On 5/20/25 19:26, Eric Blake wrote:
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On Tue, May 13, 2025 at 03:32:37AM +0200, Andrey Zhadchenko wrote:
HBitmaps allow us to search set bits pretty fast. On
On Tue, May 13, 2025 at 03:32:37AM +0200, Andrey Zhadchenko wrote:
> HBitmaps allow us to search set bits pretty fast. On the contrary,
> when searching zeroes, we may be forced to fully traverse the lower
> level.
> When we run blockdev-backup with mode=full on top of snapshot filter
> + cbw filte
HBitmaps allow us to search set bits pretty fast. On the contrary,
when searching zeroes, we may be forced to fully traverse the lower
level.
When we run blockdev-backup with mode=full on top of snapshot filter
+ cbw filter, the job fills copy bitmap by calling block_status()
with range (X, virtual