| commit | f8e378f27f2a8b99bf9be0a9168ba0ea19eeb740 | [log] [tgz] |
|---|---|---|
| author | Avi Kivity <avi@redhat.com> | Mon Jun 20 11:12:47 2011 +0300 |
| committer | Anthony Liguori <aliguori@us.ibm.com> | Wed Jun 22 07:18:38 2011 -0500 |
| tree | bdc5f4192241afbcc17f931557529d6e18e17a77 | |
| parent | 9319a6d3a6af9ae85556261e4a759eaddb49d734 [diff] |
Optimize screendump When running kvm-autotest, fputc() is often the second highest (sometimes #1) function showing up in a profile. This is due to fputc() locking the file for every byte written. Optimize by buffering a line's worth of pixels and writing that out in a single call. Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>