From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dario Faggioli Subject: Re: Fwd: [v3 14/15] Update Posted-Interrupts Descriptor during vCPU scheduling Date: Fri, 17 Jul 2015 12:13:55 +0200 Message-ID: <1437128035.23656.31.camel@citrix.com> References: <1435123109-10481-15-git-send-email-feng.wu@intel.com> <55918214.4030102@citrix.com> <1435633087.25170.274.camel@citrix.com> <1435825253.25170.406.camel@citrix.com> <559E6EB7.3050609@eu.citrix.com> <559E96E0020000780008ED84@mail.emea.novell.com> <1436451512.22672.333.camel@citrix.com> <559E84EF.7060507@eu.citrix.com> <559F80C6020000780008F348@mail.emea.novell.com> <1436526348.22672.387.camel@citrix.com> <1436889757.13522.185.camel@citrix.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8445957096638164674==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Wu, Feng" Cc: "Tian, Kevin" , "keir@xen.org" , George Dunlap , "andrew.cooper3@citrix.com" , xen-devel , Jan Beulich , "Zhang, Yang Z" List-Id: xen-devel@lists.xenproject.org --===============8445957096638164674== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-TOBQzMpfJoVmZBumhr9Z" --=-TOBQzMpfJoVmZBumhr9Z Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2015-07-17 at 07:46 +0000, Wu, Feng wrote: > Hi Dario, >=20 Hi, > I finished the new patch with arch hooks, but seems something is wrong, > after assigning the NIC to guest, I ping some guy from the guest, the > latency is too big.=20 > Ok. What numbers are we talking about, just to have an idea. > So far I've not found the reason after debugging the code > for some time.=20 > Yeah, well, I can imagine it's a bit tricky. > I post the path here to see if you can find any obvious logic > errors in it. Or could you have a look at it to double check whether this= patch > exactly does the same thing as > [v3 14/15] Update Posted-Interrupts Descriptor during vCPU scheduling, > which works well.=20 > A will certainly have a look, and I'll try to compare it with the previous one. However, I guess you are testing the new version of the series, where more things than just this changed, or are you actually comparing branches, the only difference between which is the use of the new or the old patch? Also, I don't have any PI enabled hardware handy so, please, keep looking and debugging yourself, as you're in a better position than me, as I can only do code inspection. I'll let you know what I find. Regards, Dario --=20 <> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) --=-TOBQzMpfJoVmZBumhr9Z Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlWo1WMACgkQk4XaBE3IOsQpNQCfc0akhYQR+osJI04PDKigkYGE 5boAmgOxFmpnVyywv7SEs1D1P6vAPYFx =do02 -----END PGP SIGNATURE----- --=-TOBQzMpfJoVmZBumhr9Z-- --===============8445957096638164674== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel --===============8445957096638164674==--