Xen Virtualization(cont)

Attended stage 3 ppts.
Doing scheduler validation experiments.
Going to netback.c code.

Xen Virtualization(cont.)

Experiments for need of QoS
- finding parameters for Bench mark load.
- pin vcpus to pcpu
- find utilization
Review of report Saransh and Piyush.

List of xm commands
http://www.centos.org/docs/5/html/Virtualization-en-US/virt-task-xm-managing.html

A discussion on VCPUs and CPU affinity
http://markmail.org/message/mlbmog4xdvqfcki3?q=how+to+get+info+about+the+cpus+for+using+xm+vcpu-pin+command&page=1&refer=63bw5tbz6mhwzxzx

Using vcpu-pin command
http://book.xen.prgmr.com/mediawiki/index.php/Scheduling

started experiments.
Review of reports.

Xen Virtualization(cont.)

Applied event channel patch on the kernel.
http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/7fe1c6d02a2b

Folder to be modified $XEN_HOME/linux-2.6-xen-sparse
source path - drivers/xen/core/evtchn.c

Remove the lines label -- and add those labeled ++
compile xen( make world , make install)

Also reading report , credit scheduler algorithm and experiments

Xen Virtualization (cont.)

Xen networking -
http://wiki.xensource.com/xenwiki/XenNetworking
http://lists.xensource.com/archives/html/xen-users/2006-02/msg00030.html
http://www.debian-administration.org/articles/360

cpu credit scheduler - setting cpu weights and caps.
xm sched-credit -d <domain>

Tried basic commands with xen networking and setting weights.

Xen Virtualization (cont.)

Installed Xen from source.
Installation proc -
Installed 2 dapper guest domains .
Installation proc -http://www.debian-administration.org/article/A_brief_introduction_to_xen-tools
Tried out basic xm commands.
[ Next - read Xen networking, how to set cpu weights , start exps]

Xen Virtualization

1. Reading previous reports and installing Xen.
2. ubuntu 7.04 Xen 3.1.3 source xorg-x11-dev pkg not found
3. gcc -B option not found.. trying binutils-dev. apt-get and wget config probelms