ot

43 ms·

571.
by ot 10y ago
I didn't mean "amateurish" in a judgmental way, it's a matter of fact that the author is a novice when it comes to hash tables. He himself admits that he doesn't understand some of the details ("Why do prime nu
572.
by ot 10y ago
The author seems to ignore that GCC's implementation of std::hash is the identity on integral types: https://github.com/gcc-mirror/gcc/blob/cf8c140a8b8131b3ab4f5... This is an incredibly poor design ch
573.
Uber blocks anonymous chat app called Blind(businessinsider.com)
2 points by ot 10y ago|0 comments
574.
Dole Food Had Too Many Shares(bloomberg.com)
418 points by ot 10y ago|171 comments
575.
by ot 10y ago
No, you're confusing "undefined" with "unprovable". There are several "safe" languages where every well-formed program has well-defined semantics (for example, most interpreted languages). Undefined behavi
576.
So you want to reform democracy(medium.com)
2 points by ot 10y ago|0 comments
577.
by ot 10y ago
In the Google SRE book they say that if a service has reliability much better than the stated SLO they artificially introduce errors to get closer to the error budget. This is to prevent over-reliance on the measured SLO rather than the sta
578.
by ot 10y ago
Oh yeah good point, I had forgotten that Presto does not support realtime. About optimizations, I don't know the details, but for one, Scuba is C++ and Presto is Java.
579.
by ot 10y ago
Scuba is a complete system of log collection, storage and retrieval, and UI/visualization. Presto would only cover the storage/retrival part. Scuba has its own backend for that which is very optimized for the kind of queries the U
580.
by ot 10y ago
Exactly. And yes, a "sufficiently smart compiler" [1] could have discovered the optimization, the old and new methods are semantically equivalent. It would be interesting to test a superoptimizer on this, but I suspect it wouldn&#
581.
by ot 10y ago
You should check out how SSO (small string optimization) is implemented. size_t is actually the natural choice, because it is shared with the capacity (or with part of the string in the small case).
582.
by ot 10y ago
Another (obvious) optimization is to make functions that have to be inline smaller. For example, std::string is used ubiquitously in C++ programs; this change shaved a few MBs of .text from a bunch of large services at FB: https:/&#
583.
The tech of PIXAR part 1: Piper – daring to be different(fxguide.com)
1 points by ot 10y ago|0 comments
584.
by ot 10y ago
Samsung alone is responsible for about 20% of Korean GDP. This article is from 2012, but I don't expect it to have changed much: http://www.theatlantic.com/business/archive/2012/07/whoa-sam...
585.
by ot 10y ago
Yes, that's what I meant, futures for control flow.
586.
by ot 10y ago
And with coroutines, futures are useless again :)
587.
by ot 10y ago
The lack of generalized lambda capture was one of the biggest idiosyncrasies of C++11, given its focus on move semantics.
588.
Event-driven investing, inflection points and how I made 33x my money in 2 weeks(medium.com)
9 points by ot 10y ago|0 comments
589.
by ot 10y ago
This is a great introduction to analytic number theory. I was expecting the standard dumbed down piece with no mathematical insight and far-fetched analogies. Instead, the post is mathematically rigorous and deep, and yet it manages to be c
590.
by ot 10y ago
I'm not particularly concerned about the standard library, but about the more dynamic features of the language. Not just exec/eval, but for example the complex dispatching logic behind magic methods, especially the various __getat
591.
by ot 10y ago
There's no mention of whether Grumpy passes the CPython test suite. Until it doesn't, it's not a Python runtime, it's a compiler for a language with Python-like syntax. Compilers like this, from almost-Python to say C&#x
592.
by ot 10y ago
The objective of the authors is to efficiently exploit multi-core parallelism. PyPy still has a GIL. They have been doing some experiments with transactional memory, but performance is quite bad.
593.
Omnisearch Index Formats – Twitter Blogs(blog.twitter.com)
3 points by ot 10y ago|0 comments
594.
Google sued over policies 'barring employees from writing novels'(theguardian.com)
2 points by ot 10y ago|0 comments
595.
by ot 10y ago
This comment should be the top-voted comment, so that next time I land on this story I'll remember why it had so many upvotes.
596.
An Open Source Toolkit for Lightweight Multilingual Entity Linking(yahooresearch.tumblr.com)
2 points by ot 10y ago|0 comments
597.
Decoding the Thought Vector(gabgoh.github.io)
7 points by ot 10y ago|0 comments
598.
by ot 10y ago
The advertising industry is very good at advertising the advertising industry
599.
Saidie/redis-wavelettree(github.com)
1 points by ot 10y ago|0 comments
600.
by ot 10y ago
Yeah, double-braces was also my first guess but found out that Clang and GCC handled it differently (!) so I didn't even try to understand what the std mandates. [hey! :)]

More ›