Facebook Tech Talk: Mark Zuckerberg on Memcached | Hacker News Reader

Facebook Tech Talk: Mark Zuckerberg on Memcached

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34 pointspc14 comments

Zuck doesn't seem very fresh on what he's talking about.

Yeah, I guess the main point here was to have the CEO give a TechTalk - which fails. Of course showing half of your companys employees during your presentation might be very motivating but if you mess up the tech part it just ends up being weird.

It doesn't matter. His primary goal in giving the talk himself was probably not so much to teach people about memcached, but more to signal his values, one of which is that Facebook is a company where technical contributions are highly regarded.

Anyone else find the upward inflection in his speech to be annoying?

I love memcached so much, it's totally saving my butt right now. This was a pretty interesting talk, but I don't think Zuck should have been the one giving it. He needs to give his talent more room to showcase their talent.

Why is he giving this talk? I don't believe he fully knows what he is talking about. Seems like he is just following a presentation someone else prepared for him.

Are these numbers right? http://img300.imageshack.us/img300/8227/picture9sh1.png

That equates to like 24 gigs of RAM per server!?

[Update: I thought 8GB was big (& 16GB was huge) - just from my limited experience - http://www.slicehost.com/]

With high-end server motherboards having as many as 16 memory slots and 8GB DIMMs existing on the market, it's certainly possible. http://supermicro.com/products/motherboard/Xeon1333/5400/X7D...

We run 32 GB on our DB servers ... may be going to 64 GB soon.

I've been playing with 6 boxes, 32 gigs each.

Our main box has 32gb ...

RAM is disproportionately expensive on leased/managed servers; afaik it's just the pricing model that hosting companies established in the past (when RAM accounted for more of the total hardware cost compared to now), and the industry has stuck with it.

Way back in May 2007, Facebook reported using 200 16GB memcached servers, and suggested 32GB servers were soon on the way:

http://article.gmane.org/gmane.comp.web.cache.memcached/3224

Big, popular services don't skimp when fighting latency.

read this from mysqlperformanceblog http://www.mysqlperformanceblog.com/2008/08/04/128gb-or-ram-...

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