[ANNOUNCE] virtbench w/ kvm support

[ANNOUNCE] virtbench w/ kvm support

[Rusty Russell]

Hi all,

	I've been toying around with a benchmark suite for virtualization, and
I've just added kvm support.  You can download the source tarball
straight from the mercurial repo:

	http://ozlabs.org/~rusty/virtbench/
	http://ozlabs.org/~rusty/virtbench/?archive/tip.tar.bz2

README excerpt below.

Feedback and patches welcome!
Rusty.

Virtbench - Simple Benchmarking for Virtualization
	http://ozlabs.org/~rusty/virtbench

Virtbench is a set of (mainly micro-) benchmarks designed to assist
coders optimize their hypervisors.  Note that it won't tell you how
well a virtualization solution will perform in a real world situation.


Requirements:
	sudo
	/dev/net/tun: try "modprobe tun"
	The networks 192.168.19.0 and 192.168.12.0 free to be used.


Quickstart:
	# Build the code and root filesystems (will use sudo)
	make
	# Set the guest kernel location and maybe more
	vi ./SETTINGS
	# Run the benchmark (local mode)
	sudo ./virtbench local
	# Run the benchmark (kvm mode)
	sudo ./virtbench kvm


More information:

(Note that virtbench is very much a work in progress)

Virtbench spawns 4 virtual machines running the virtbench client, then
runs various tests on them.  It supports various backends, and you can
create a new directory to add new ones (see below):

	- local (simply run each client as a normal process)
	- lguest
	- kvm
	- qemu

Since most hypervisors require root privileges, virtbench is usually
run as root.

All benchmarks are measured as time taken to do some task, so smaller
is better.  Currently virtbench has 14 microbenchmarks and 4
inter-guest benchmarks, but you can write new ones (see below).

Options which might be useful:
	--ifname=<if>: use an interface other than "eth0" to get server IP.
	--rough: don't run benchmarks as many times.
	--distribution: show distribution details for results.
	--csv=<file>: record complete results to file
	--help: usage and list of benchmark names
	[benchnames]: run this/these benchmarks



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Re: [ANNOUNCE] virtbench w/ kvm support

[Avi Kivity]

Rusty Russell wrote:
> Hi all,
>
> 	I've been toying around with a benchmark suite for virtualization, and
> I've just added kvm support.  You can download the source tarball
> straight from the mercurial repo:
>
> 	http://ozlabs.org/~rusty/virtbench/
> 	http://ozlabs.org/~rusty/virtbench/?archive/tip.tar.bz2
>
> README excerpt below.
>
> Feedback and patches welcome!
>   

Virtbench does not have puppy-nature on x86_64:

[avi@cleopatra virtbench]$ make
cc -g -Wall -Wmissing-prototypes -DNUM_MACHINES=4 -o virtbench server.c 
results.c stdrusty.c talloc.c micro/context-switch.c micro/cow.c 
micro/exec.c micro/fork.c micro/int-syscall.c micro/libc-syscall.c 
micro/memburn.c micro/pio.c micro/pte-update.c micro/read-bandwidth.c 
micro/read-latency.c micro/vmcall.c inter/bandwidth.c inter/pingpong.c 
inter/sendfile.c inter/udp-bandwidth.c
results.c: In function ‘results_to_dist_summary’:
results.c:247: warning: format ‘%llu’ expects type ‘long long unsigned 
int’, but argument 4 has type ‘u64’
results.c: In function ‘results_to_quick_summary’:
results.c:274: warning: format ‘%llu’ expects type ‘long long unsigned 
int’, but argument 3 has type ‘u64’
results.c:274: warning: format ‘%llu’ expects type ‘long long unsigned 
int’, but argument 4 has type ‘u64’
results.c:274: warning: format ‘%llu’ expects type ‘long long unsigned 
int’, but argument 5 has type ‘u64’
results.c: In function ‘results_to_csv’:
results.c:287: warning: format ‘%llu’ expects type ‘long long unsigned 
int’, but argument 4 has type ‘u64’
cc -g -Wall -Wmissing-prototypes -DNUM_MACHINES=4 -o virtclient client.c 
stdrusty.c talloc.c micro/context-switch.c micro/cow.c micro/exec.c 
micro/fork.c micro/int-syscall.c micro/libc-syscall.c micro/memburn.c 
micro/pio.c micro/pte-update.c micro/read-bandwidth.c 
micro/read-latency.c micro/vmcall.c inter/bandwidth.c inter/pingpong.c 
inter/sendfile.c inter/udp-bandwidth.c
# 50M
dd if=/dev/zero of=rootfs/virtbench-root.tmp count=50 bs=1048576
50+0 records in
50+0 records out
52428800 bytes (52 MB) copied, 0.384909 seconds, 136 MB/s
mke2fs -q -F rootfs/virtbench-root.tmp
# /dev/xvda needed for xen
set -e; sudo mount -text2 -o,loop,rw rootfs/virtbench-root.tmp /mnt; \
trap 'sudo umount /mnt' 0; \
sudo mkdir /mnt/lib /mnt/tmp /mnt/dev /mnt/proc; \
sudo mknod /mnt/dev/null c 1 3; \
sudo mknod /mnt/dev/zero c 1 5; \
sudo mknod /mnt/dev/console c 5 1; \
sudo mknod /mnt/dev/xvda b 202 0; \
sudo mknod /mnt/dev/xvda1 b 202 1
sync
[ rootfs/virtbench-root -ot rootfs/virtbench-root-0 ] || cp 
rootfs/virtbench-root rootfs/virtbench-root-0
set -e; trap 'sudo umount /mnt' 0; \
sudo mount -text2 -o,loop,rw rootfs/virtbench-root-0 /mnt; \
sudo cp virtclient /mnt; \
sudo cp /lib/ld-linux* /mnt/lib; \
sudo cp /lib/libc* /mnt/lib; \
sudo cp -a /lib/tls /mnt/lib/tls
cp: cannot stat `/lib/ld-linux*': No such file or directory
make: *** [rootfs/virtbench-root-0] Error 1


-- 
error compiling committee.c: too many arguments to function


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Re: [ANNOUNCE] virtbench w/ kvm support

[Rusty Russell]

On Mon, 2007-04-23 at 15:49 +0300, Avi Kivity wrote:
> Rusty Russell wrote:
> > Hi all,
> >
> > 	I've been toying around with a benchmark suite for virtualization, and
> > I've just added kvm support.  You can download the source tarball
> > straight from the mercurial repo:
>
> Virtbench does not have puppy-nature on x86_64:

Hi Avi!

	Ah, I've been concentrating on i386.  I will do the port today (there's
also one test which is i386-specific, which needs to be
conditionalized).

I'll reply again when it's done...
Rusty.



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