From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: Questions about Using Perf at Dom0 Date: Mon, 29 Aug 2016 17:24:46 -0400 Message-ID: <3192e9b7-09c2-7f68-8bbf-62d4bd247b1b@oracle.com> References: <10b5920a-f3ab-0d96-2835-36cbc2dcb566@oracle.com> <937182DE-C553-4BC8-98B5-EE5E79DA8116@umd.edu> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <937182DE-C553-4BC8-98B5-EE5E79DA8116@umd.edu> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Sanghyun Hong Cc: Tudor Dumitras , Alina Nicolae , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org T24gMDgvMjkvMjAxNiAwNTowOCBQTSwgU2FuZ2h5dW4gSG9uZyB3cm90ZToKPj4gWWVzLCB0aGlz IHdpbGwgYWxsb3cgdGhlIGh5cGVydmlzb3IgdG8gY29sbGVjdCBzYW1wbGVzIGZyb20gbXVsdGlw bGUKPj4gZ3Vlc3RzLiBIb3dldmVyLCB0aGUgdG9vbCAocGVyZikgcHJvYmFibHkgd29uJ3QgYmUg YWJsZSB0byBwcm9wZXJseQo+PiBwcm9jZXNzIHRoZXNlIHNhbXBsZXMuIEJ1dCB5b3UgY2FuIHRy eS4KPgo+IEkgdW5kZXJzdGFuZCwgdGh1cywgSSBhcHBsaWVkIHRoZSBwYXRjaGVzIGFuZCBzZXQK PiB0aGUgL3BtdV9tb2RlLyB0byAqYWxsKi4gSG93ZXZlciwgSeKAmW0gcmVhbGx5IGN1cmlvdXMg d2hhdCB5b3UgbWVhbiBieQo+IHRoZSB0b29sICgqcGVyZiopIHByb2JhYmx5IHdvbuKAmXQgYmUg YWJsZSB0byBwcm9wZXJseSBwcm9jZXNzIHRoZXNlCj4gc2FtcGxlcy4gSXMgdGhlcmUgYW55IHRo aW5ncyBJIGhhdmUgdG8gaGF2ZSBpbiBtaW5kIHdoaWxlIGNvbGxlY3RpbmcKPiB0aGUgY291bnRl cnMsIG9yIHdpbGwgaXQgaGF2ZSBpbmNvcnJlY3QgdmFsdWVzIG9mIHRoZSBjb3VudGVycz8KClRo ZSBoeXBlcnZpc29yIHdpbGwgcHJvdmlkZSBkb20wIHdpdGggYSByYXcgc2FtcGxlIChndWVzdCdz LCBkb20wJ3Mgb3IKaHlwZXJ2aXNvcidzKSBhbmQgdGhlbiBpdCdzIHRoZSBqb2Igb2YgZG9tMCBr ZXJuZWwgdG8gcHJvcGVybHkgdGFnIGFuZApmb3JtYXQgaXQgYW5kIG1ha2UgaXQgYXZhaWxhYmxl IHRvIHRoZSB1c2VybGFuZCAoaS5lLiBwZXJmIGl0c2VsZikuIFRoZQp0b29sIHdpbGwgdGhlbiBs b29rIGF0IHRoZSB0YWcgYW5kIGRpc3BsYXkgdGhlIGV2ZW50IGFzIGJlbG9uZ2luZyB0bwpob3N0 IChkb20wLCByZWFsbHkpIG9yIGd1ZXN0LiBUaGlzIGlzIHN1cHBvcnRlZCBmb3IgS1ZNLCB3aXRo ICdwZXJmIGt2bScKY29tbWFuZHMuCgpTbyBpZiB5b3UgY2FuIHJ1biBwZXJmIGt2bSBjb21tYW5k