Top all-time · #11378
jlebar
Personal blog · jlebar.comprogrammingsystems
jlebar is a personal blog at jlebar.com about programming and systems. Since 2012, 6 different Hacker News readers have linked it 14 times, most often “GNU grep is 10x faster than Mac grep”. It is still writing: the last post was on 2026-05-27, and you can follow it by feed.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
The linked post covers performance differences between GNU grep and the BSD grep shipped with macOS, with the claim that GNU grep is about 10x faster. A commenter cites it while suggesting the Homebrew GNU version for large files.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Most-linked posts?
- GNU grep is 10x faster than Mac grep3 people · 3 mentions · first linked 2012-11-28
- A Practical Introduction to C++11 Rvalue References2 people · 3 mentions · first linked 2016-06-10
What Hacker News says?
Not claiming it's easy, but see http://jlebar.com/2016/5/28/A_Practical_Introduction_to_C%2B...
Comment linking /2016/5/28/A_Practical_Introduction_to_C%2B%2B11_Rvalue_References.html
on “C++20 Design Is Complete: Modules, Coroutines in C++20”Submitted GNU grep is 10x faster than Mac grep as a story · 122 points
HN discussionSlightly related, I only recently found out that the grep (BSD) included in macOS is way slower than the GNU equivalent that you can install from Homebrew. If you ever had to work with big files and were confused why it's so much slower give it a try. http://jlebar.com/2012/11/28/GNU_grep_is_10x_faster_than_Mac...
Comment linking /2012/11/28/GNU_grep_is_10x_faster_than_Mac_grep.html
on “Show HN: I wrote a book on GNU grep and ripgrep”Submitted Boolean parameters to API functions considered harmful (2011) as a story · 102 points
HN discussionLocation: SF Bay Area Remote: Yes, and I have 3yr experience working remotely. Willing to relocate: Unlikely, but possibly Technologies: I am a systems programmer, Google L6 tech lead and recently manager. Most recently I worked on compilers for ML, targeting CPUs and GPUs. C++, CUDA, LLVM, Python. Résumé/CV: http://jlebar.com/resume.pdf Email: In resume I am looking for a meaningful climate-change job.
Comment linking /resume.pdf
on “Ask HN: Who wants to be hired? (December 2019)”Submitted GNU grep is 10x faster than Mac grep as a story · 4 points
HN discussionShameless plug for a recent blog post of mine where I try to explain ML convolutions, https://jlebar.com/2023/9/11/convolutions.html
Comment linking /2023/9/11/convolutions.html
on “Animated AI”Submitted A Practical Introduction to C++11 Rvalue References as a story · 3 points
HN discussionShameless plug for my writeup about convolutions: https://jlebar.com/2023/9/11/convolutions.html
Comment linking /2023/9/11/convolutions.html
on “Animated AI”Submitted Skip uninteresting files and functions in gdb (2011) as a story · 3 points
HN discussionSubmitted A Practical Introduction to C++11 Rvalue References as a story · 1 points
HN discussionSubmitted Beware of renice as a story · 1 points
HN discussionSubmitted Mac OS 10.9 Browser Benchmarks as a story · 1 points
HN discussionSubmitted A ghost story as a story · 1 points
HN discussion