Thread replies: 12
Thread images: 2
Thread images: 2
>compress 5 folders with 7zip normal settings
>compress the 5 7zip archives with 7zip normal settings
>new archive is 50% smaller
is 7zip normal setting absolute trash or what, how the hell can it be half the size by doing the compression twice?
>>
does it take twice as long to unzip?
>>
Second time around you also compressed the file names of the folders, trading away the ability to see them without decompressing.
>>
What happens if you compress the third time?
>>
How big is it if you compress the 5 original folders directly into 1 archive?
>>
>>61672860
It largely depends on the entropy of your files. I've compressed SQL DB backups to 2% of their original size on normal.
>>
>>61673630
DELET THIS
>>
File: [screams in Todd].jpg (5KB, 296x300px) Image search:
[Google]
![[screams in Todd].jpg](https://i.imgur.com/Cgk9H78.jpg "[screams in Todd]")
5KB, 296x300px
>>61673630
>>
>>61673630
1KB larger
>>61673656
300KB smaller than the dual compressed archive.
>>
>>61673630
Genuinely would like to know.
>>
>>61672860
>normal settings
Try with best settings
>>
>>61672860
>used double the cpu time
>file is compressed to a half of the original size
really makes me think
Thread posts: 12
Thread images: 2
Thread images: 2