The following set of patches improve the qemu-img conversion process performance. When using a higher latency backend, small writes have a severe impact on the time it takes to do image conversion. We switch to using async writes, and we avoid splitting writes due to holes when the holes are small enough. Yehuda Sadeh (2): qemu-img: async write to block device when converting image qemu-img: don't skip writing small holes qemu-img.c | 34 +++++++++++++++++++++++++++------- 1 files changed, 27 insertions(+), 7 deletions(-) -- 1.7.5.1 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html