From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C33B0C433DF for ; Thu, 18 Jun 2020 23:53:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E8B520771 for ; Thu, 18 Jun 2020 23:53:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728015AbgFRXw5 (ORCPT ); Thu, 18 Jun 2020 19:52:57 -0400 Received: from mga09.intel.com ([134.134.136.24]:25986 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726478AbgFRXw5 (ORCPT ); Thu, 18 Jun 2020 19:52:57 -0400 IronPort-SDR: uDOPNHYfi4qTqIXjXZjw7Cu86/A23iRzosn9seIqujPcbL5aYI/ZFa7xKGhd2OZ/tPq7vLU2xm 6fjt5QFcJHIA== X-IronPort-AV: E=McAfee;i="6000,8403,9656"; a="144277058" X-IronPort-AV: E=Sophos;i="5.75,253,1589266800"; d="scan'208";a="144277058" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jun 2020 16:52:56 -0700 IronPort-SDR: psbdkD+6G/wejZSYFjX2b12pA6Cvb92ATM+V8uo5Sy3j3bL+kmDD4janj2vXNpCtz6JP3LlhGQ tWPdFZZ31U9g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,253,1589266800"; d="scan'208";a="477430092" Received: from orsmsx109.amr.corp.intel.com ([10.22.240.7]) by fmsmga005.fm.intel.com with ESMTP; 18 Jun 2020 16:52:55 -0700 Received: from orsmsx126.amr.corp.intel.com (10.22.240.126) by ORSMSX109.amr.corp.intel.com (10.22.240.7) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 18 Jun 2020 16:52:55 -0700 Received: from orsmsx101.amr.corp.intel.com ([169.254.8.209]) by ORSMSX126.amr.corp.intel.com ([169.254.4.235]) with mapi id 14.03.0439.000; Thu, 18 Jun 2020 16:52:55 -0700 From: "Derrick, Jonathan" To: "dhowells@redhat.com" CC: "linux-fsdevel@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Parallel compilation performance regression Thread-Topic: Parallel compilation performance regression Thread-Index: AQHWRcuWKh0BKGrzv0a8mEFl49sTbQ== Date: Thu, 18 Jun 2020 23:52:55 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.255.71.254] Content-Type: text/plain; charset="utf-8" Content-ID: <7BE1FE02EA899048B1B7FFDBD939B4A4@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org SGkgRGF2aWQsDQoNCkkndmUgYmVlbiBleHBlcmllbmNpbmcgYSBwZXJmb3JtYW5jZSByZWdyZXNz aW9uIHdoZW4gcnVubmluZyBhIHBhcmFsbGVsDQpjb21waWxhdGlvbiAoZWcsIG1ha2UgLWo3Mikg b24gcmVjZW50IGtlcm5lbHMuDQoNCkkgYmlzZWN0ZWQgaXQgdG8gdGhpcyBjb21taXQ6DQoNCmNv bW1pdCBiNjY3Yjg2NzM0NDMwMWUyNGYyMWQ0YTRjODQ0Njc1ZmY2MWQ4OWUxDQpBdXRob3I6IERh dmlkIEhvd2VsbHMgPGRob3dlbGxzQHJlZGhhdC5jb20+DQpEYXRlOiAgIFR1ZSBTZXAgMjQgMTY6 MDk6MDQgMjAxOSArMDEwMA0KDQogICAgcGlwZTogQWR2YW5jZSB0YWlsIHBvaW50ZXIgaW5zaWRl IG9mIHdhaXQgc3BpbmxvY2sgaW4gcGlwZV9yZWFkKCkNCiAgICANCiAgICBBZHZhbmNlIHRoZSBw aXBlIHJpbmcgdGFpbCBwb2ludGVyIGluc2lkZSBvZiB3YWl0IHNwaW5sb2NrIGluIHBpcGVfcmVh ZCgpDQogICAgc28gdGhhdCB0aGUgcGlwZSBjYW4gYmUgd3JpdHRlbiBpbnRvIHdpdGgga2VybmVs IG5vdGlmaWNhdGlvbnMgZnJvbQ0KICAgIGNvbnRleHRzIHdoZXJlIHBpcGUtPm11dGV4IGNhbm5v dCBiZSB0YWtlbi4NCiAgICANCg0KUHJpb3IgdG8gdGhpcyBjb21taXQgSSBnb3QgNzAlIG9yIHNv IHRocmVhZCBzYXR1cmF0aW9uIG9mIGNjMSBhbmQgYWZ0ZXINCml0IHJhcmVseSBnZXRzIGFib3Zl IDE1JSBhbmQgd291bGQgb2Z0ZW4gZHJvcCBkb3duIHRvIDEtMiB0aHJlYWRzLiBJdA0KZG9lc24n dCBsb29rIGxpa2UgYSBjbGVhbiByZXZlcnQgZWl0aGVyLiBMb29raW5nIGF0IHVwc3RyZWFtLCBp dCBzZWVtcw0KdGhhdCBzb21lIGxhdGVyIGNvZGUgY2hhbmdlZCB0aGUgd2FrZXVwLiBJJ20gbm90 IHJlYWxseSBzdXJlIGhvdyB0aGlzDQphbGwgZml0cyBpbnRvIHBhcmFsbGVsaXplZCBtYWtlLg0K DQpCZXN0DQpKb24NCg==