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y4u

Building UwView — a viewer for huge logs & text files, tested with a 258 GB / 4.5-billion-line real-world file. 40 years in CAD/GIS. Windows95-era tool, rebuilt in C#/Avalonia.

Location oita,japan Joined Joined on  Personal website https://uvp.y42u.net/en/pro-en/ github website

Education

Electronics / radio engineering

Work

Independent developer (40+ yrs). Building UwView & geospatial/surveying apps.

How to Open a 50GB Log File — and Reopen It in 0.05 Seconds. A klogg Alternative, Benchmarked
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y4u

How to Open a 50GB Log File — and Reopen It in 0.05 Seconds. A klogg Alternative, Benchmarked

#showdev #performance #productivity #linux
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6 min read
[In Development] Editing a 48GB File and Saving Mid-Way: EmEditor vs UwEditor Pro
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y4u

[In Development] Editing a 48GB File and Saving Mid-Way: EmEditor vs UwEditor Pro

#showdev #performance #productivity #windows
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8 min read
[In Development] I Replaced 21,994 Occurrences in a 10GB, 100-Million-Line File in 16.8 Seconds
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y4u

[In Development] I Replaced 21,994 Occurrences in a 10GB, 100-Million-Line File in 16.8 Seconds

#showdev #performance #productivity #tooling
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5 min read
Find Only Where 'New York Central Park coffee_shop' Appear in That Order — Sequence Search on a 258 GB Local File
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y4u

Find Only Where 'New York Central Park coffee_shop' Appear in That Order — Sequence Search on a 258 GB Local File

#showdev #security #logging #tools
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3 min read
From 100,492 Hits to 3 in Two Clicks — Drill-down Search for Huge Local Files
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y4u

From 100,492 Hits to 3 in Two Clicks — Drill-down Search for Huge Local Files

#showdev #devops #grep #tools
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3 min read
I Benchmarked My Free Viewer Against EmEditor and klogg — Honestly
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y4u

I Benchmarked My Free Viewer Against EmEditor and klogg — Honestly

#showdev #benchmark #opensource #performance
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2 min read
You Found the ERROR. The Cause Is in the Lines Before It
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y4u

You Found the ERROR. The Cause Is in the Lines Before It

#debugging #devops #logging #tools
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3 min read
"File Too Large to Open" — Investigating a 50 GB Log Without Splitting It
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y4u

"File Too Large to Open" — Investigating a 50 GB Log Without Splitting It

#devops #debugging #productivity #tools
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2 min read
My Fanless Mac Skewed My Benchmark by 54% — Thermal Throttling and Round-Robin Measurement
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y4u

My Fanless Mac Skewed My Benchmark by 54% — Thermal Throttling and Round-Robin Measurement

#hardware #performance #programming
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3 min read
How Many Search Threads Is the Right Number? I Measured 0.89 Billion Lines at 1-16 Threads
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y4u

How Many Search Threads Is the Right Number? I Measured 0.89 Billion Lines at 1-16 Threads

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3 min read
Reading Huge Logs by Color — a Highlighter That Doesn't Stutter at 100 Million Lines
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y4u

Reading Huge Logs by Color — a Highlighter That Doesn't Stutter at 100 Million Lines

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4 min read
I Rebuilt My 30-Year-Old Text Viewer in C#/Avalonia — It Matched the Industry-Standard klogg. Then I Redesigned It for Today's Hardware.
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y4u

I Rebuilt My 30-Year-Old Text Viewer in C#/Avalonia — It Matched the Industry-Standard klogg. Then I Redesigned It for Today's Hardware.

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6 min read
Shelve an Investigated Log at 1/9th the Size, Reopen It Tomorrow Right Where You Left Off
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y4u

Shelve an Investigated Log at 1/9th the Size, Reopen It Tomorrow Right Where You Left Off

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4 min read
I Expanded the Entire US OpenStreetMap to a Single 258 GB XML File — 4,509,830,821 Lines, and What Broke
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y4u

I Expanded the Entire US OpenStreetMap to a Single 258 GB XML File — 4,509,830,821 Lines, and What Broke

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5 min read
Why We Split Search Results Into a Separate Window — Jump, Save, and Context Lines You Can Use \"While Looking\" With the Filter Popup
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y4u

Why We Split Search Results Into a Separate Window — Jump, Save, and Context Lines You Can Use \"While Looking\" With the Filter Popup

#showdev #avalonia #uwview #syslog
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4 min read
How much slower is the browser build, really? — UwView native (UVF) vs WASM, measured on the same file
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y4u

How much slower is the browser build, really? — UwView native (UVF) vs WASM, measured on the same file

#showdev #webassembly #browser #uwview
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3 min read
I Opened 51GB / 890M Lines of Real Data — Then Calculated How Far It Could Theoretically Go (~9.2 Quintillion Lines)
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y4u

I Opened 51GB / 890M Lines of Real Data — Then Calculated How Far It Could Theoretically Go (~9.2 Quintillion Lines)

#showdev #performance #opensource #uwview
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8 min read
An honest comparison with klogg [v1.1.1]: I list every row I'm losing on, too
amru195704 profile
y4u

An honest comparison with klogg [v1.1.1]: I list every row I'm losing on, too

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5 min read
I benchmarked my log viewer against klogg at 3/10/48 GB — the second open is the real win
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y4u

I benchmarked my log viewer against klogg at 3/10/48 GB — the second open is the real win

#showdev #performance #dotnet #devops
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4 min read
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