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GET /api/1.2/patches/833478/?format=api
{ "id": 833478, "url": "http://patchwork.ozlabs.org/api/1.2/patches/833478/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/DB6PR0801MB2053393718EE4BAE98915F00835C0@DB6PR0801MB2053.eurprd08.prod.outlook.com/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/1.2/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<DB6PR0801MB2053393718EE4BAE98915F00835C0@DB6PR0801MB2053.eurprd08.prod.outlook.com>", "list_archive_url": null, "date": "2017-11-02T18:41:58", "name": "[AArch64] Set default sched pressure algorithm", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b6492a9db80b7a09c225aa3ca7223236ae1a1027", "submitter": { "id": 67598, "url": "http://patchwork.ozlabs.org/api/1.2/people/67598/?format=api", "name": "Wilco Dijkstra", "email": "Wilco.Dijkstra@arm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/DB6PR0801MB2053393718EE4BAE98915F00835C0@DB6PR0801MB2053.eurprd08.prod.outlook.com/mbox/", "series": [ { "id": 11564, "url": "http://patchwork.ozlabs.org/api/1.2/series/11564/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=11564", "date": "2017-11-02T18:41:58", "name": "[AArch64] Set default sched pressure algorithm", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/11564/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/833478/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/833478/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-return-465777-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "mailing list gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; 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Thu, 02 Nov 2017 18:42:01 +0000", "from DB6PR0801MB2053.eurprd08.prod.outlook.com (10.168.86.22) by\n\tDB6PR0801MB2053.eurprd08.prod.outlook.com (10.168.86.22) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id\n\t15.20.156.4; Thu, 2 Nov 2017 18:41:58 +0000", "from DB6PR0801MB2053.eurprd08.prod.outlook.com\n\t([fe80::d9d5:2017:ca12:1d9d]) by\n\tDB6PR0801MB2053.eurprd08.prod.outlook.com\n\t([fe80::d9d5:2017:ca12:1d9d%18]) with mapi id 15.20.0156.009;\n\tThu, 2 Nov 2017 18:41:58 +0000" ], "DomainKey-Signature": "a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender:from\n\t:to:cc:subject:date:message-id:content-type\n\t:content-transfer-encoding:mime-version; q=dns; s=default; b=AyV\n\tARP3siKcp3ZrWK7uQzt0hf6vbmaFvnIl2QZ81OLGH1pfrOv8Mak6FBSzN7OkR+rp\n\tukuMruwgjAfddYsLBvDaOOxXWuwZOrMltIlALjns9o0BlZjnjjLf67GhquUzBqNy\n\tFjjuXyMau3eAwCBXk1u6YxOW7GyPhwXtdd8nnlxI=", "DKIM-Signature": "v=1; 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helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-465777-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"WlWUDhWG\"; dkim-atps=neutral", "sourceware.org; auth=none", "spf=none (sender IP is )\n\tsmtp.mailfrom=Wilco.Dijkstra@arm.com; " ], "x-ms-publictraffictype": "Email", "x-microsoft-exchange-diagnostics": "1; DB6PR0801MB2053;\n\t6:tNk7GpCK/YU0QHisY6RKoJoZgR7AfflKk2G/m/qoPkaYBsUrNgaFfBLK/E33B3PORMs/edvD4gseeBITyxa64qb6HHrFlXWbJ2Ua2WINwODXnxzx/3G8174mNBm6mn3LHExcZeGj9bhu/8BBrEnVFeHgUvGzJSyfHcPPRsSFwRuAeQSvxaxx0PdOLQ70ZCrqDk9jWnHPrQajyVNGIzVtNRREwIwqGmwUtH/60N11h90ZcRQuVZdj/8N3KT1R9JfR2NNBEApSd+SZv6+6UArxVmQM//wfLjHoRS0DswagQyYvtt7aM4JSRjLsxLfkaVTNzoMntg2nmNdgM+BA3BaaPA==;\n\t5:fEn/zM6pe1UIa6I8QFgSYmMc6zrYUJLMpKe0ADWbu0b+SODlTUG3kml7Bhon2IvHPor/nJ5s9/lwqmkDVB7pxsy1VKqqfY6gj/Pvp5gTbBPzdZJahvbUG58suelLH6DbtDUZhAadzgD5/jQFQ6hvvg==;\n\t24:PFz7Y35y2j9hOkXmxavhaQdBRpQCZbEfcxLaC9cquX4Da3rvRb/XPhS5yEXh0zzaAWW5rV30w3bqijcSwbLpF9uibOTiY8uHz8u0SLQJSP8=;\n\t7:m3K2KWPPi23f4wAd9tVblAyNCzH7TB8L2F0YDDvp63sCqOLZ+kNJcu+c/okV0Lfekdid9rAvflxuCErmjzvRA42ME9mrTqPm3WoHywr4lTRrXlMpuDiz1Dq7kc0xKq89aBKc+0Bn6x+hs7FSl7zsMrqvXg2Cl6Zk0u3Hwm66DumPIPGYJj5Hwd8o/xDFnjIOyVB1RBIL78PcOWwm+cMuIRx1N3zyVWPrstfVeY0eApI=", "x-ms-exchange-antispam-srfa-diagnostics": "SSOS;", "x-ms-office365