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[Qemu-devel] [Bug 1458239] Re: Use qed instead of qcow2 for "-snapshot"

From: Michael Tokarev
Subject: [Qemu-devel] [Bug 1458239] Re: Use qed instead of qcow2 for "-snapshot" functionality
Date: Sun, 24 May 2015 07:26:13 -0000

I'm not sure I follow, why qed is better?  qed was an example/testing
format in an attempt to make qcow2 faster.  It succeeded in its task,
and qcow2 has been improved a lot after playing with qed. What's wrong
with qcow2 and why it is faster? How about providing some benchmarks?

** Changed in: qemu
       Status: New => Invalid

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  Use qed instead of qcow2 for "-snapshot" functionality

Status in QEMU:

Bug description:
  AFAIK, qed is better in performance  than qcow2, so why we still use
  qcow2 for internal snapshots ? patch is trivial.

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