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From: Stephen Hemminger <stephen@networkplumber.org>
To: Patrick Robb <probb@iol.unh.edu>
Cc: David Marchand <david.marchand@redhat.com>, dev <dev@dpdk.org>,
	Aaron Conole <aconole@redhat.com>,
	ci@dpdk.org, Cody Cheng <ccheng@iol.unh.edu>
Subject: Re: pcapng_autotest unit test false positive
Date: Mon, 1 Apr 2024 17:46:24 -0700	[thread overview]
Message-ID: <20240401174624.124d2f2f@hermes.local> (raw)
In-Reply-To: <CAJvnSUDZF9oTtj9yg12WuYRAQSVLsqxdFbdtFNu5Om1S1sWB4g@mail.gmail.com>

On Mon, 1 Apr 2024 18:26:44 -0400
Patrick Robb <probb@iol.unh.edu> wrote:

> Another idea - maybe multiple timestamps are gathered from different
> CPU registers during the same test, and they are misaligned for that
> reason. Maybe we can try reducing the cores for each unit test to 1
> and checking whether the issue persists.

TSC is expected to be sync'd between cores. But of course packets can
arrive out of order on different cores.

      reply	other threads:[~2024-04-02  0:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-20 18:02 David Marchand
2024-03-22 17:12 ` Patrick Robb
2024-03-22 23:34   ` Stephen Hemminger
2024-04-01 22:26     ` Patrick Robb
2024-04-02  0:46       ` Stephen Hemminger [this message]

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