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Paolo Bonzini authored
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>
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