From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [for-4.9] Re: HVM guest performance regression Date: Sat, 10 Jun 2017 22:27:30 -0400 Message-ID: <20170611022730.GD30966@char.us.oracle.com> References: <2e6d9143-1abe-2f99-155f-f1071245ca41@suse.com> <77637aaf-0c2c-fe90-2e37-3211ea9026e7@suse.com> <5de5e464-ae54-30b4-7a97-0a2dcbf91416@suse.com> <294d36b9-0ebb-647d-ecfa-7a4e2c0ada47@suse.com> <16819156-5a02-1f21-83c5-70507eed7a4b@suse.com> <1496955634.26212.6.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dJsbX-0002A5-DO for xen-devel@lists.xenproject.org; Sun, 11 Jun 2017 02:27:51 +0000 Content-Disposition: inline In-Reply-To: <1496955634.26212.6.camel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Dario Faggioli Cc: Juergen Gross , xen-devel , Stefano Stabellini , Ian Jackson , Wei Liu List-Id: xen-devel@lists.xenproject.org T24gVGh1LCBKdW4gMDgsIDIwMTcgYXQgMTE6MDA6MzRQTSArMDIwMCwgRGFyaW8gRmFnZ2lvbGkg d3JvdGU6Cj4gQnJpbmdpbmcgaW4gS29ucmFkIGJlY2F1c2UuLi4KPiAKPiBPbiBUaHUsIDIwMTct MDYtMDggYXQgMTE6MzcgKzAyMDAsIEp1ZXJnZW4gR3Jvc3Mgd3JvdGU6Cj4gPiBPbiAwNy8wNi8x NyAyMDoxOSwgU3RlZmFubyBTdGFiZWxsaW5pIHdyb3RlOgo+ID4gPiBPbiBXZWQsIDcgSnVuIDIw MTcsIEp1ZXJnZW4gR3Jvc3Mgd3JvdGU6Cj4gPiA+ID4gT24gMDYvMDYvMTcgMjE6MDgsIFN0ZWZh bm8gU3RhYmVsbGluaSB3cm90ZToKPiA+ID4gPiA+IAo+ID4gPiA+ID4gMikgUFYgc3VzcGVuZC9y ZXN1bWUKPiA+ID4gPiA+IDMpIHZlY3RvciBjYWxsYmFjawo+ID4gPiA+ID4gNCkgaW50ZXJydXB0 IHJlbWFwcGluZwo+ID4gPiA+ID4gCj4gPiA+ID4gPiAyKSBpcyBub3Qgb24gdGhlIGhvdCBwYXRo Lgo+ID4gPiA+ID4gSSBkaWQgaW5kaXZpZHVhbCBtZWFzdXJlbWVudHMgb2YgMykgYXQgc29tZSBw b2ludHMgYW5kIGl0IHdhcyBhCj4gPiA+ID4gPiBjbGVhciB3aW4uCj4gPiA+ID4gCj4gPiA+ID4g VGhhdCBtaWdodCBkZXBlbmQgb24gdGhlIGhhcmR3YXJlLiBDb3VsZCBpdCBiZSBuZXdlciBwcm9j ZXNzb3JzCj4gPiA+ID4gYXJlCj4gPiA+ID4gZmFzdGVyIGhlcmU/Cj4gPiA+IAo+ID4gPiBJIGRv bid0IHRoaW5rIHNvOiB0aGUgYWx0ZXJuYXRpdmUgaXQncyBhbiBlbXVsYXRlZCBpbnRlcnJ1cHQu IEl0J3MKPiA+ID4gc2xvd2VyIHVuZGVyIGFsbCBwb2ludHMgb2Ygdmlldy4KPiA+IAo+ID4gV2hh dCBhYm91dCBBUElDIHZpcnR1YWxpemF0aW9uIG9mIG1vZGVybiBwcm9jZXNzb3JzPyBBcmUgeW91 IHN1cmUKPiA+IGUuZy4KPiA+IHRpbWVyIGludGVycnVwdHMgYXJlbid0IGhhbmRsZWQgY29tcGxl dGVseSBieSB0aGUgcHJvY2Vzc29yPyBJIGd1ZXNzCj4gPiB0aGlzIG1pZ2h0IGJlIGZhc3RlciB0 aGFuIGxldHRpbmcgaXQgYmUgaGFuZGxlZCBieSB0aGUgaHlwZXJ2aXNvciBhbmQKPiA+IHRoZW4g