User: Password:
Subscribe / Log in / New account

A look at Xen

A look at Xen

Posted Jun 30, 2005 14:32 UTC (Thu) by MarkWilliamson (subscriber, #30166)
In reply to: A look at Xen by patha
Parent article: A look at Xen

For details of live migration see:

Other papers under:

If you run software that dirties large amounts of memory then the precopy
approach doesn't work very well: in this case, the live migration code
will figure it out and cuts its losses by doing "stop and copy" -
incurring a longer stoppage but more efficient use of network bandwidth.

For real world server workloads it works well: Running Quake 3 servers
incurred a downtime of about 60ms (I think), whilst an Apache webserver
running SpecWeb incurred a downtime of 300ms and didn't drop any clients.

(Log in to post comments)

Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds