1 / 6

Shared Memory De-duplication

Shared Memory De-duplication. -EBRAHIM CUTLERYWALA -NIKHIL RAJPAL. Linux kernel . De-duplication : - precursor to sharing memory in Linux. Optimizes capacity of storage by removing duplicate data. Used in Virtual machines on same operating system. One of the approach – KSM .

guido
Download Presentation

Shared Memory De-duplication

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Shared Memory De-duplication -EBRAHIM CUTLERYWALA -NIKHIL RAJPAL

  2. Linux kernel De-duplication :- precursor to sharing memory in Linux. Optimizes capacity of storage by removing duplicate data. Used in Virtual machines on same operating system. One of the approach – KSM

  3. Kernel Shared Memory 2 red black trees – Stable and unstable. Candidates -> Unstable tree, merged(duplicates) -> Stable tree. Pages are scanned periodically . Search is based on checksum for each page. When any page found as duplicate, its shifted to stable tree.

  4. Implemetation Load- accepts list of the page id, checksum. Update- accepts another list or single node ,equivalent to page content changing. De-duplication- performs the algorithm to free memory space. Operations – insert, find, remove

  5. Questions??

  6. Thank you

More Related