libguestfs boots in 5 seconds, now using virtio-serial

We always wanted the libguestfs appliance to boot in 5 seconds, and today after about a week of tweaking and optimization, we made that happen. On relatively old hardware too …

  real	  0m4.954s
  user	  0m2.117s
  sys	  0m1.739s

The patches are not upstream yet, but we hope to have the required changes in Fedora 14 by the time it comes out.

Another optimization that we made was to switch to using virtio-serial for communications. This is considerably faster than the current qemu user-net-based communication channel.

2 Comments

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2 responses to “libguestfs boots in 5 seconds, now using virtio-serial

  1. Pingback: Another libguestfs on Fedora 13 time « Richard WM Jones

  2. Pingback: Communication between Guests and Hosts | Think. Debate. Innovate.

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