From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: [for-4.9] Re: HVM guest performance regression Date: Fri, 26 May 2017 19:00:24 +0200 Message-ID: <2e6d9143-1abe-2f99-155f-f1071245ca41@suse.com> References: <55443407-5d99-0830-e8e0-6c2044c18ec9@suse.com> <22824.21930.185651.403388@mariner.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dEIbE-0001XY-8c for xen-devel@lists.xenproject.org; Fri, 26 May 2017 17:00:28 +0000 In-Reply-To: <22824.21930.185651.403388@mariner.uk.xensource.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Ian Jackson Cc: xen-devel , Stefano Stabellini , Wei Liu List-Id: xen-devel@lists.xenproject.org T24gMjYvMDUvMTcgMTg6MTksIElhbiBKYWNrc29uIHdyb3RlOgo+IEp1ZXJnZW4gR3Jvc3Mgd3Jp dGVzICgiSFZNIGd1ZXN0IHBlcmZvcm1hbmNlIHJlZ3Jlc3Npb24iKToKPj4gTG9va2luZyBmb3Ig dGhlIHJlYXNvbiBvZiBhIHBlcmZvcm1hbmNlIHJlZ3Jlc3Npb24gb2YgSFZNIGd1ZXN0cyB1bmRl cgo+PiBYZW4gNC43IGFnYWluc3QgNC41IEkgZm91bmQgdGhlIHJlYXNvbiB0byBiZSBjb21taXQK Pj4gYzI2ZjkyYjhmY2UzYzlkZjE3ZjdlZjAzNWI1NGQ5N2NiZTkzMWM3YSAoImxpYnhsOiByZW1v dmUgZnJlZW1lbV9zbGFjayIpCj4+IGluIFhlbiA0LjYuCj4+Cj4+IFRoZSBwcm9ibGVtIG9jY3Vy cmVkIHdoZW4gZG9tMCBoYWQgdG8gYmUgYmFsbG9vbmVkIGRvd24gd2hlbiBzdGFydGluZwo+PiB0 aGUgZ3Vlc3QuIFRoZSBwZXJmb3JtYW5jZSBvZiBzb21lIG1pY3JvIGJlbmNobWFya3MgZHJvcHBl ZCBieSBhYm91dAo+PiBhIGZhY3RvciBvZiAyIHdpdGggYWJvdmUgY29tbWl0Lgo+Pgo+PiBJbnRl cmVzdGluZyBwb2ludCBpcyB0aGF0IHRoZSBwZXJmb3JtYW5jZSBvZiB0aGUgZ3Vlc3Qgd2lsbCBk ZXBlbmQgb24KPj4gdGhlIGFtb3VudCBvZiBmcmVlIG1lbW9yeSBiZWluZyBhdmFpbGFibGUgYXQg Z3Vlc3QgY3JlYXRpb24gdGltZS4KPj4gV2hlbiB0aGVyZSB3YXMgYmFyZWx5IGVub3VnaCBtZW1v cnkgYXZhaWxhYmxlIGZvciBzdGFydGluZyB0aGUgZ3Vlc3QKPj4gdGhlIHBlcmZvcm1hbmNlIHdp bGwgcmVtYWluIGxvdyBldmVuIGlmIG1lbW9yeSBpcyBiZWluZyBmcmVlZCBsYXRlci4KPj4KPj4g SSdkIGxpa2UgdG8gc3VnZ2VzdCB3ZSBlaXRoZXIgcmV2ZXJ0IHRoZSBjb21taXQgb3IgaGF2ZSBz b21lIG90aGVyCj4+IG1lY2hhbmlzbSB0byB0cnkgdG8gaGF2ZSBzb21lIHJlc2VydmUgZnJlZSBt ZW1vcnkgd2hlbiBzdGFydGluZyBhCj4+IGRvbWFpbi4KPiAKPiBPaCwgZGVhci4gIFRoZSBtZW1v cnkgYWNjb3VudGluZyBzd2FtcCBhZ2Fpbi4gIENsZWFybHkgd2UgYXJlIG5vdAo+IGdvaW5nIHRv