So, I was a lot closer to having this “mostly” working than I thought. After some trial and error with 7zips command line arguments I got a few good test runs in. I need to work with some different data to further confirm, but so far, it seems that 7zip is pure win!
See the text results below:
Starting WinZip…
WinZip finished… reporting…
Start Ticks: 633616615839494087
End ticks: 633616615845744327
Time to completion (ticks): 6250240
Time to completion (ms): 625.024
Starting 7Zip…
7Zip finished… reporting…
Start Ticks: 633616615846681863
End ticks: 633616615859338599
Time to completion (ticks): 12656736
Time to completion (ms): 1265.6736
Press esc or enter key too continue…
Starting 7Zip…
7Zip finished… reporting…
Start Ticks: 633616617982545127
End ticks: 633616618061454407
Time to completion (ticks): 78909280
Time to completion (ms): 7890.928
a 7zip with max compression?
Starting 7Zip…
7Zip finished… reporting…
Start Ticks: 633616621970019726
End ticks: 633616622006270886
Time to completion (ticks): 36251160
Time to completion (ms): 3625.116

7zip is definitely win. In compressed archives with a lot files (1000′s), I’ve had 7zip decompress at least twice as fast as WinZip, with almost the exact some compression percentage.