raccoonone
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2 years ago
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on: Are you sure you want to use MMAP in your DBMS?
I wrote redb (
https://github.com/cberner/redb) using mmap, initially. However, I later removed it and switched to read()/write() with my own user space cache. I'm sure it's not as good as the OS page cache, but the difference was only 1.2-1.5x performance on the benchmarks I cared about, and the cache is less than 500 lines of code.
Also, by removing mmap() I was able to remove all the unsafe code associated with it, so now redb is memory-safe.
raccoonone
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7 years ago
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on: RaptorQ and performance optimization in Rust
I ran the benchmarks with SIMD disabled. Encoding goes from ~950Mbit/s down to ~350Mbit/s
raccoonone
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8 years ago
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on: Scaling Kubernetes to 2,500 Nodes
Yep, we've been using GPUs for quite a while (even before the alpha support in Kube), both the K80s in Azure and some Pascals in our own clusters. With the support in Kube now it's quite seamless.
raccoonone
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12 years ago
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on: Ask HN: Looking for contributors?
raccoonone
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14 years ago
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on: Carsabi Opens Access To Car Data (Apparently Green Cars Are Cheaper?)
Ya, I'll add that to our list of feature requests. Would definitely like to put some more features in, to help people with blog posts or other research in the car space.
Ah yes, I would seem that green cars are going out of fashion, dunno who would want a purple car =P
raccoonone
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14 years ago
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on: Optimizing Solr (Or How To 7x Your Search Speed)
What was the reason for having hundreds of shards on each server? Were you still seeing performance benefits to sharding it that aggresively?
raccoonone
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14 years ago
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on: Optimizing Solr (Or How To 7x Your Search Speed)
Awesome, lemme know when you guys have sharding available! Would love to not have to worry about running our own index, again.
raccoonone
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14 years ago
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on: Optimizing Solr (Or How To 7x Your Search Speed)
Yep, totally agree with this. Last month we spent an hour or two going through the schema and removing any fields that didn't need to be stored, and making sure that only fields which we actually do queries on had index=true. I didn't test before and after results, but qualitatively it seemed to be faster afterwards.
raccoonone
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14 years ago
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on: Optimizing Solr (Or How To 7x Your Search Speed)
I sure am the author. email sent :)
raccoonone
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14 years ago
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on: Show HN: Flutter - Control Spotify or iTunes Using Gestures thru Webcam
Looks awesome, can't wait for a Linux version, so that I can try it out!
raccoonone
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14 years ago
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on: HireArt (YC W12) Helps employers screen job applicants through work samples
This is a great idea! I've been working with a bunch of freelancers, for some marketing work, and would like to hire someone full-time soon.
raccoonone
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14 years ago
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on: Sonalight (YC W12) Lets You Text While Driving Without Touching A Phone
Wow, this is awesome! Definitely gonna try this out next time I'm driving and texting...I mean, driving and thinking about texting! ;)
raccoonone
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14 years ago
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on: Hacking the Used Car Purchase
Well, if you used our awesome car search engine (carsabi.com), you wouldn't be spending 20hrs =P
In all seriousness though, if you spend 20hrs to save $2k, you're making $100/hr, which is better than most programmers make, even.
raccoonone
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14 years ago
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on: Show HN: Craigslist Car Search
Ah yes, looks like we need to set some kind of sensible default for the maximum price.
Would you prefer to just bookmark searches, or login and be able to "save" them? (have them show up as separate tabs next to Saved Listings, or something like that)
raccoonone
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14 years ago
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on: Show HN: Craigslist Car Search
Definitely, we'd like to add more comparison as to how good of a deal you're getting, but just haven't had time yet.
The hatchback/sedan/... is on our roadmap too. It's a little tricky, because often sellers don't post it explicitly, and doing computer vision on the pictures, would be very hard.
raccoonone
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14 years ago
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on: Show HN: Craigslist Car Search
You have to enter a zipcode, sorry that's not clear.
raccoonone
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14 years ago
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on: Show HN: Craigslist Car Search
Ya, adding color search is definitely on our roadmap. It'll be pretty easy for dealership cars, since they usually list it, and for Craigslist hopefully some blob detection will work.
raccoonone
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14 years ago
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on: Review my startup - Lean Domain Search: The fastest way to find a domain name
Very useful, but I'd like it to show more suggestions. Searching for common words results in only a few available domains, and hundreds of taken ones.
raccoonone
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15 years ago
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on: When a great idea isn’t enough: Why the “Last.fm for news” died
It seems like a cool idea to me. I'd even thought of working on something similar.
How many of you would use a service like that?
