Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 21 Oct 2020 07:48:36 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 248652] iflib: netmap pkt-gen large TX performance difference between 11-STABLE and 12-STABLE/CURRENT on ix & ixl NIC
Message-ID:  <bug-248652-7501-7H22N6P03t@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-248652-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-248652-7501@https.bugs.freebsd.org/bugzilla/>

next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248652

Krzysztof Galazka <krzysztof.galazka@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |krzysztof.galazka@intel.com

--- Comment #30 from Krzysztof Galazka <krzysztof.galazka@intel.com> ---
(In reply to Vincenzo Maffione from comment #28)

Hi Vincenzo,

Good catch! Thanks a lot! The non-iflib version of ixl also sets a request
status flag on all 'End of packet' descriptors. I'm guessing that the
difference in performance is related to a dynamic interrupt moderation, whi=
ch
is disabled by default in iflib version of the driver. I'm a bit concerned
though about the 1 queue case. It think it would be good to put this fix in=
 a
separate review and let our validation team run some tests. Would you like =
me
to do it or do you prefer to do it yourself?

--=20
You are receiving this mail because:
You are on the CC list for the bug.=



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-248652-7501-7H22N6P03t>