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Mon, 24 Jul 2023 20:40:29 +0000 From: =?utf-8?q?Piotr_=C5=81obacz?= To: openembedded-core@lists.openembedded.org CC: Henry Kleynhans , Alex Stewart Subject: [OE-Core][PATCH v5 3/5] opkg-build: Add zstandard compressor support Date: Mon, 24 Jul 2023 22:40:16 +0200 Message-ID: <20230724204018.352695-3-p.lobacz@welotec.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230724204018.352695-1-p.lobacz@welotec.com> References: <20230724204018.352695-1-p.lobacz@welotec.com> X-ClientProxiedBy: BE1P281CA0317.DEUP281.PROD.OUTLOOK.COM (2603:10a6:b10:87::7) To VI1PR04MB5373.eurprd04.prod.outlook.com (2603:10a6:803:da::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1PR04MB5373:EE_|AS8PR04MB7608:EE_ X-MS-Office365-Filtering-Correlation-Id: 9ad52bf6-e9d9-445b-ae29-08db8c8637ca X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR04MB5373.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(396003)(366004)(136003)(376002)(39840400004)(346002)(451199021)(66556008)(66476007)(66946007)(316002)(4326008)(6916009)(54906003)(6486002)(6512007)(38100700002)(66899021)(83380400001)(52116002)(478600001)(6666004)(41300700001)(36756003)(8676002)(8936002)(1076003)(26005)(186003)(5660300002)(6506007)(86362001)(38350700002)(2906002)(2616005);DIR:OUT;SFP:1101; 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Mon, 24 Jul 2023 20:40:39 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/184810 From: Henry Kleynhans Add ztsd compressor option to support using zstandard for packages. Zstandard compression offers a significant speed increase at decompression time over the current default (xz). This is amplified on less capable hardware as used in embedded devices. Further more, it offers a slightly faster compression speed at the highest compression levels with a slightly lower compression ratio and the ability to choose your own compromise between fast compression speed with less compression and slower compression speed with more compression. Zstandard would therefore be a good solution for package compression when: * install time matters, especially if you are installing on less capable hardware * disk space is not a concern: lower compression can speed up developer builds, especially incremental builds * disk space is a concern: release builds can make use of the highest compression setting to reduce package sizes Signed-off-by: Henry Kleynhans Signed-off-by: Alex Stewart --- opkg-build | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/opkg-build b/opkg-build index 3333020..a9e45d4 100755 --- a/opkg-build +++ b/opkg-build @@ -183,6 +183,9 @@ compressor_ext() { lz4) echo lz4 ;; + zstd) + echo zst + ;; *) echo "*** Error: unsupported compression scheme: $1" >&2 @@ -198,7 +201,7 @@ B [B<-c>] [B<-C>] [B<-Z> I] [B<-a>] [B<-O>] [B<-o> I are found. The default behaviou =item B<-Z> I -Specify which compression type to use when building a package. Allowed values are B, B, B, B and B (default is B). +Specify which compression type to use when building a package. Allowed values are B, B, B, B, B and B (default is B). =item B<-a> I