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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM9PR10MB4869.EURPRD10.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: be79a71c-35b0-4b8c-4f7e-08da010aa496 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Mar 2022 13:50:44.8180 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: kL/EHppUC6T+0U2q/LzsPAlhr3Qx+H0LKXSo6mR/SmzTtFRjVmKHLXoxHB8joW9pOnllTRZZROtvG6WH+q/VnvPlj5JI3ZpjbEUus+oEZHc= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM8PR10MB4003 X-TUID: 70/lApS5Tp9a Hi Adriaan, > -----Original Message----- > From: isar-users@googlegroups.com On > Behalf Of Adriaan Schmidt > Sent: Thursday, February 10, 2022 7:25 AM > To: isar-users@googlegroups.com > Cc: Schmidt, Adriaan (T CED SES-DE) > Subject: [PATCH 0/6] imagetypes >=20 > This series introduces image types and conversions as known from OE. > The main motivation is to provide a more flexible way of generating and > processing images, without the need to insert custom tasks (e.g., current= ly > we have custom classes adding tasks for things like bz2 or xz compression= of > images in several downstream layers). >=20 > These patches have been tested on some of our layers, and also work with > some more "challenging" use cases like image-in-image recipes and custom > image types brought by layers. >=20 > It's not perfect (e.g., documentation is still missing). Also I added jus= t the > bare minimum of conversions, so there should probably be follow-ups for > additional compressions, or things like checksums, which can also be nice= ly > done with this. While testing this on larger images, I observed that the compression times = for "wic.xz" are much higher than with the manual approach in our internal = recipes. This is due to the XZ_OPTIONS =3D "-T0 -M200" and default compression level= . Compared to XZ_OPTIONS =3D "-T0 -9" (less compression, no memory limit), = the patch version is almost a magnitude slower (20 min vs 3min). Maybe we should just provide better default options here. Best regards, Felix