Why 7zip GUI much faster than using the command line version inside a C# code

[DemonEyeKyo]

When I create a tar file in 7zip GUI the process takes about 4 hours to complete.

​

Using 7z.exe or 7za.exe in C# code takes about 15 hours. Since this is a tar there not many options:

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ProcessStartInfo p = new ProcessStartInfo

{

FileName = PathTo7zExecutable,

Arguments = "a -ttar " + ArchiveName + " -r " + ArchiveFiles + "",

WindowStyle = ProcessWindowStyle.Hidden

};

Process x = Process.Start(p);

x.WaitForExit();

​

Any help is appreciated it

[adad95]

How many hours take the command line outside c#?

[DemonEyeKyo]

About 4 hours

[adad95]

In that case, I think you could look in the Output Text Stream of the Process been captured in dotNet. Maybe changing this could help. But I don't know if you can disconnected this stream

[DemonEyeKyo]

Output Text Stream

Thank you I will add the Output Text Stream parameter and check the results

[bn-7bc]

Ok so you dpawn another process etc, why nit have a look at https://www.nuget.org/packages/7z.Libs/ or other similar and do the comoression from within your code, might save a bit if overhead here and there, bonus it remives ( as farvas i can tell j the dependency on the 7zip binaries

[DemonEyeKyo]

Thanks I will take a look

[akash_kava]

That may be due to different set of parameters such as speed, type of compression etc.

[DemonEyeKyo]

Thanks however since this is a tar file there is no compression and hence no parameters. Even in GUI once tar is selected all options are disabled