-filtering-correlation-id": "72d5098d-487a-4933-69f1-08d5222165fb", "x-ms-office365-filtering-ht": "Tenant", "x-microsoft-antispam": "UriScan:; BCL:0; PCL:0;\n\tRULEID:(22001)(4534020)(4602075)(4627115)(201703031133081)(201702281549075)(48565401081)(2017052603199);\n\tSRVR:DB6PR0801MB2053; ", "x-ms-traffictypediagnostic": "DB6PR0801MB2053:", "nodisclaimer": "True", "x-exchange-antispam-report-test": "UriScan:(180628864354917);", "x-microsoft-antispam-prvs": "<DB6PR0801MB20530C0BF9509335EA643792835C0@DB6PR0801MB2053.eurprd08.prod.outlook.com>", "x-exchange-antispam-report-cfa-test": "BCL:0; PCL:0;\n\tRULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(2401047)(8121501046)(5005006)(100000703101)(100105400095)(3002001)(93006095)(93001095)(10201501046)(3231020)(6055026)(6041248)(20161123560025)(20161123558100)(20161123562025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123555025)(20161123564025)(6072148)(201708071742011)(100000704101)(100105200095)(100000705101)(100105500095);\n\tSRVR:DB6PR0801MB2053; BCL:0; PCL:0;\n\tRULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095);\n\tSRVR:DB6PR0801MB2053; ", "x-forefront-prvs": "047999FF16", "x-forefront-antispam-report": "SFV:NSPM;\n\tSFS:(10009020)(6009001)(376002)(346002)(39860400002)(199003)(377424004)(189002)(53936002)(5660300001)(14454004)(7696004)(8936002)(6436002)(54356999)(9686003)(86362001)(575784001)(6506006)(55016002)(81166006)(81156014)(105586002)(8676002)(106356001)(305945005)(66066001)(101416001)(50986999)(33656002)(3280700002)(3660700001)(74316002)(102836003)(6116002)(3846002)(6916009)(2906002)(72206003)(478600001)(189998001)(25786009)(5250100002)(54906003)(2900100001)(316002)(4326008)(97736004)(99286004)(68736007)(7736002);\n\tDIR:OUT; SFP:1101; SCL:1; SRVR:DB6PR0801MB2053;\n\tH:DB6PR0801MB2053.eurprd08.prod.outlook.com; FPR:; SPF:None;\n\tPTR:InfoNoRecords; A:1; MX:1; LANG:en; ", "received-spf": "None (protection.outlook.com: arm.com does not designate\n\tpermitted sender hosts)", "spamdiagnosticoutput": "1:99", "spamdiagnosticmetadata": "NSPM", "Content-Type": "text/plain; charset=\"iso-8859-1\"", "Content-Transfer-Encoding": "quoted-printable", "MIME-Version": "1.0", "X-OriginatorOrg": "arm.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "72d5098d-487a-4933-69f1-08d5222165fb", "X-MS-Exchange-CrossTenant-originalarrivaltime": "02 Nov 2017 18:41:58.1940\n\t(UTC)", "X-MS-Exchange-CrossTenant-fromentityheader": "Hosted", "X-MS-Exchange-CrossTenant-id": "f34e5979-57d9-4aaa-ad4d-b122a662184d", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DB6PR0801MB2053" }, "content": "The Arm backend sets the default sched-pressure algorithm to\nSCHED_PRESSURE_MODEL. Benchmarking on AArch64 shows this \nspeeds up floating point performance on SPEC - eg. CactusBSSN improves\nby ~16%. The gains are mostly due to less spilling, so enable this on AArch64\nby default.\n\nOK for commit?\n\n2017-11-02 Wilco Dijkstra <wdijkstr@arm.com>\n\n\t* config/aarch64/aarch64.c (aarch64_override_options_internal):\n\tSet PARAM_SCHED_PRESSURE_ALGORITHM to SCHED_PRESSURE_MODEL.\n\n--", "diff": "diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c\nindex 34456e96497ac7b6d2f9931187ff05619e1934a4..750b0bc29c0963742d5d7bb4ae4619d93bec3e4a 100644\n--- a/gcc/config/aarch64/aarch64.c\n+++ b/gcc/config/aarch64/aarch64.c\n@@ -9276,6 +9276,11 @@ aarch64_override_options_internal (struct gcc_options *opts)\n \t\t\t opts->x_param_values,\n \t\t\t global_options_set.x_param_values);\n \n+ /* Use the alternative scheduling-pressure algorithm by default. */\n+ maybe_set_param_value (PARAM_SCHED_PRESSURE_ALGORITHM, SCHED_PRESSURE_MODEL,\n+\t\t\t opts->x_param_values,\n+\t\t\t global_options_set.x_param_values);\n+\n /* Enable sw prefetching at specified optimization level for\n CPUS that have prefetch. Lower optimization level threshold by 1\n when profiling is enabled. */\n", "prefixes": [ "AArch64" ] }