| commit | 276cbc7f2fc1bd3810887995dbc9cbb739c975bf | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Wed, 4 Sep 2013 17:00:18 +0000 (4 19:00 +0200) | ||
| committer | Stefan Hajnoczi <stefanha@redhat.com> | |
| Fri, 6 Sep 2013 13:25:08 +0000 (6 15:25 +0200) | ||
| tree | 1c6cbb1d11063a1e53f1047e4d01d9ec27f993de | treesnapshot (tar.gz zip) |
| parent | 0ca0b0d5f8a87dbc6daa5095771d036d0e6dc5b4 | commitdiff |
cow: make reads go at a decent speed
Do not do two reads for each sector; load each sector of the bitmap
and use bitmap operations to process it.
Writes are still dog slow!
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Do not do two reads for each sector; load each sector of the bitmap
and use bitmap operations to process it.
Writes are still dog slow!
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| block/cow.c | diffblobblamehistory |