| commit | 7ce51f1b8157a2aa6bd3945bba9904442d3c3cdd | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Mon, 8 Apr 2013 11:29:55 +0000 (8 13:29 +0200) | ||
| committer | Juan Quintela <quintela@redhat.com> | |
| Tue, 9 Apr 2013 13:00:13 +0000 (9 15:00 +0200) | ||
| tree | 6c13c0a135b4c917c75f13365221fe4dd87c3edd | treesnapshot (tar.gz zip) |
| parent | af74db72d33e4776d7d1430b57d0bf065a6f03df | commitdiff |
migration: use a single I/O operation when writev_buffer is not defined
The recent patches to use vectored I/O for RAM migration caused a
regression in savevm speed. To restore previous performance,
add data to the buffer in qemu_put_buffer_async whenever writev_buffer
is not available in the QEMUFile.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
The recent patches to use vectored I/O for RAM migration caused a
regression in savevm speed. To restore previous performance,
add data to the buffer in qemu_put_buffer_async whenever writev_buffer
is not available in the QEMUFile.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
| savevm.c | diffblobblamehistory |