[PATCH] find-debuginfo: Use 64k buffers to extract ar members with dd
Mark Wielaard
mark@klomp.org
Mon Jan 19 16:56:16 GMT 2026
Hi,
On Wed, 2026-01-14 at 00:25 +0100, Mark Wielaard wrote:
> If the dd implemention support the skip_bytes and count_bytes iflags
> then use them with a blocksize of 64k. skip_bytes will use bytes to
> skip and count_bytes will use bytes for count. Otherwise we have to
> use bs=1 because skip and count would be interpreted as the number of
> blocks (to skip or copy). Using a blocksize of 64k will speed up dd
> processing. Also allow much more members to be extracted if we have a
> fast dd.
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=33771
This was backported to fedora rawhide for the mass rebuild and seems to
have worked as expected (much faster ar member processing).
Pushed,
Mark
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