dXNlIHRoZSBjYWxsYmFjayBpbnRvIHRoZSBndWVzdC4KPiA+IAo+IC4uLiBJIGtpbmQgb2YgcmVt ZW1iZXIgYW4gZW1haWwgZXhjaGFuZ2Ugd2UgaGFkLCBub3QgaGVyZSBvbiB0aGUgbGlzdCwKPiBi dXQgaW4gcHJpdmF0ZSwgYWJvdXQgc29tZSBhcHBhcmVudGx5IHdlaXJkIHNjaGVkdWxpbmcgYmVo YXZpb3IgeW91Cj4gd2VyZSBzZWVpbmcsIHRoZXJlIGF0IE9yYWNsZSwgb24gYSBwYXJ0aWN1bGFy IGJlbmNobWFyay9jdXN0b21lcidzCj4gd29ya2xvYWQuCj4gCj4gTm90IHRoYXQgdGhpcyBpcyBk aXJlY3RseSByZWxhdGVkLCBidXQgSSBzZWVtIHRvIGFsc28gcmVjYWxsIHRoYXQgeW91Cj4gbWFu YWdlZCB0byBmaW5kIG91dCB0aGF0IHNvbWUgb2YgdGhlIHBlcmYgZGlmZmVyZW5jZSAoYmV0d2Vl biBiYXJlbWV0YWwKPiBhbmQgZ3Vlc3QpIHdhcyBkdWUgdG8gdkFQSUMgYmVpbmcgZmFzdGVyIHRo YW4gdGhlIFBWIHBhdGggd2Ugd2VyZQo+IHRha2luZz8gV2hhdCBJIGRvbid0IHJlY2FsbCwgdGhv dWdoLCBpcyB3aGV0aGVyIHlvdXIgZ3Vlc3Qgd2FzIFBWIG9yCj4gKFBWKUhWTS4uLiBEbyB5b3Ug cmVtZW1iZXIgYW55dGhpbmcgbW9yZSBwcmVjaXNlbHkgdGhhbiB0aGlzPwoKSXQgd2FzIEhWTSBh bmQgaXQgd2FzIGEgMi42LjM5IGtlcm5lbC4gQW5kIGl0IHdhcyBkdWUgdG8gdGhlIExpbnV4IGtl cm5lbApzY2hlZHVsZXIgbm90IHNjaGVkdWxpbmcgYXBwbGljYXRpb25zIGJhY2sgdG8gYmFjayBv biB0aGUgc2FtZSBDUFUKYnV0IGluc3RlYWQgaGF2aW5nIHRoZW0gb24gc2VwZXJhdGUgQ1BVcy4g VGhlIGVuZCByZXN1bHQgYmVpbmcgdGhhdCB3aGVuCmFuIGFwcGxpY2F0aW9uIGJsb2NrZWQsIHRo ZSBrZXJuZWwgd291bGQgY2FsbCAnc2NoZWR1bGUoKScgYW5kIGluc3RlYWQKb2YgdGhlIG90aGVy IGFwcGxpY2F0aW9uIHJlc3VtaW5nLCB0aGUga2VybmVsIHdvdWxkIGdvIHRvIHNsZWVwICh1bnRp bAphIFZJUlEgVElNRVIpLgoKVGhlIHNvbHV0aW9uIHdhcyBxdWl0ZSBzaW1wbGUgLSBmb3JjZSB0 aGUga2VybmVsIHRvIHRoaW5rIHRoYXQgZXZlcnkKQ1BVIHdhcyBhIHNpYmxpbmcuIEFuZCB3ZSBm bHVzaGVkIHRoaXMgb3V0IG1vcmUgYW5kIHByb3ZpZGVkIGFuCidzbXQ9MScgb3B0aW9uIHNvIHRo YXQgdGhlIENQVSB0b3BvbG9neSB3YXMgZXhwb3NlZCAoYWxvbmcgd2l0aApwaW5uaW5nKS4KCj4g Cj4gSXQgd2FzIGxpa2Ugb25lIG9yIHR3byB5ZWFycyBhZ28uLi4gKEknbGwgZGlnIGluIHRoZSBh cmNoaXZlcyBmb3IgdGhlCj4gZW1haWxzLikKPiAKPiBSZWdhcmRzLAo+IERhcmlvCj4gLS0gCj4g PDxUaGlzIGhhcHBlbnMgYmVjYXVzZSBJIGNob29zZSBpdCB0byBoYXBwZW4hPj4gKFJhaXN0bGlu IE1hamVyZSkKPiAtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLQo+IERhcmlvIEZhZ2dpb2xpLCBQaC5ELCBodHRwOi8vYWJvdXQu bWUvZGFyaW8uZmFnZ2lvbGkKPiBTZW5pb3IgU29mdHdhcmUgRW5naW5lZXIsIENpdHJpeCBTeXN0 ZW1zIFImRCBMdGQuLCBDYW1icmlkZ2UgKFVLKQoKCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBs aXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK