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ZipArchive.RemoveEntry slow when removing in bulk #403

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opened 2026-01-29 22:11:19 +00:00 by claunia · 2 comments
claunia commented 2026-01-29 22:11:19 +00:00
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Originally created by @DigVolSoft on GitHub (Jun 22, 2020).

Nice library, thanks.

I've found that ZipArchive.RemoveEntry is slow when removing many entries (e.g. 1,000 in an archive of 60,000). It starts off ok but slows down to 1 file per second fairly quickly.

Could this be an issue of re-building between each removal, similar to https://github.com/adamhathcock/sharpcompress/pull/485
?

thanks

Originally created by @DigVolSoft on GitHub (Jun 22, 2020). Nice library, thanks. I've found that ZipArchive.RemoveEntry is slow when removing many entries (e.g. 1,000 in an archive of 60,000). It starts off ok but slows down to 1 file per second fairly quickly. Could this be an issue of re-building between each removal, similar to https://github.com/adamhathcock/sharpcompress/pull/485 ? thanks
claunia commented 2026-01-29 22:11:20 +00:00
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@adamhathcock commented on GitHub (Jun 22, 2020):

Probably. Did you use the method in your code?

@adamhathcock commented on GitHub (Jun 22, 2020): Probably. Did you use the method in your code?
claunia commented 2026-01-29 22:11:20 +00:00
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@DigVolSoft commented on GitHub (Jun 22, 2020):

Not in anything final - just currently experimenting with the library as it has nice support for multiple formats.

@DigVolSoft commented on GitHub (Jun 22, 2020): Not in anything final - just currently experimenting with the library as it has nice support for multiple formats.
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Reference: starred/sharpcompress#403
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