Have these been reviewed on the ext mailing list already? -- Darren
On 05/07/2013 02:48 AM, Robert Yang wrote: > * The benefits: > - Really support ext4 > - Support the sparse file (the sparse file became into the common file > before) > - Have a uniform code for ext2/3/4 generation > - Remove the depends on genext2fs-native > > * Impact > - Build time: > a) If we build fresh core-image-sato, there is nearly no impact. > b) If we do the image generation, which means: > $ bitbake core-image-sato > $ bitbake core-image-sato -ccleansstate > $ bitbake core-image-sato > About 50 extra seconds are needed, here is my test result: > Before the patches: 4m25s > After the patches: 5m17s > This is because the genext2fs is much faster than the > populate-extfs.sh, we will replace this script by the mke2fs when it > supports create the filesystem from a initial directory. > > - Disk space (take core-image-sato as an example) > a) The image file size is the same as before (529M) > b) The disk usage is a little different: (du -sh) > before now > ext2: 364M 388M > ext3: 381M 404M > ext4: 380M 387M > > We may need to adjust the IMAGE_OVERHEAD_FACTOR from 1.3 to 1.4. > > I have done some simple runtime testing on core-image-sato and > core-image-minimal, they worked well. > > // Robert > > The following changes since commit 3472c1f7ab409cd91c1d4782d9e00880b84e3ae8: > > grub-efi-native: Cleanup whitespace (2013-05-03 16:37:05 +0100) > > are available in the git repository at: > > git://git.pokylinux.org/poky-contrib robert/ext4 > http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=robert/ext4 > > Robert Yang (4): > e2fsprogs: the max length of debugfs argument is too short > e2fsprogs: let debugfs do sparse copy > e2fsprogs: add populate-extfs.sh > image_types.bbclass: replace genext2fs with populate-extfs.sh > > meta/classes/image_types.bbclass | 46 ++++---- > .../e2fsprogs-1.42.7/debugfs-too-short.patch | 28 +++++ > .../e2fsprogs/e2fsprogs-1.42.7/populate-extfs.sh | 93 ++++++++++++++++ > .../e2fsprogs/e2fsprogs-1.42.7/sparse_copy.patch | 114 > ++++++++++++++++++++ > .../recipes-devtools/e2fsprogs/e2fsprogs_1.42.7.bb | 4 + > 5 files changed, 257 insertions(+), 28 deletions(-) > create mode 100644 > meta/recipes-devtools/e2fsprogs/e2fsprogs-1.42.7/debugfs-too-short.patch > create mode 100644 > meta/recipes-devtools/e2fsprogs/e2fsprogs-1.42.7/populate-extfs.sh > create mode 100644 > meta/recipes-devtools/e2fsprogs/e2fsprogs-1.42.7/sparse_copy.patch > -- Darren Hart Intel Open Source Technology Center Yocto Project - Technical Lead - Linux Kernel _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
