From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id C7587A74 for ; Fri, 30 Jun 2017 18:38:40 +0000 (UTC) Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 3E719152 for ; Fri, 30 Jun 2017 18:38:40 +0000 (UTC) From: Josef Bacik To: Steven Rostedt Date: Fri, 30 Jun 2017 18:37:59 +0000 Message-ID: <658A3F80-5E48-4EC4-A591-E3783AD3DADC@fb.com> References: <20170629195537.534445e7@gandalf.local.home> <20170629203224.6bf7f29a@gandalf.local.home> <20170629205218.5b9a7923@gandalf.local.home> <20170629211641.5aeb3af7@gandalf.local.home> <20170629212750.5c3542ee@gandalf.local.home> <20170629221245.489760b1@gandalf.local.home> <20170630025852.xjoif3aai6rny5a2@ast-mbp> <20170629230251.02f380cb@gandalf.local.home> <6AE378F0-42F7-45DE-9F3C-050A5019A1E8@fb.com> <20170630142956.7e0cb2d6@gandalf.local.home> <20170630143030.305b68a0@gandalf.local.home> In-Reply-To: <20170630143030.305b68a0@gandalf.local.home> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <77FF1E04EE85C74A8FAEAFE8BB05C81C@namprd15.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Cc: Tom Zanussi , ksummit , Peter Zijlstra , bristot , Julien Desfossez , Ingo Molnar , daolivei Subject: Re: [Ksummit-discuss] [TECH TOPIC] Pulling away from the tracing ABI quicksands List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , DQpbIEkgZm9yZ290IHRvIGFkZCBUb20gdG8gdGhlIENjIGxpc3QuIFNlbmRpbmcgYWdhaW4uIF0N Cg0KT24gRnJpLCAzMCBKdW4gMjAxNyAxNDoyOTo1NiAtMDQwMA0KU3RldmVuIFJvc3RlZHQgPHJv c3RlZHRAZ29vZG1pcy5vcmc+IHdyb3RlOg0KDQo+IE9uIEZyaSwgMzAgSnVuIDIwMTcgMTg6MjQ6 MTIgKzAwMDANCj4gSm9zZWYgQmFjaWsgPGpiYWNpa0BmYi5jb20+IHdyb3RlOg0KPiANCj4gPiBZ dXAgSeKAmWxsIHN0YXJ0IGJ1Z2dpbmcgcGVvcGxlIHRvIHN1Ym1pdCB0YWxrIHByb3Bvc2Fscywg c3RhcnRpbmcgd2l0aCB5b3UhICBJ4oCZbGwgcHV0IHVwIG15IHByb3Bvc2FsIGluIHRoZSBuZXh0 IGRheSBvciB0d28sIEkgdGhpbmsgQnJlbmRhbiBoYXMgc29tZXRoaW5nIGhl4oCZcyBnb2luZyB0 byB0YWxrIGFib3V0LiAgVGhhbmtzLCAgDQo+IA0KPiBJIHNob3VsZG4ndCBoYXZlIHVzZWQgdGhl IHRlcm0gInRhbGsiLCBhcyBpdCByZWFsbHkgaXMgYWxsIGFib3V0DQo+IGRpc2N1c3Npb25zLiBJ biBmYWN0LCBpZiB5b3UgbmVlZCBtb3JlIHRoYW4gb25lIHNsaWRlLCB5b3UgaGF2ZSB0b28NCj4g bWFueS4NCj4gDQo+IFRoYXQgc2FpZCwgSSBjb3VsZCBwcm9iYWJseSBjb21lIHVwIHdpdGggYSBm ZXcgdGhpbmdzLCBzdGFydGluZyB3aXRoDQo+IHRoaXMgdHJhY2UgZXZlbnQgaXNzdWUuIEJ1dCBp dCB3aWxsIGJlIHBvaW50bGVzcyBpZiBQZXRlciBaaWpsc3RyYSBhbmQNCj4gTWF0aGlldSBhcmUg bm90IHRoZXJlLg0KPiANCj4gQnV0IGhhdmluZyBpZGVhcyBhYm91dCBkeW5hbWljIGZpZWxkcyBp biB0cmFjZXBvaW50cyBpcyBhbHdheXMNCj4gaW50ZXJlc3RpbmcuIE5vdCB0byBtZW50aW9uIHRh bGtpbmcgYWJvdXQgVG9tIFphbnVzc2kncyBsYXRlc3QNCj4gaGlzdG9ncmFtIHdvcmsuIEl0IG1h eSBiZSBwcmV0dHkgbXVjaCBjb21wbGV0ZWQsIGJ1dCBJIHdvdWxkIGxpa2UgdG8NCj4gZGlzY3Vz cyB3aGVyZSB3ZSBnbyBmcm9tIHRoZXJlLg0KPiANCj4gT25lIGxhc3QgdGhpbmcuIEkgZG9uJ3Qg d2FudCB0byBoYXZlIHRvbyBtYW55IHJlc3BvbnNpYmlsaXRpZXMsIGFzIEknbQ0KPiBvbiB0aGUg TFBDIHByb2dyYW0gY29tbWl0dGVlIGFuZCBJIG5lZWQgdG8gbWFrZSBzdXJlIEkgaGF2ZSB0aW1l IHRvDQo+IGZ1bGZpbGwgYW55IGFjdGlvbiBpdGVtcyBJJ20gcmVzcG9uc2libGUgZm9yIGR1cmlu ZyB0aGUgY29uZmVyZW5jZS4NCj4gDQoNClllYWggcGx1bWJlcnMgaXMgYSB3ZWlyZCB2ZW51ZSBm b3IgdHJhY2luZywgSSBhbHdheXMgaG9wZSB0aGF0IHdlIGFyZSBnb2luZyB0byBoYXZlIHBlb3Bs ZSBsaWtlIEJyZW5kYW4gb3Igb3RoZXIgc3lzYWRtaW4teSBwZW9wbGUgc2hvdyB1cCBhbmQgc2F5 IOKAnHRoaXMgaXMgd2hhdCBzdWNrcyBhYm91dCB0cmFjaW5nLCBwbGVhc2UgZml4IGl04oCdLCBh bmQgdGhlbiB3ZSBjYW4gZ28gZml4IGl0LiAgSXQgZG9lc27igJl0IHJlYWxseSBzZWVtIHRvIGhh cHBlbiB0aGF0IHdheSB0aG8sIGFuZCBmb3IgdGhpbmdzIGxpa2UgdHJhY2luZyBBQkkgdGhlcmUg anVzdCBhcmVu4oCZdCB0aGUgcmlnaHQgcGVvcGxlIGluIHRoZSByb29tIHRvIGhhdmUgdGhhdCBr aW5kIG9mIGRpc2N1c3Npb24uICBNeSBwcm9wb3NhbCB3YXMganVzdCBnb2luZyB0byBiZSBhIGxh dW5kcnkgbGlzdCBvZiB0aGluZ3MgdGhhdCB3b3VsZCBtYWtlIG15IGxpZmUgZWFzaWVyLCBidXQg aXQgZG9lc27igJl0IHJlYWxseSB3YXJyYW50IGEgZnVsbCBtaWNyby1jb25mZXJlbmNlIHRvIGxp c3RlbiB0byBtZSBiaXRjaCBmb3IgYW4gaG91ci4gIElmIGl0IHR1cm5zIG91dCBub2JvZHkgZWxz ZSBoYXMgbXVjaCB0byB0YWxrIGFib3V0IHRoZW4gd2UgY2FuIGp1c3QgZGVjbGFyZSB0cmFjaW5n IGlzIGZlYXR1cmUgY29tcGxldGUgYW5kIHdlIGNhbiB0YWxrIGFib3V0IHNvbWV0aGluZyBlbHNl IDspLiAgVGhhbmtzLA0KDQpKb3NlZg0KDQoNCg0K