All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Daniel P. Berrange" <berrange@redhat.com>
To: Juan Quintela <quintela@redhat.com>
Cc: Peter Xu <peterx@redhat.com>,
	lvivier@redhat.com, qemu-devel@nongnu.org, dgilbert@redhat.com
Subject: Re: [Qemu-devel] [PATCH 1/6] tests: Add basic migration precopy test
Date: Wed, 18 Oct 2017 13:10:38 +0100	[thread overview]
Message-ID: <20171018121038.GE9719@redhat.com> (raw)
In-Reply-To: <87o9p4n0vb.fsf@secure.laptop>

On Wed, Oct 18, 2017 at 01:36:56PM +0200, Juan Quintela wrote:
> Peter Xu <peterx@redhat.com> wrote:
> > On Wed, Oct 04, 2017 at 12:39:28PM +0200, Juan Quintela wrote:
> >
> > [...]
> >
> >> +/* A simple PC boot sector that modifies memory (1-100MB) quickly
> >> + * outputing a 'B' every so often if it's still running.
> >> + */
> >> +unsigned char bootsect[] = {
> >> +  0xfa, 0x0f, 0x01, 0x16, 0x74, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
> >> +  0x0f, 0x22, 0xc0, 0x66, 0xea, 0x20, 0x7c, 0x00, 0x00, 0x08, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe4, 0x92, 0x0c, 0x02,
> >> +  0xe6, 0x92, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x8e, 0xd8, 0x66, 0xb8, 0x41,
> >> +  0x00, 0x66, 0xba, 0xf8, 0x03, 0xee, 0xb3, 0x00, 0xb8, 0x00, 0x00, 0x10,
> >> +  0x00, 0xfe, 0x00, 0x05, 0x00, 0x10, 0x00, 0x00, 0x3d, 0x00, 0x00, 0x40,
> >> +  0x06, 0x7c, 0xf2, 0xfe, 0xc3, 0x75, 0xe9, 0x66, 0xb8, 0x42, 0x00, 0x66,
> >> +  0xba, 0xf8, 0x03, 0xee, 0xeb, 0xde, 0x66, 0x90, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00,
> >> +  0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00, 0x27, 0x00, 0x5c, 0x7c,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> >> +  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa
> >> +};
> >
> > Not sure whether it would be nicer to put this section as binary into
> > QEMU's tree as shared, then other test code can use it too directly,
> > and it would be easier if someone wants to boot a VM running this
> > bootstrap code.  Thanks,
> 
> I am sharing this code now on a single place.  About getting this
> outside ... I will wait for someone that understand how this works, I
> have no clue neither how it works nor how to share/use/setup/....

FWIW, we already have a reusuable program that can be used to generate
load stress for testing live migration see tests/migration/stress.c
This gets compiled into a static binary, put into an initrd, and then
run by booting the host OS kernel. So the caveat is that this approach
only lets you test a QEMU emulator whose target arch matches the host.
That isn't much different from this boot sector though which only lets
you test the x86 system emulator.

Regards,
Daniel
-- 
|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|

  reply	other threads:[~2017-10-18 12:10 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-04 10:39 [Qemu-devel] [PATCH 0/6] Add make check tests for Migration Juan Quintela
2017-10-04 10:39 ` [Qemu-devel] [PATCH 1/6] tests: Add basic migration precopy test Juan Quintela
2017-10-04 12:33   ` Thomas Huth
2017-10-04 12:46     ` Juan Quintela
2017-10-04 13:07       ` Thomas Huth
2017-10-04 15:52   ` Eric Blake
2017-10-09  8:19   ` Peter Xu
2017-10-18 11:49     ` Juan Quintela
2017-10-16 11:59   ` Dr. David Alan Gilbert
2017-10-18  4:26   ` Peter Xu
2017-10-18 11:36     ` Juan Quintela
2017-10-18 12:10       ` Daniel P. Berrange [this message]
2017-10-19  3:18         ` Peter Xu
2017-10-19  9:09           ` Daniel P. Berrange
2017-10-19  9:16             ` Dr. David Alan Gilbert
2017-10-19  9:19               ` Daniel P. Berrange
2017-10-19  9:23                 ` Dr. David Alan Gilbert
2017-10-19  9:09           ` Dr. David Alan Gilbert
2017-10-18 12:03   ` Daniel P. Berrange
2017-10-18 12:49     ` Dr. David Alan Gilbert
2017-10-18 13:08       ` Daniel P. Berrange
2017-10-04 10:39 ` [Qemu-devel] [PATCH 2/6] tests: Add basic migration precopy tcp test Juan Quintela
2017-10-16 12:09   ` Dr. David Alan Gilbert
2017-10-18 11:51     ` Juan Quintela
2017-10-04 10:39 ` [Qemu-devel] [PATCH 3/6] tests: Add precopy test using deprecated commands Juan Quintela
2017-10-16 15:40   ` Dr. David Alan Gilbert
2017-10-18 11:52     ` Juan Quintela
2017-10-04 10:39 ` [Qemu-devel] [PATCH 4/6] tests: Add migration xbzrle test Juan Quintela
2017-10-16 16:07   ` Dr. David Alan Gilbert
2017-10-18 11:56     ` Juan Quintela
2017-10-19  9:06       ` Dr. David Alan Gilbert
2017-10-04 10:39 ` [Qemu-devel] [PATCH 5/6] tests: Add migration compress threads tests Juan Quintela
2017-10-09  8:28   ` Peter Xu
2017-10-18 11:59     ` Juan Quintela
2017-10-16 16:29   ` Dr. David Alan Gilbert
2017-10-18 11:57     ` Juan Quintela
2017-10-04 10:39 ` [Qemu-devel] [PATCH 6/6] tests: Move postcopy migration test to migrate-set-parameters Juan Quintela
2017-10-16 16:31   ` Dr. David Alan Gilbert
2017-10-04 13:25 ` [Qemu-devel] [PATCH 0/6] Add make check tests for Migration no-reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20171018121038.GE9719@redhat.com \
    --to=berrange@redhat.com \
    --cc=dgilbert@redhat.com \
    --cc=lvivier@redhat.com \
    --cc=peterx@redhat.com \
    --cc=qemu-devel@nongnu.org \
    --cc=quintela@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.