,
Colin.
From: Florin Coras [mailto:fcoras.li...@gmail.com]
Sent: 22 August 2017 09:40
To: Colin Tregenza Dancer
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
Hi Colin,
Your assumption was right. Most
,
Colin.
From: Florin Coras [mailto:fcoras.li...@gmail.com]
Sent: 22 August 2017 09:40
To: Colin Tregenza Dancer
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Packet loss on use of API & cmdline
Hi Colin,
Your assumption was right. Most often than not, a binary API/CLI call results
ain,
>
> Colin.
> <>
> From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On
> Behalf Of Colin Tregenza Dancer via vpp-dev
> Sent: 19 August 2017 12:17
> To: vpp-dev@lists.fd.io
> Subject: [vpp-dev] Packet loss on use of API & cmdline
>
> Hi,
>
s again,
Colin.
From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On
Behalf Of Colin Tregenza Dancer via vpp-dev
Sent: 19 August 2017 12:17
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] Packet loss on use of API & cmdline
Hi,
I've been doing some prototyping and load test
Hi,
I've been doing some prototyping and load testing of the vpp dataplane, and
have observed packet loss when I issue API requests or use the debug command
line. Is this to be expected given the use of the worker_thread_barrier, or
might there be some way I could improve matters?
Currently I
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