On Fri, Jul 5, 2013 at 11:18 AM, Bruce Dubbs <bruce.du...@gmail.com> wrote: > Nathan Coulson wrote: >> Just had a few thoughts that could enhance the page (or possibly make >> it worse if I misunderstood linux aio. I imagine there's a reason why >> it was as hard to find as it was). >> >> >> >> linux Asynchronous I/O >> (http://ftp.debian.org/debian/pool/main/liba/libaio/libaio_0.3.109.orig.tar.gz) >> >> I have not found a modern homepage for it (best I found was >> http://lse.sourceforge.net/io/aio.html), but it sounds like it can >> give a io boost to storage devices under qemu, when your storage >> devices is a partition. Also sounds like it can cause corruption when >> your storage device is a loopback image/file. >> >> Installed via make prefix=/usr install. >> >> Automatically detected by qemu, or manually enabled by >> --enable-linux-aio, and used by the client when you call -drive >> file=...,aio=native >> >> Note about possible corruption using aio=native on file disk images: >> https://access.redhat.com/site/articles/41313 >> >> (possibly more info then we want to cover on the page, but *shrug* >> can't hurt in this email. My actual recommendation is to provide a >> link to libaio as an optional dependency. If we add a note saying it >> can be activated with aio=native, I would also recommend mentioning >> that the user use it solely on actual partitions [which will be fine >> for a lvm based system, probably a headache otherwise]). > > There are so many optional dependencies for qemu that are not in the > book, I didn't list them. I note that libaio is listed as an optional > dependency for mysql. > >> For qemu-ifup and qemu-ifdown, we use >> (append) to create them. We >> could use > to create a new file instead (A user will get the same >> results if they run it multiple times, there are no benefits to >> appending to those files) > > Yes, that looks like an oversight. I've fixed it in my sandbox and it > will be updated at my next commit. > >> Also there is the spice project, (which has given me more problems >> then it claims to solve so far [probably my fault]), which may be >> worth linking to. http://spice-space.org/. I think it can allow you >> to share clipboards, and provides a option for paravirtualized >> graphics [which is the part I was experimenting unsuccessfully with on >> a windows 64bit client] > > Something to consider, but I think that would end up as a page by itself > in the virtualization chapter. > > -- Bruce
Sounds good. Now to catch up to the other 200 messages in blfs-book, and then perhaps see if I can get systemd running. -- Nathan Coulson (conathan) ------ Location: British Columbia, Canada Timezone: PST (-8) Webpage: http://www.nathancoulson.com -- http://linuxfromscratch.org/mailman/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
