Optimise preinstall images for writing to MMC
Significant research has been done on the performance of SD cards. The results indicate that cards perform better with certain classes of filesystem configuration (e.g. alignment matching eraseblocks). The image construction scripts should apply as many of these optimisations as possible when creating preinstalled images to be written to SD. Further, when preinstall images are first expanded, jasper should attempt to optimise the expanded filesystem for the specific media into which it is expanding.
Article about the SD card alignment topic.
http://
Blueprint information
- Status:
- Complete
- Approver:
- David Mandala
- Priority:
- High
- Drafter:
- Jani Monoses
- Direction:
- Approved
- Assignee:
- Jani Monoses
- Definition:
- Approved
- Series goal:
- Accepted for oneiric
- Implementation:
-
Implemented
- Milestone target:
-
oneiric-alpha-2
- Started by
- Jani Monoses
- Completed by
- Jani Monoses
Related branches
Whiteboard
Work Items for oneiric-alpha-2:
[jani] Finish and test SD card alignment branch of debian-cd: DONE
[jani] Update jasper-initramfs to work with changed partitioning assumptions: DONE
[ogra] Deploy and test SD card alignment branch and the jasper changes in the build center: DONE
Work Items
Dependency tree
* Blueprints in grey have been implemented.