IGRyYWluIHRoYXQgc3dhbXAgbm93LCBidXQgSSBkb24ndCBsaWtlIHJlZ3Jlc3Npb25zLgo+IAo+ IEkgYW0gbm90IG9wcG9zZWQgdG8gcmV2ZXJ0aW5nIHRoYXQgY29tbWl0LiAgSSB3YXMgYSBiaXQg aWZmeSBhYm91dCBpdAo+IGF0IHRoZSB0aW1lOyBhbmQgYWNjb3JkaW5nIHRvIHRoZSByZW1vdmFs IGNvbW1pdCBtZXNzYWdlLCBpdCB3YXMKPiBiYXNpY2FsbHkgcmVtb3ZlZCBiZWNhdXNlIGl0IHdh cyBhIHBpZWNlIG9mIGNhcmdvIGN1bHQgZm9yIHdoaWNoIHdlCj4gaGFkIG5vIGp1c3RpZmljYXRp b24gaW4gYW55IG9mIG91ciByZWNvcmRzLgo+IAo+IEluZGVlZCBJIHRoaW5rIGZpeGluZyB0aGlz IGlzIGEgY2FuZGlkYXRlIGZvciA0LjkuCj4gCj4gRG8geW91IGtub3cgdGhlIG1lY2hhbmlzbSBi eSB3aGljaCB0aGUgZnJlZW1lbSBzbGFjayBoZWxwcyA/ICBJIHRoaW5rCj4gdGhhdCB3b3VsZCBi ZSBhIHByZXJlcXVpc2l0ZSBmb3IgcmV2ZXJ0aW5nIHRoaXMuICBUaGF0IHdheSB3ZSBjYW4gaGF2 ZQo+IGFuIHVuZGVyc3RhbmRpbmcgb2Ygd2h5IHdlIGFyZSBkb2luZyB0aGluZ3MsIHJhdGhlciB0 aGFuIGp1c3QKPiBmbGFpbGluZyBhdCByYW5kb20uLi4KCkkgd2lzaCBJIHdvdWxkIHVuZGVyc3Rh bmQgaXQuCgpPbmUgY2FuZGlkYXRlIHdvdWxkIGJlIDJNLzFHIHBhZ2VzIGJlaW5nIHBvc3NpYmxl IHdpdGggZW5vdWdoIGZyZWUKbWVtb3J5LCBidXQgSSBoYXZlbid0IHByb29mZWQgdGhpcyB5ZXQu IEkgY2FuIGhhdmUgYSB0cnkgYnkgZGlzYWJsaW5nCmJpZyBwYWdlcyBpbiB0aGUgaHlwZXJ2aXNv ci4KCldoYXQgbWFrZXMgdGhlIHdob2xlIHByb2JsZW0gZXZlbiBtb3JlIG15c3RlcmlvdXMgaXMg dGhhdCB0aGUKcmVncmVzc2lvbiB3YXMgZGV0ZWN0ZWQgZmlyc3Qgd2l0aCBTTEUxMiBTUDMgKGd1 ZXN0IGFuZCBkb20wLCBYZW4gNC45CmFuZCBMaW51eCA0LjQpIGFnYWluc3Qgb2xkZXIgc3lzdGVt cyAoZ3Vlc3QgYW5kIGRvbTApLiBXaGlsZSB0cnlpbmcKdG8gZmluZCBvdXQgd2hldGhlciB0aGUg Z3Vlc3Qgb3IgdGhlIFhlbiB2ZXJzaW9uIGFyZSB0aGUgY3VscHJpdCBJCmZvdW5kIHRoYXQgdGhl IG9sZCBndWVzdCAoYmFzZWQgb24ga2VybmVsIDMuMTIpIHNob3dlZCB0aGUgbWVudGlvbmVkCnBl cmZvcm1hbmNlIGRyb3Agd2l0aCBhYm92ZSBjb21taXQuIFRoZSBuZXcgZ3Vlc3QgKGJhc2VkIG9u IGtlcm5lbAo0LjQpIHNob3dzIHRoZSBzYW1lIGJhZCBwZXJmb3JtYW5jZSByZWdhcmRsZXNzIG9m IHRoZSBYZW4gdmVyc2lvbiBvcgphbW91bnQgb2YgZnJlZSBtZW1vcnkuIEkgaGF2ZW4ndCBmb3Vu ZCB0aGUgTGludXgga2VybmVsIGNvbW1pdCB5ZXQKYmVpbmcgcmVzcG9uc2libGUgZm9yIHRoYXQg cGVyZm9ybWFuY2UgZHJvcC4KCgpKdWVyZ2VuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0 cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK