RE: [PATCH v2 1/1] upload-pack.c: increase output buffer size

> On Wed, Dec 15, 2021 at 9:38 PM <rsbecker@nexbridge.com> wrote:
> >
> > The maximum I/O size on the platform is 56Kb. Anything larger will fail.
> That's why we use xread and xwrite for non-buffered I/O.
> 
> That sounds like it's orthogonal to what this patch is changing.
> Regardless of this patch, the actual writes are performed by write_or_die,
> which calls write_in_full. In turn, write_in_full calls xwrite however often is
> necessary. We are not making any assumptions anywhere about how large
> individual write syscalls turn out. Git packets use userspace buffers so we can
> read and write them no matter what the underlying IO sizes are.