yum-presto not on by default

[Warren Togami]

On 09/23/2009 07:17 PM, Bill Nottingham wrote:
> Andre Robatino (andre at bwh.harvard.edu) said:
>> If I understand correctly what the problem is - that successfully
>> xz-uncompressing a file requires being on the same endian arch as the
>> one it was compressed on - that's just wrong.  It shouldn't be
>> platform-dependent at all.
>
> That is not the issue. There are two issues:
>
> - Compressing a file on different arches, while it produces output
> that any arch can decompress, does produce *different* output.
> - Compression of xz is not fast.
>
> Bill
>

man xz
"When compressing, xz automatically adjusts the compression settings 
downwards if the memory usage limit would be exceeded, so it is safe to 
specify a high preset level even on systems that don’t have lots of RAM."

I hope we turned off this "feature" in rpm's use of xz as well.

Warren