From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olaf Hering Subject: Re: [PATCH RFC] handle tsc_tolerance during migration between identical hosts Date: Wed, 19 Apr 2017 09:46:25 +0200 Message-ID: <20170419074624.GA29316@aepfle.de> References: <20170411093938.GA25549@aepfle.de> <58ECC547020000780014FCCC@prv-mh.provo.novell.com> <20170418095001.GA15953@aepfle.de> <58F604D402000078001517AB@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============5013998492162828571==" Return-path: In-Reply-To: <58F604D402000078001517AB@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org --===============5013998492162828571== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9jxsPFA5p3P2qPhR" Content-Disposition: inline --9jxsPFA5p3P2qPhR Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 18, Jan Beulich wrote: > >>> On 18.04.17 at 11:50, wrote: > > On Tue, Apr 11, Jan Beulich wrote: > >=20 > >> I'm afraid successful testing is not a sufficient criteria here. At > >> the very least the (so far missing) documentation needs to very > >> clearly point out the possible risks associated with using this > >> option. But with there not being any functional change when > >> the option is not being made use of, I don't think there's a > >> reason not to add this (for the adventurous). > >=20 > > This can be handled by refering to the documentation of > > 'tsc_mode=3Dnative', which is what this change actually does. >=20 > Does it? I've just looked at th patch again, and I didn't find any > such referral. Are you perhaps talking about some change you > only have done locally? To me it looks like ->vtsc decides if there is emulation or not. So in this sense tsc_mode remains "native" if the khz value is within the tolerance range. Olaf --9jxsPFA5p3P2qPhR Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EARECAB0WIQSkRyP6Rn//f03pRUBdQqD6ppg2fgUCWPcVzQAKCRBdQqD6ppg2 fpPYAJ4iF9iBkYS6o4uNmJbADEk8ktWe6wCg8nWm67k7Q323B0LUuOijxFxn57w= =BgT1 -----END PGP SIGNATURE----- --9jxsPFA5p3P2qPhR-- --===============5013998492162828571== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5v cmcveGVuLWRldmVsCg== --===============5013998492162828571==--