From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: xen 4.5.0 rtds scheduler perform poorly with 2vms Date: Wed, 2 Dec 2015 11:01:52 +0000 Message-ID: <1449054112.4424.42.camel@citrix.com> References: <1448410554.7833.119.camel@citrix.com> <1448644982.7833.290.camel@citrix.com> <1448814429.7833.303.camel@citrix.com> <1448960382.7833.307.camel@citrix.com> <2521561D-5389-4F81-B21D-54FD79252B51@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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: Meng Xu , Lars Kurth Cc: Dario Faggioli , "Yu-An(Victor) Chen" , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org T24gVHVlLCAyMDE1LTEyLTAxIGF0IDIzOjU0IC0wNjAwLCBNZW5nIFh1IHdyb3RlOgo+IEhpIExh cnMgYW5kIERhcmlvLAo+IAo+IDIwMTUtMTItMDEgNDoxMSBHTVQtMDY6MDAgTGFycyBLdXJ0aCA8 bGFycy5rdXJ0aC54ZW5AZ21haWwuY29tPjoKPiA+IAo+ID4gSSB3b25kZXIgd2hldGhlciB3ZSBu ZWVkIHRvIGFkZCBzb21lIGhlYWx0aCB3YXJuaW5ncyBhbmQgcmVjb21tZW5kZWQKPiA+IGJhY2tn cm91bmQgcmVhZGluZyB0byBodHRwOi8vd2lraS54ZW5wcm9qZWN0Lm9yZy93aWtpL1JURFMtQmFz ZWQtU2NoZWR1Cj4gPiBsZXIKPiAKPiAKPiBNYXliZSB3ZSBjb3VsZCBhZGQgc29tZSBoZWFsdGgg d2FybmluZyBhbmQgYWRkIGEgbGluayB0byB0aGlzIGRpc2N1c3Npb24/Cj4gTWlzY29uZmlndXJh dGlvbiBvZiB0aGUgc3lzdGVtIHdpbGwgdXN1YWxseSBjYXVzZSBwZXJmb3JtYW5jZQo+IGRlZ3Jh ZGF0aW9uLCBldmVuIGZvciB0aGUgb3RoZXIgc2NoZWR1bGVycywgc3VjaCBhcyBBUklOQzY1Mywg Y3JlZGl0LAo+IGNyZWRpdDIuCj4KPiBXaGF0IEknbSB0aGlua2luZyBpcyBob3cgbXVjaCBleHBl cnQgaW5mb3JtYXRpb24gd2Ugc2hvdWxkIGV4cG9zZSB0bwo+IHVzZXJzLiBTb21ldGltZXMsIGV4 cG9zaW5nIHRvbyBtdWNoIGluZm9ybWF0aW9uIG1heSBub3QgYmUgc28gaGVscGZ1bC4KPiBTb21l dGltZXMsIG1vcmUgaW5mb3JtYXRpb24ganVzdMKgwqBjYXVzZSBtb3JlIGNvbmZ1c2lvbi4KPiAK PiBXaGF0IGRvIHlvdSBndXlzIHRoaW5rIHdoaWNoIHR5cGUgb2YgaW5mb3JtYXRpb24gd2Ugc2hv dWxkIGluY2x1ZGU/CgpJIHRoaW5rIHRoZXJlIGlzIGFuIGltcG9ydGFudCBkaXN0aW5jdGlvbiBi ZXR3ZWVuIGNyZWRpdDIvY3JlZGl0IGFuZCBSVApzY2hlZHVsZXJzIHN1Y2ggYXMgYXJpbmMvcnRk cyBldGMsIHdoaWNoIGlzIHRoYXQgdGhlIGZvcm1lciBzaG91bGQganVzdAp3b3JrIG91dCBvZiB0 aGUgYm94IHdpdGggbm8gdHdlYWtpbmcgYXQgYWxsIHdoZXJlYXMgdGhlIGxhdHRlciBpbiBnZW5l cmFsCm5lZWQgc29tZSBzb3J0IG9mICJpbnRlbGxpZ2VudCBpbnB1dC9jb25maWd1cmF0aW9uIiB0 byBldmVuIGJlZ2luIHVzaW5nCnRoZW0gYW5kIGhhdmUgR0lHTyBwcm9wZXJ0aWVzIHdydCB0aGVp ciBwYXJhbWV0ZXJzLgoKKFRoYXQncyBub3QgdG8gc2F5IHlvdSBjYW4ndCB0d2VhayBjcmVkaXQq IGV0YyBhbmQgYnJlYWsgaXQgaWYgeW91IHdhbnQsIGJ1dCBvbmUgdHlwaWNhbGx5IGRvZXNuJ3Qg bmVlZCB0byBzdGFydCBkb2luZyBzbyBqdXN0IHRvIGdldCBzb21ldGhpbmcgcnVubmluZyBhdCBh bGwpLgoKQW5kIEFJVUkgdGhlICJpbnRlbGxpZ2VudCBpbnB1dC9jb25maWd1cmF0aW9uIiByZXF1 aXJlcyBzb21lIGFtb3VudCBvZiBiYWNrZ3JvdW5kIGluIFJUIHNjaGVkdWxpbmcsIGVsc2UgeW91 IGNhbiBnZXQgcGF0aG9sb2dpY2FsIHJlc3VsdHMgYW5kIHRoaW5rIHRoZSBzY2hlZHVsZXIgYW5k L29yIFhlbiBpcyBicm9rZW4uCgpTbyBJIHRoaW5rIHNvbWUgc29ydCBvZiB3YXJuaW5nIHRoYXQg dGhlIFJUIHNjaGVkdWxlcnMgZG8gbm90ICJqdXN0IHdvcmsiIGFuZCByZXF1aXJlIG9uZSB0byB1 bmRlcnN0YW5kIHRoZSBwcm9wZXJ0aWVzIG9mIHlvdXIgd29ya2xvYWRzIGFuZCB0aGUgc2NoZWR1 bGVycyBhbmQgdG8gZmVlZCB0aGVtIG5vbi1nYXJiYWdlIGlucHV0cyB3b3VsZCBiZSBhIHVzZWZ1 bCB0byBwZW9wbGUgd2hvIG1pZ2h0IG90aGVyd2lzZSBleHBlY3QgdG8ganVzdCAieGwgY3JlYXRl IiAobWF5YmUgd2l0aCBzb21lIHJhbmRvbSBpbnB1dHMgdG8gdGhlIHJlcXVpcmVkIHNldHRpbmdz KSBhbmQgaGF2ZSBhIHVzZWZ1bCByZXN1bHQuCgpIYXZpbmcgZ2l2ZW4gdGhhdCB3YXJuaW5nIEkg ZG9uJ3QgdGhpbmsgc29tZSBsaW5rcyB0byBzb21lIHJlbGV2YW50IGJhY2tncm91bmQgUlQgc3R1 ZmYgd291bGQgYmUgdG9vIG11Y2ggaW5mbywgbmVpdGhlciB3b3VsZCB0aGUgaW5jbHVzaW9uIG9m IHNvbWUgc3BlY2lmaWNzIGFib3V0IHRoZSBzcGVjaWZpYyBhbGdvcml0aG0uIEFmdGVyIGFsbCB0 aGF0IGJhY2tncm91bmQgYW5kIGluZm8gaXMgY3JpdGljYWwgdG8gYmVpbmcgYWJsZSB0byBydW4g YSBzeXN0ZW0gdXNpbmcgdGhvc2Ugc2NoZWR1bGVycywgaXNuJ3QgaXQ/CgpJYW4uCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGlu ZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1k ZXZlbAo=