[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] Domain Save Image Format proposal (draft B)

To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
From: Tim Deegan <tim@xxxxxxx>
Date: Wed, 12 Feb 2014 16:41:36 +0100
Cc: Shriram Rajagopalan <rshriram@xxxxxxxxx>, "Xen-devel@xxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, David Vrabel <david.vrabel@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Delivery-date: Wed, 12 Feb 2014 15:41:51 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

At 09:30 +0000 on 11 Feb (1392107440), Ian Campbell wrote:
> > checksum     CRC-32 checksum of the record body (including any trailing
> >              padding), or 0x00000000 if the checksum field is invalid.
> 
> Which CRC-32 :-P

CRC32C please; it's got hardware acceleration in SSE4.2.  There are
also options like Adler which are supposed to be faster in normal
arithmetic (not sure if that's still the case if you include tricks
like using vector multiply to fold the payload).

Tim.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel

References:
- [Xen-devel] Domain Save Image Format proposal (draft B)
  - From: David Vrabel
- Re: [Xen-devel] Domain Save Image Format proposal (draft B)
  - From: Ian Campbell

Prev by Date: Re: [Xen-devel] Domain Save Image Format proposal (draft B)
Next by Date: Re: [Xen-devel] [PATCH] xl: suppress suspend/resume functions on platforms which do not support it.
Previous by thread: Re: [Xen-devel] Domain Save Image Format proposal (draft B)
Next by thread: Re: [Xen-devel] Domain Save Image Format proposal (draft B)
Index(es):
- Date
- Thread

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.