qemu-system-arm on my amd64 laptop seems quite a bit slower than
building on a cortex a9 imx.

I don't have numbers for qemu but on real hardware a few weeks ago:
bbb with nfs root, make build 25 hrs 31 min
cubox with usb flash root, make build 9 hrs 21 min

At least part of the bbb slowdown is likely due to the cpsw
hardware/driver.

On Mon, Jun 29, 2015 at 10:47:38PM -0500, Edwin Amsler wrote:
> Building on top of Qemu with dpb on my 2013 Macbook Pro with SSD doesn?t seem 
> fantastic at the moment either. The single core-ness on OpenBSD might be a 
> little to blame but the system usage is ~50% while building. Might be the 
> virtio drivers?
> 
> I?ll see about snapshotting the filesystem 8x and running a few more VMs with 
> one acting as an NFS server.
> 
> On Jun 15, 2015, at 9:59 PM, andrew fabbro <and...@fabbro.org> wrote:
> 
> > On Sat, May 23, 2015 at 9:30 PM, Philip Cheney <phi...@packwidth.net> wrote:
> > 
> >> So far, the only issue I've had building anything on arm is the speed
> >> difference. The limited hardware really does take its toll: limited RAM,
> >> extremely slow IO, heat issues with continuous high load on fanless
> >> systems. Building the entire ports tree in one go is not representative of
> >> most of this platform's use-cases, though.
> >> 
> > 
> > In the last 72 hours, I've built 81 packages for 5.7, compiling pretty much
> > continuously on my Beagle Bone Black.  I haven't seen any crashes, errors,
> > or problems (other than a couple of my own making/learning opportunities).
> > But yes, it's very slow - python took something like 20 hours to build
> > using the internal flash.
> > 
> > But hey, that's why we have batch features in the shell.
> > 
> > I wonder if this will be like painting the Golden Gate Bridge - if you
> > start with the 5.7 release, by the time all the packages are built, 5.8
> > will be out :-)
> 
> 

Reply via email to