Linaro Linux

Improve Android mass storage performance

Registered by Per Förlin

Improve Android mass storage performance

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
None
Direction:
Needs approval
Assignee:
None
Definition:
Approved
Series goal:
None
Implementation:
Unknown
Milestone target:
milestone icon backlog

Related branches

Sprints

Whiteboard

Notes from LDS:
Kyungmin Park is seeing a lot of issues with page cache in Android systems.
 * Could try ope
 * Android using FUSE, leading to lots of copies
  * Seeing issues with page cache on Android due to usb gadget driver
   * Options: mmap() anonymous pages
   * m_advise
   * open with O_DIRECT, but in case of usb_gadget, this causes

(?)

Work Items

Work items:
reproduce the page cache issue: TODO
evaluate different strategies to improve result: TODO
look at if there are possible solutions to the page cache issues: TODO
talk to google to understand why they use FUSE in the first place: TODO
contact USB Gadget maintainer and discuss this issue: TODO

Dependency tree

* Blueprints in grey have been implemented.

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