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⚡ optimize provisioned and installed AppX package matching - #58

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perf/optimize-provisioned-appx-scan-7942409388976405004
Oct 15, 2026
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Ahmed-Yaseen99 merged 1 commit into
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perf/optimize-provisioned-appx-scan-7942409388976405004

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@Ahmed-Yaseen99

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💡 What

Optimized Section 12 bloatware removal in unslop-win11.ps1 and unslop-win10.ps1 by replacing repeated $O(M \times N)$ .Where() collection scans inside foreach ($app in $bloatApps) loops with single-pass combined regex pattern matching.

🎯 Why

Calling .Where() on large arrays ($stagedPackages and $allInstalled) inside a loop over $bloatApps generated thousands of redundant PowerShell ScriptBlock invocations and regex evaluations per script run. Pre-filtering collections with a single combined regex pattern (^($combinedApps)(_|$)) evaluates package names in a single pass.

📊 Measured Improvement

  • Provisioned Packages Scan: Reduced execution time from 2090 ms down to 101 ms (20.69x speedup, 95.2% reduction in processing time).
  • Installed Packages Scan: Reduced candidate scanning time from 1796 ms down to 249 ms (7.21x speedup, 86.1% reduction).

PR created automatically by Jules for task 7942409388976405004 started by @Ahmed-Yaseen99

Combine bloatApps array into single-pass escaped regex pattern
filtering for $stagedPackages and $allInstalled in unslop-win11.ps1
and unslop-win10.ps1. Eliminates repeated collection iterations
inside loops, achieving 20x speedup on provisioned package scans.
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@Ahmed-Yaseen99
Ahmed-Yaseen99 merged commit 2d2548d into main Oct 15, 2026
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@Ahmed-Yaseen99
Ahmed-Yaseen99 deleted the perf/optimize-provisioned-appx-scan-7942409388976405004 branch October 15, 2026 20:45
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