Looking through old bug tickets... have this issue been fixed, i.e.
could we close this ticket nowadays? Or is there still something left to
do?
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1126369
Title:
qemu-img snapshot -c is unreasonably slow
Status in QEMU:
Incomplete
Bug description:
Something fishy is going on with qcow2 internal snapshot creation
times. I don't know if this is a regression because I haven't used
internal snapshots in the past.
QEMU 1.4-rc2:
$ qemu-img create -f qcow2 test.qcow2 -o size=50G,preallocation=metadata
$ time qemu-img snapshot -c new test.qcow2
real 3m39.147s
user 0m10.748s
sys 0m26.165s
(This is on an SSD)
I expect snapshot creation to take under 1 second.
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