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wmu

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Accelerated SQL for JSON with AVX512 (Golang)

github.com
19 points·by wmu·4 yıl önce·9 comments

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wmu
·22 gün önce·discuss
That's a very important point. For instance on Intel's CPUs multiplication is pipelined - its latency is 3 cycles, but throughput is 1 cycle. Thus completing N multiplication takes 2 + N cycles (in the best case), not 3 * N.
wmu
·4 yıl önce·discuss
Disclaimer: I'm one of the authors of sneller core. We have been working on this project for more than a year. It's has got neat AVX512-centered architecture and many neat tricks inside.
wmu
·4 yıl önce·discuss
There are many scary things in the world. But the scariest is the line "Hi, I have a quick question". :)
wmu
·5 yıl önce·discuss
It was already said by the author, that approx ~70% of patches can be applied independently in various part of the source tree. The rest has to be synchronised.
wmu
·5 yıl önce·discuss
DuckDuckGo is also not good. Last week I switched to Bing and its results are surprisingly good.
wmu
·5 yıl önce·discuss
- It looks like a virus... - But it's the antivirus!

:)
wmu
·5 yıl önce·discuss
Thanks, that's a really elegant approach.
wmu
·5 yıl önce·discuss
Author here. I cannot use BSR, because have to execute code for all bits, regardless their value. The range is: the last bit to the first with value 1. It's a non-obvious iteration schema. :)
wmu
·5 yıl önce·discuss
> In continental Europe I have often been in a room with people from 10 different countries say Germany, France, Italy, Russia, Poland, India, China, Korea, England. Everyone could understand each other's broken English with the exception that half of the people couldn't understand English guy.

The problem is that most people are not exposed to real-life English. It's either quite artificial language during classes or well spoken lines in movies. Words are spoken slower and clearer. Native speakers speak fast, use linking, colloquial language, multitude of idioms, phrasal verbs, and tons of stuff never ever touched during classes.
wmu
·5 yıl önce·discuss
I use my own, simple CLI tool* (not only to track working hours, but also to track open source or hobby activiets). For many years I used Toggl, which is great and powerful - I just needed something that works offline.

[*] https://github.com/WojciechMula/timetracker