Changes between Version 2 and Version 3 of WikiStart

Timestamp:

08/29/11 21:35:37 (13 years ago)

Author:

lvpeng

Comment:

Start to add the FGBI info.

WikiStart

@@ -1 +1 @@
 = Welcome to FGBI Project =
 
-Trac is a '''minimalistic''' approach to '''web-based''' management of this project
-'''software projects'''. Its goal is to simplify effective tracking and handling of software issues, enhancements and overall progress.
+Traditional xen-based systems track memory updates by keeping evidence of the dirty pages at each migration epoch. For example, Remus uses the same page size as Xen (for x86, this is 4KB), which is also the granularity for detecting memory changes. FGBI (Fine-Grained Block Ideni?cation) is a mechanism which uses smaller memory blocks (smaller than page sizes) as the granularity for detecting memory changes. FBGI calculates the hash value for each memory block at the beginning of each migration epoch. At the end of each epoch, instead of transferring the whole dirty page, FGBI computes new hash values for each block and compares them with the corresponding old values. Blocks are only modi?ed if their corresponding hash values don’t match. Therefore, FGBI marks such blocks as dirty and replaces the old hash values with the new ones. Afterwards, FGBI only transfers dirty blocks to the backup host.
 
-All aspects of Trac have been designed with the single goal to 
-'''help developers write great software''' while '''staying out of the way'''
-and imposing as little as possible on a team's established process and
-culture.
-
-As all Wiki pages, this page is editable, this means that you can
-modify the contents of this page simply by using your
-web-browser. Simply click on the "Edit this page" link at the bottom
-of the page. WikiFormatting will give you a detailed description of
-available Wiki formatting commands.
+FGBI is based on Remus project and our previous efforts Lightweight Live Migration (LLM) mechanism.
 
 "[wiki:TracAdmin trac-admin] ''yourenvdir'' initenv" created