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Linux Profiling at Netflix

134 pointsby 2510c39011c5over 10 years ago

11 comments

rogerbinnsover 10 years ago
Can anyone speak as to why Netflix needs so much computing power? As far as I can tell, content delivery is handled separately, so all these talks are about the non-content side.<p>Sure we need to see various personalised lists when first connecting, but no activity while actually watching things. The personalisation seems very light - eg their lists of comedies look like they show the same to everyone. And it doesn&#x27;t seem intelligent at all, like for example hiding items you have already seen. <a href="https://news.ycombinator.com/item?id=9083196" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9083196</a>
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planckscnstover 10 years ago
The SCALE 13x videos are going up here: <a href="https://www.youtube.com/channel/UCN2nbMPLJWv3Y__4JuF_hMQ" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;channel&#x2F;UCN2nbMPLJWv3Y__4JuF_hMQ</a> Does anyone know in what room and day Brendan spoke?
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deirdresover 10 years ago
For those who missed today&#x27;s post <a href="https://news.ycombinator.com/item?id=9121015" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=9121015</a> because it got downvoted (wrongly) for being a duplicate: accompanying blog post and video now available: <a href="http://www.brendangregg.com/blog/2015-02-27/linux-profiling-at-netflix.html" rel="nofollow">http:&#x2F;&#x2F;www.brendangregg.com&#x2F;blog&#x2F;2015-02-27&#x2F;linux-profiling-...</a>
ctb_mgover 10 years ago
I really like the workflow chart on slide 22. I can&#x27;t help but think this is a useful way to visualize common workflow sequences of commands (think git add, git commit, git push).<p>Honestly I wouldn&#x27;t mind if man pages came with ascii art to visualize this type of documentation.
krakensdenover 10 years ago
It often feels like the only users of perf are its developers and Brendan Gregg.
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X-Istenceover 10 years ago
This talk was absolutely fantastic at SCALE13x. Lot of good content that will help a lot of people get started with CPU profiling.
distantsoundsover 10 years ago
Those flame graphs look hella useful, hopefully the JDK patches make their way in so we don&#x27;t have to futz around with customizing too much. Thanks for this!
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nwmcsweenover 10 years ago
Omitting the frame pointer is a default on x86_64 its specified in the abi so it&#x27;s going to be mighty tough to change that. I don&#x27;t understand why you recommend not using the debug info when you already have to use it for symbol name resolution.
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apiover 10 years ago
Why FreeBSD for content delivery?
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icantthinkofoneover 10 years ago
So some aren&#x27;t confused. Content delivery is on FreeBSD, not Linux.
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shmerlover 10 years ago
Surely they use Linux, yet they still can&#x27;t offer a proper Linux client. DRMed much.