Technical Guide

Our -E Nearly Doubled the Time; ripgrep’s Didn’t — Part 4: Extracting Required Literals Took 50 GB -E From 13.68 s to 7.75 s

Only the regex path was slow. Same 50 GB file, same tool, same disk. The only difference is whether -E is on t…
2026.09.25
Technical Guide
Technical Guide

Our CLI Gave Three Different Counts Where ripgrep Gave One — Part 5: No Default Cap, and grep’s Exit Codes for “Incomplete”

The count changed every time. Same file, same command, same machine. Three runs in a row: 356,940 hits, then 3…
2026.09.25
Technical Guide
Technical Guide

We Threw the CLI’s Results Away and Read 50 GB Twice — Part 6: One Temp File Cut End-to-End to 50.76 s (klogg: 108.14 s)

We were throwing the results away. Search a 50 GB file from the command line, then open the hits in the GUI. C…
2026.09.25
Technical Guide
Technical

Compressed logs are faster to search — seven formats measured at 1 GB and 3 GB

[Update, 16 October 2026] Speed today — re-measured with v1.9.0 "Full Spectrum" The uvf and uvp numbers in thi…
2026.09.25
Technical
Technical Guide

Our -i Was 4.3x Slower Than ripgrep — Part 3: Folding Case in Raw Bytes, With Exactly One Exception (2.72 s to 0.66 s)

Adding -i made it four times slower. Same file, same word. The only difference is whether case is ignored — an…
2026.09.24
Technical Guide
Technical Guide

We Made Our CLI as Fast as ripgrep on 50 GB — Part 2: Folding 2.5 Passes Into One (203 s to 50.82 s)

203 seconds became 50.82. We did not rewrite the hot loop, and we did not parallelise anything. The only thing…
2026.09.23
Technical Guide
Technical Guide

Our CLI Was 3.7x Slower Than ripgrep on a 50 GB File — Part 1: Measuring Where the 205 Seconds Went

205 seconds, to search 50 GB. "This is not a speed tool. If you have ripgrep, use ripgrep." We wrote that ours…
2026.09.22
Technical Guide
Technical

uvp’s First Question Got 6.7 s Faster — It No Longer Builds First and Searches Again (UwView Pro v1.6.6.1)

"The first question is about 20% slower than ripgrep" — that is what I was going to write. uvp, the UwView Pro…
2026.09.21
Technical
Technical

The Free uvf Holds Its Own Against Both ripgrep and klogg. uvp Earns Its Keep at the Second Question — One 51 GB File, Three Arenas

We spent three months measuring one 51.25 GB file on the same machines. The answer that came out was simpler t…
2026.09.21
Technical
Technical

We Lose to klogg on Opening. uvf Wins the Whole Run — Re-measured at 50 GB

If all you do is open a 51 GB file, klogg is faster. 52.55 s against 100.6 s. That one we lose. [Added 2026-09…
2026.09.20
Technical
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