Messages in this thread | | | Date | Mon, 6 Feb 2006 15:24:32 +0100 | From | Pavel Machek <> | Subject | Re: Which is simpler? (Was Re: [Suspend2-devel] Re: [ 00/10] [Suspend2] Modules support.) |
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Hi!
> > well, we can perfectly do 128K block... just read 128K into userspace > > buffer, flush it via single write to block device. That should get us > > very close enough to media speed. > > That'll help naturally, 128k sync blocks will be very close to async > performance for most cases. Most cases here being drives with write back > caching enabled, if that is disabled async will still be a big win. > > Is there any reason _not_ to just go with async io? Usually the code is > just as simple (or simpler), since the in-kernel stuff is inherently > async to begin with.
Keeping it simple... when we are moving to doing writeback in userland, anyway. Pavel -- Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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