This post is written more as a warning

Anyone who made any HackerRank problems considering performance has seen this phrase in the assignment: “watch out for slow IO”.
We are used to think about files, databases and such as potentially slow IO, but the Console?
Yes, and you will be amazed how much.

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One of the main processes in cookit is dealing with extracting recipe information from raw html. I know it isn’t the most elegant solution but it is the only universal one.

But to the point.

Every web page goes through a process involving html parsing, stemming, parsing, and n-gram token matching. Then it’s saved to Sql Server and after transformation to Solr. So a lot of string manipulation, math calculations and from time to time mostly 0-gen GC.

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In the previous post I’ve written about new features in Neo4j. One of the new game changing functions were stored procedures. But, as I experienced, getting them to run on a Windows / .NET environment wasn’t that easy, and I was seeing “There is no procedure with the name …” more often then I wished for. So here is a short how to. Hope to save you some googling.

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Last week I had the opportunity to attend Graph Connect Europe. Many great sessions, but one thing topped them all - Neo4j 3.0 is out!

And as with previous major release (it introduced Cypher) there are many bug fixes, tweaks, speed improvements, but here are my personal favorites:

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The last time I described the hardware cookit is running on. Commonly referred as crap.

Now it’s time for some info what exactly is running on this fine pieace of hardware.

So, what is responsible for what?

  • The website - besides the obvious of serving the, it also hosts the admin panel and Hangfire dashboard. This part is almost read-only. Even the admin panel - all it does is schedule a Hangfire job and that’s it.
    That idea stuck with me since reading a blog post about how reddit is architectured. And by the way it is a must read blog for anyone interested in how the big guys design their systems.
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