cyB0aGVuIHlvdSBtYXkgYmUgYWJsZSB0bwpkaWZmZXJlbnRpYXRlIGRvbTAncyBhbmQgZ3Vlc3Qn cyBzYW1wbGVzICh5b3Ugd2lsbCBhbHNvIHNlZSBoeXBlcnZpc29yCnNhbXBsZXMgYnV0IHRoZXkg d29uJ3QgZ2V0IHJlc29sdmVkIHRvIHN5bWJvbHMpLiBJIGFtIGp1c3Qgbm90IHN1cmUgcGVyCmt2 bSB3aWxsIHJ1biBvbiBhIG5vbi1LVk0gaG9zdC4gSSBoYWQgYSBwcml2YXRlIGNvcHkgd2hlcmUg aXQgZGlkIGJ1dAp0aGlzIHdhcyBiYXNlZCBvbiBhIGZhaXJseSBvbGQgdmVyc2lvbiBvZiBMaW51 eC4KCihBbHNvLCBzdGFjayBwcm9maWxpbmcgaXMgbm90IHN1cHBvcnRlZCBhdCBhbGwpLgoKPgo+ PiBZb3Ugd2lsbCB3YW50IHRvIHJ1biBkb20wIG9uIGFsbCBwaHlzaWNhbCBwcm9jZXNzb3JzIChp LmUuIG5vCj4+IGRvbTBfbWF4X3ZjcHVzIGJvb3Qgb3B0aW9uKSBhbmQgcGluIGFsbCBWQ1BVcyBm b3IgYm90aCBkb20wIGFuZCB0aGUKPj4gZ3Vlc3QuCj4KPiBTdXJlLCB0aGFua3MhIE15IG1hY2hp bmUgaGFzIGZvdXIgcGh5c2ljYWwgY29yZXMsIGFuZCBJ4oCZdmUgc2V0Cj4gdGhlIC9kb20wX21h eF92Y3B1cz00Ly4gSSB0aGluayBpdCB3aWxsIGhhdmUgdGhlIHNhbWUgZWZmZWN0IGluCj4gcmVt b3ZpbmcgdGhlIC9kb20wX21heF92Y3B1cy8gb3B0aW9uLgoKWWVzLgoKLWJvcmlzCgo+Cj4gQmVz dCwKPiBTYW5naHl1bi4KPgo+Cj4+IE9uIEF1ZyAyOSwgMjAxNiwgYXQgNDo1OSBQTSwgQm9yaXMg T3N0cm92c2t5Cj4+IDxib3Jpcy5vc3Ryb3Zza3lAb3JhY2xlLmNvbSA8bWFpbHRvOmJvcmlzLm9z dHJvdnNreUBvcmFjbGUuY29tPj4gd3JvdGU6Cj4+Cj4+IE9uIDA4LzI5LzIwMTYgMDI6NDIgUE0s IFNhbmdoeXVuIEhvbmcgd3JvdGU6Cj4+PiBIaSBCb3JpcywKPj4+Cj4+PiBJ4oCZdmUgZm91bmQg dGhlCj4+PiBkb2N1bWVudGF0aW9ucyhodHRwczovL2dpdGh1Yi5jb20vdG9ydmFsZHMvbGludXgv YmxvYi9tYXN0ZXIvRG9jdW1lbnRhdGlvbi9BQkkvdGVzdGluZy9zeXNmcy1oeXBlcnZpc29yLXBt dSkKPj4+IGluIHRoZSBrZXJuZWwgc291cmNlIGNvZGUsIGFuZCBpdCBzZWVtcyBsaWtlIGlmIHdl IGNoYW5nZSB0aGUgbW9kZQo+Pj4gZnJvbSAqc2VsZiogdG8gKmFsbCogdGhlbiB3ZSBjYW4gY29s bGVjdCBjb3VudGVycyBmb3IgYWxsIHRoZSBkb21haW5zLAo+Pj4gcmlnaHQ/Cj4+Cj4+IFllcywg dGhpcyB3aWxsIGFsbG93IHRoZSBoeXBlcnZpc29yIHRvIGNvbGxlY3Qgc2FtcGxlcyBmcm9tIG11 bHRpcGxlCj4+IGd1ZXN0cy4gSG93ZXZlciwgdGhlIHRvb2wgKHBlcmYpIHByb2JhYmx5IHdvbid0 IGJlIGFibGUgdG8gcHJvcGVybHkKPj4gcHJvY2VzcyB0aGVzZSBzYW1wbGVzLiBCdXQgeW91IGNh