[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [patch] Add support for barriers to blk{back, front} drivers.
> -----Original Message----- > From: Gerd Hoffmann [mailto:kraxel@xxxxxxx] > Sent: 08 November 2006 15:38 > To: Gerd Hoffmann > Cc: Ian Pratt; xen-devel@xxxxxxxxxxxxxxxxxxx; ian.pratt@xxxxxxxxxxxx > Subject: Re: [Xen-devel] [patch] Add support for barriers to > blk{back,front} drivers. > > > ping. What is the status of this? Any remaining issues to be solved? I'd like to hear from the Solaris and BSD folks whether the linux notion of a barrier is stronger than used by those OSes (I know at least one OS that treats barriers as being between requests rather than implicitly both sides of a request as in Linux) and whether they feel that this would actually make any practical performance difference). It would also be good to know whether the other OSes could cope with linux's odd way of determining whether barriers are supported (i.e. send requests assuming they are and get failures if not). Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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