[pacman-dev] [PATCH] pkgdelta: Use high compression options offered by xdelta3
allan at archlinux.org
Wed Dec 31 03:42:09 UTC 2014
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.
> 05.765s 139.50MiB default
> 09.748s 235.02MiB -9 -S djw
> 09.315s 242.86MiB -9 -S lzma
> 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.
More information about the pacman-dev