biB0cnkuCj4+Cj4+IFlvdSB3aWxsIHdhbnQgdG8gcnVuIGRvbTAgb24gYWxsIHBoeXNpY2FsIHBy b2Nlc3NvcnMgKGkuZS4gbm8KPj4gZG9tMF9tYXhfdmNwdXMgYm9vdCBvcHRpb24pIGFuZCBwaW4g YWxsIFZDUFVzIGZvciBib3RoIGRvbTAgYW5kIHRoZQo+PiBndWVzdC4KPj4KPj4KPj4gLWJvcmlz Cj4+Cj4+Pgo+Pj4gQWxsIHRoZSBiZXN0LAo+Pj4gU2FuZ2h5dW4uCj4+Pgo+Pj4KPj4+PiBPbiBB dWcgMjksIDIwMTYsIGF0IDEyOjM2IFBNLCBCb3JpcyBPc3Ryb3Zza3kKPj4+PiA8Ym9yaXMub3N0 cm92c2t5QG9yYWNsZS5jb20gPG1haWx0bzpib3Jpcy5vc3Ryb3Zza3lAb3JhY2xlLmNvbT4KPj4+ PiA8bWFpbHRvOmJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPj4gd3JvdGU6Cj4+Pj4KPj4+PiBP biAwOC8yOS8yMDE2IDA5OjE4IEFNLCBTYW5naHl1biBIb25nIHdyb3RlOgo+Pj4+PiBEZWFyIFhl bi1EZXZlbCBDb21tdW5pdHk6Cj4+Pj4+Cj4+Pj4+IEnigJltIGEgZ3JhZCBzdHVkZW50IHdvcmtp bmcgb24gbWVhc3VyaW5nIHBlcmZvcm1hbmNlIGNvdW50ZXJzIGF0IHRoZQo+Pj4+PiBYZW4gZG9t YWlucy4gSSByZWFkIHRoaXMKPj4+Pj4gdGhyZWFkKGh0dHBzOi8vd2lraS54ZW5wcm9qZWN0Lm9y Zy93aWtpL1hlbl9Qcm9maWxpbmc6X29wcm9maWxlX2FuZF9wZXJmKQo+Pj4+PiBpbgo+Pj4+PiB3 ZWIsIGFuZCBpdCBzYXlzIHVzaW5nIExpbnV4IHBlcmYgY29tbWFuZCB3aWxsIGxldCB1cyBjb2xs ZWN0aW5nCj4+Pj4+IHBlcmZvcm1hbmNlIGNvdW50ZXJzIGluIGJvdGggZG9tMCBhbmQgZG9tVS4g RG9lcyBpdCBtZWFuIHRoYXQgd2UgY2FuCj4+Pj4+IGNvbGxlY3QgYm90aCBvZiB0aGVtIGF0IG9u Y2UgaWYgd2UgcnVuIHBlcmYgY29tbWFuZCBvbiB0aGUgZG9tMD8gKElmCj4+Pj4+IG5vdCwgZG9l cyBpdCBtZWFuIHdlIGNhbiBjb2xsZWN0IGNvdW50ZXJzIGZvciBlYWNoIGRvbWFpbiBzZXBhcmF0 ZWx5Cj4+Pj4+IG9uY2Ugd2UgcnVuIHRoZSBwZXJmIGNvbW1hbmQgaW4gZWFjaCBkb21haW4/Cj4+ Pj4KPj4+PiBQcm9maWxpbmcgYm90aCBndWVzdCBhbmQgZG9tMCAoYW5kIHRoZSBoeXBlcnZpc29y KSByZXF1aXJlcyBjaGFuZ2VzIHRvCj4+Pj4gcGVyZiBhbmQgdGhvc2UgYXJlIG5vdCB0aGVyZSB5 ZXQuCj4+Pj4KPj4+PiBCdXQgeW91IGNhbiBydW4gcGVyZiBpbiBlYWNoIGd1ZXN0IChpbmNsdWRp bmcgZG9tMCkgc2VwYXJhdGVseS4gTWFrZQo+Pj4+IHN1cmUgeW91IGhhdmUgdnBtdT10cnVlIGJv b3Qgb3B0aW9uLgo+Pj4+Cj4+Pj4gLWJvcmlzCj4+Pj4KPj4+Pgo+Pj4+Cj4+Pj4KPj4+Pgo+Pj4K Pj4KPj4KPgoKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8v bGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK