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Re: virtual disks perfermonca <=2MB/s




On 22.02.2017 16:04, Darac Marjal wrote:
StackExchange (http://serverfault.com/questions/407842/incredibly-slow-kvm-disk-performance-qcow2-disk-files-virtio) suggests that QCOW2 may be a
factor, and to use:

$ qemu-img create -f qcow2 -o preallocation=metadata,compat=1.1,lazy_refcounts=on imageXYZ

but there's a bunch of other cargo-cult options to try, too! :D


I've read that thread. But I don't want to preallocate all space.