[pacman-dev] [PATCH] pkgdelta: Use high compression options offered by xdelta3

[Allan McRae]

On 31/12/14 03:08, Mohammad_AlSaleh wrote:
> On Wed, Dec 31, 2014 at 01:59:51AM +1000, Allan McRae wrote:
>> On 31/12/14 01:14, Mohammad Alsaleh wrote:
>>>  * Add -9 which is the highest compression level.
>>>  * Use lzma for secondary compression.
>>
>> I believe I said a patch adding '-9 -S djw' would be accepted in the
>> last discussion of this.
>>
>> How does lzma for secondary compression compare to djw in terms of
>> memory footprint and speed?
>>
> 
> Using an aging Laptop (Core 2 Due).
> Time is the samllest in 4 runs.
> 
> inkscape:
> 05.765s    139.50MiB    default
> 09.748s    235.02MiB    -9 -S djw
> 09.315s    242.86MiB    -9 -S lzma
> 
> clang:
> 15.492s    140.46MiB    default
> 36.503s    236.11MiB    -9 -S djw
> 39.293s    243.68MiB    -9 -S lzma

Thanks - difference is negligible so I will pull your patch.

Allan