nazri1
Joined 16 years ago
Karma
1,332
Submissions
91
Member since
Dec 13
https://github.com/holygeek/
View on Hacker NewsRecent submissions
Comment · 3 years ago
I have given up on all hope of UI/UX getting better on general consumer devices. The downward trend started since smartphone became mainstream.
Comment · 3 years ago
I know I’m going to miss reading his goofy email signatures.
Rest in peace Bram.
Comment · 5 years ago
Use mutt! Now you can read each post as if it was part of an email thread. But first you have to get the comments saved as a maildir email conversations... that’s where my fetchpost[1] tool comes in. Demo: https://asciinema.org/a/593u87rrsa3mevktyekepm4ke
Comment · 7 years ago
time_ns = t[1].tv_nsec - t[0].tv_nsec + 1000000 * (t[1].tv_sec - t[0].tv_sec);
^^^^^^^ should be 1E9 insteadComment · 7 years ago
I feel you. https://xkcd.com/1172/
Comment · 7 years ago
You can use numfmt to parse the number:
$ seq -w 0001 0005|numfmt
1
2
3
4
5
$ seq -w 0001 0005|sed 's/^0*//'
1
2
3
4
5Comment · 7 years ago
Ha I could say the same thing about my $EDITOR, which happens to be vim. I learned how to use it about 2 decades ago and I still use it almost daily since. Some things are really worth investing your time learning them.
Comment · 7 years ago
Blank space at the bottom - just so when you page down through the page and reach the end, the last readable content would correctly shift up the same amount as the previous shift.
Comment · 7 years ago
I used the default one in CmakeLists.txt (-O3).
I ran the comparison again on another machine that I have and this time their performances are about the same:
c++:
$ time ./tinykaboom
./tinykaboom 46.72s user 0.01s system 364% cpu 12.804 total
$ time ./tinykaboom
./tinykaboom 42.50s user 0.07s system 350% cpu 12.161 totalComment · 7 years ago
I saw the openmp pragma and thought to myself "neat! should be fun to watch the cores work hard at this" and went ahead and compiled and run it and smiled at the 400% cpu usage in top.
$ time ./tinykaboom
./tinykaboom 78.08s user 0.02s system 369% cpu 21.159 total
$ go build ./tinykaboom.go
$ time ./tinykaboom
./tinykaboom 34.32s user 0.03s system 368% cpu 9.315 total
Here's the corresponding perf report:
Go:
Samples: 103K of event 'cycles:pp', Event count (approx.): 37252033995665
Overhead Command Shared Object Symbol
32.17% tinykaboom tinykaboom [.] math.sin
28.80% tinykaboom tinykaboom [.] main.hash
11.81% tinykaboom tinykaboom [.] main.rotate
7.76% tinykaboom tinykaboom [.] math.Min
5.18% tinykaboom tinykaboom [.] main.lerpFloat64
4.25% tinykaboom tinykaboom [.] main.noise
2.59% tinykaboom tinykaboom [.] runtime.mallocgc
2.59% tinykaboom tinykaboom [.] main.fractal_brownian_motion
2.58% tinykaboom tinykaboom [.] main.signed_distance
Samples: 234K of event 'cycles:pp', Event count (approx.): 86721459552303
Overhead Command Shared Object Symbol
67.93% tinykaboom libm-2.23.so [.] __sin_avx
30.80% tinykaboom tinykaboom [.] _Z5noiseRK3vecILm3EfE
1.27% tinykaboom libm-2.23.so [.] __floorf_sse41
0.00% tinykaboom tinykaboom [.] _Z23fractal_brownian_motionRK3vecILm3EfE
0.00% tinykaboom tinykaboom [.] floorf@plt
Comment · 8 years ago
(shameless plug) git number: https://github.com/holygeek/git-number
Use numbers for dealing with files in git.