I can mount qcow2 img to nbd devices through guestfish or qemu-nbd I'm curious about which performance is better?
Richard W.M. Jones
2017-Jul-27 12:18 UTC
Re: [Libguestfs] performance between guestfish and qemu-nbd
On Thu, Jul 27, 2017 at 06:34:13PM +0800, lampahome wrote:> I can mount qcow2 img to nbd devices through guestfish or qemu-nbd > > I'm curious about which performance is better?They do quite different things, they're not comparable. Can you specifically give the commands you are trying? We might be able to give more sensible advice. Rich. -- Richard Jones, Virtualization Group, Red Hat people.redhat.com/~rjones Read my programming and virtualization blog: rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. fedoraproject.org/wiki/MinGW
lampahome
2017-Jul-27 16:23 UTC
Re: [Libguestfs] performance between guestfish and qemu-nbd
2017-07-27 20:18 GMT+08:00 Richard W.M. Jones <rjones@redhat.com>:> On Thu, Jul 27, 2017 at 06:34:13PM +0800, lampahome wrote: > > I can mount qcow2 img to nbd devices through guestfish or qemu-nbd > > > > I'm curious about which performance is better? > > They do quite different things, they're not comparable. > > Can you specifically give the commands you are trying? We might be > able to give more sensible advice. > > Rich. > > -- > Richard Jones, Virtualization Group, Red Hat people.redhat.com/~ > rjones > Read my programming and virtualization blog: rwmj.wordpress.com > Fedora Windows cross-compiler. Compile Windows programs, test, and > build Windows installers. Over 100 libraries supported. > fedoraproject.org/wiki/MinGW >guestfish: guestfish --rw -a demo.qcow2 -m /dev/nbd0 qemu-nbd: qemu-nbd -c /devnbd0 demo.qcow2 I just want to mount demo.qcow2 to a device