On 05/16/2013 09:12 PM, Richard W.M. Jones wrote: > On Tue, May 14, 2013 at 06:14:11PM +0530, Kashyap Chamarthy wrote: >> To summarize: >> >> L0 (bare-metal): >> - guestfish run: ~ 3 seconds >> >> L1 (guest): >> - w/o nesting, guestfish run: ~ 52 seconds >> - w/ nesting, guestfish run: ~ 8 seconds (Almost 6 1/2 times speed >> improvement) > > Or to put it another way, nested hardware virtualization is over twice > as slow as ordinary hardware virtualization :-)
:) But doesn't it look optimistic: given all the I/O, MMU, related on-going research, it might only get better ? > > However it's still a lot better than TCG, so this is good. Yes, I have on my TODO to write more coherent details after some further tests. Let me see if I could muster enough discipline to do it. Now that I mentioned here, it might put little more pressure on me. As an aside, when you get a moment, can you please enlighten a bit more on how often we (in Fedora, elsewhere) use TCG ? Meantime, I'm reading - http://git.qemu.org/?p=qemu.git;a=blob_plain;f=tcg/README;hb=HEAD Thanks. > > Rich. > -- /kashyap _______________________________________________ Libguestfs mailing list [email protected] https://www.redhat.com/mailman/listinfo/libguestfs
