Really bad performance.

I’m using this code.

It takes like 10 minutes to extract 272 files from a 7-zip archive that is not special by any means. Well, it’s been compressed using the Ultra setting… 😃

I has some of them that are about 80MB in size.

What could be wrong?

Thanks!!

public class DriverPackageInstaller : IDriverPackageInstaller
    {
        public async Task InstallDriverPackage(string fileName, string destination)
        {
            using (var package = SevenZipArchive.Open(fileName))
            {
                await Extract(package.Entries, "Cityman", @"NewPack\Pre-OOBE");
                await Extract(package.Entries, "PostOOBE", @"NewPack\Post-OOBE");
            }
        }

        public static async Task Extract(ICollection<SevenZipArchiveEntry> entries, string sourceFolder, string destinationFolder)
        {
            var translatedPath = sourceFolder.Replace("\\", "/");

            foreach (var entry in entries.Where(x => x.Key.StartsWith(translatedPath) && !x.IsDirectory))
            {
                await ExtractEntryToFile(entry, sourceFolder, destinationFolder);
            }
        }

        private static async Task ExtractEntryToFile(IArchiveEntry entry, string sourceFolder, string destination)
        {
            using (var input = entry.OpenEntryStream())
            {
                var path = entry.Key.Replace($"{sourceFolder}/", "");
                var fileName = Path.GetFileName(path);
                var directoryName = Path.GetDirectoryName(path);
                var newFolder = Path.Combine(destination, directoryName);
                var outputPath = Path.Combine(newFolder, fileName);

                Directory.CreateDirectory(newFolder);
                using (var output = File.OpenWrite(outputPath))
                {
                    await input.CopyToAsync(output);
                }                
            }
        }
    }

[Erior]

@androschuk , try use var reader = archive.ExtractAllEntries(); while (reader.MoveToNextEntry()) { if (!reader.Entry.IsDirectory) { // Do something } }

[adamhathcock]

https://www.nuget.org/packages/sharpcompress/0.22.0