From: Mikael R Carlsson <Mikael.R.Carlsson@tietoevry.com>
To: "users@dpdk.org" <users@dpdk.org>
Subject: Configure timestamp source for dpdk-pdump on E810 and DPDK 19.11
Date: Fri, 6 May 2022 07:46:39 +0000
Message-ID: <DU0PR04MB92261EA274F5EC329FE4E6CBA6C59@DU0PR04MB9226.eurprd04.prod.outlook.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 657 bytes --]
Hi!
I am using a Intel E810-XXVDA4 and DPDK version 19.11. During troubleshooting we have captures outgoing traffic with dpdk-pdump:
dpdk-pdump -- --pdump 'port=1,queue=*,tx-dev=/tmp/tx.pcap
I have opened the pcap-file in wireshark and I can see that some packets are delayed. However, system behavior indicates that the delays I see in the pcap file are not correct, they are too big. My questions is, how is the timestamp on packets in the pcap from dpdk-pdump created, like NIC HW generated, CPU time at disk write etc. or something else? Are there any run-time or build-time options to change the source of the timestamps?
/ Mikael
[-- Attachment #2: Type: text/html, Size: 2526 bytes --]
next reply other threads:[~2022-05-06 7:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-06 7:46 Mikael R Carlsson [this message]
2022-05-06 14:55 ` Stephen Hemminger
2022-05-06 15:02 ` Stephen Hemminger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=DU0PR04MB92261EA274F5EC329FE4E6CBA6C59@DU0PR04MB9226.eurprd04.prod.outlook.com \
--to=mikael.r.carlsson@tietoevry.com \
--cc=users@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
DPDK usage discussions
This inbox may be cloned and mirrored by anyone:
git clone --mirror http://inbox.dpdk.org/users/0 users/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 users users/ http://inbox.dpdk.org/users \
users@dpdk.org
public-inbox-index users
Example config snippet for mirrors.
Newsgroup available over NNTP:
nntp://inbox.dpdk.org/inbox.dpdk.users
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git