On 7/5/19 12:43 PM, Kamil Rytarowski wrote: > On 05.07.2019 12:24, Alex Bennée wrote: >> >> Gerd Hoffmann <[email protected]> writes: >> >>> Instead of fetching the prebuilt image from patchew download the install >>> iso and prepare the image locally. Install to disk, using the serial >>> console. Create qemu user, configure ssh login. Install packages >>> needed for qemu builds. >> >> I've had to drop this from my v3 PR as Peter was seeing a very >> slow/hanging install when running his merge tests. I've tried to >> reproduce and I see it stall while installing packages but nowhere near >> the delay Peter has seen. >> >> Any pointers on how to debug gratefully received. >> > > Does it use virtio? There were performance issues with virio disk device.
Yes, virtio-blk, you can see how the VM is started looking at tests/vm/basevm.py: "-drive", "file=%s,if=none,id=%s,cache=writeback,format=raw" % (tarfile, name), "-device", "virtio-blk,drive=%s,serial=%s,bootindex=1" % (name, name)
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