jvns

14 ms·

121.
How the locate command works (and let's write a faster version in one minute)(jvns.ca)
5 points by jvns 12y ago|0 comments
122.
Why might a C++ programmer say “I could never write Python”?(jvns.ca)
24 points by jvns 12y ago|14 comments
123.
Fear makes you a worse programmer(jvns.ca)
3 points by jvns 12y ago|0 comments
124.
Diving into concurrency: trying out mutexes and atomics(jvns.ca)
32 points by jvns 12y ago|3 comments
125.
How tmux starts up: An adventure with Linux tools(blog.chaselambda.com)
3 points by jvns 12y ago|0 comments
126.
Harm reduction for developers(jvns.ca)
3 points by jvns 12y ago|0 comments
127.
Fun with machine learning: logistic regression(jvns.ca)
2 points by jvns 12y ago|0 comments
128.
Taste Test(rose.github.io)
1 points by jvns 12y ago|0 comments
129.
How does SQLite work? Part 2: disk seeks are slow don't do them(jvns.ca)
58 points by jvns 12y ago|4 comments
130.
How does SQLite work? Part 1: Pages(jvns.ca)
149 points by jvns 12y ago|18 comments
131.
“You can be a kernel hacker” by Julia Evans at Strange Loop [video](youtube.com)
1 points by jvns 12y ago|0 comments
132.
How is a binary executable organized? Let’s explore it(jvns.ca)
163 points by jvns 12y ago|31 comments
133.
by jvns 12y ago
my favorite thing about writing blog posts is comments like this. Thank you! I didn't consider that the packet capture interface might do buffering. That might explain a lot of the problems I was having :)
134.
by jvns 12y ago
absolutely! Fixed :)
135.
What happens if you write a TCP stack in Python?(jvns.ca)
408 points by jvns 12y ago|120 comments
136.
Fun with stats: how big of a sample size do I need?(jvns.ca)
2 points by jvns 12y ago|0 comments
137.
Machine learning isn't Kaggle competitions(jvns.ca)
5 points by jvns 12y ago|0 comments
138.
Asking questions is a superpower(jvns.ca)
3 points by jvns 12y ago|0 comments
139.
by jvns 12y ago
This is far beyond what a computer could do. For instance, see this transcript: https://github.com/hausdorff/bangbangcon.github.io/blob/gh-p... For instance, she'll separate out conversations: >> C
140.
by jvns 12y ago
This is so great! Writing toy kernel modules on your own is a super fun way to get into kernel programming. There's no danger of anything going wrong, especially if you develop inside a VM. My partner wrote a kernel module for a talk I
141.
Diving into HDFS(jvns.ca)
2 points by jvns 12y ago|0 comments
142.
Spying on my CPU cycles with perf(jvns.ca)
2 points by jvns 12y ago|0 comments
143.
by jvns 12y ago
I profiled my program looking for TLB misses, and got 0 dTLB misses ( https://gist.github.com/jvns/a42ff6f48c659cfc4600 ).
144.
by jvns 12y ago
yeah, I tried prefetching like this: https://github.com/jvns/howcomputer/blob/master/bytesum_pref... (using MAP_POPULATE instead of hugepages) and got a slight slowdown
145.
by jvns 12y ago
Can you share the prefetching code you wrote? I tried to use __builtin_prefetch, but couldn't figure out how to make it faster.
146.
Ask HN: How can I spend $1000 of AWS credit on learning about HDFS performance?
10 points by jvns 12y ago|2 comments
147.
Don't feel guilty about not contributing to open source(jvns.ca)
21 points by jvns 12y ago|3 comments
148.
Debug your programs like they're closed source(jvns.ca)
43 points by jvns 12y ago|8 comments
149.
Writing an OS in Rust in tiny steps (Part 1)(jvns.ca)
9 points by jvns 13y ago|0 comments
150.
by jvns 13y ago
Hacker School judges everyone the same way -- they'd love to admit everyone who's friendly and excited about becoming a better programmer.

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