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A Crash Course in Modern Hardware
Recorded at:

by Cliff Click on Jan 12, 2010 |

Summary
In this presentation from the JVM Languages Summit 2009, Cliff Click discusses the Von Neumann architecture, CISC vs RISC, the rise of multicore, Instruction-Level Parallelism (ILP), pipelining, out-of-order dispatch, static vs dynamic ILP, performance impact of cache misses, memory performance, memory vs CPU caching, examples of memory/CPU cache interaction, and tips for improving performance.

Bio

With more than twenty-five years experience developing compilers, Cliff serves as Azul Systems' Chief JVM Architect. Cliff joined Azul in 2002 from Sun Microsystems where he was the architect and lead developer of the HotSpot Server Compiler, a technology that has delivered dramatic improvements in Java performance since its inception.

The 2009 JVM Language Summit is an open technical collaboration among language designers, compiler writers, tool builders, runtime engineers, and VM architects. The talks inform the audience, in detail, about the state of the art of language design and implementation on the JVM, and the present and future capabilities of the JVM itself.

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Community comments

A Crash Course in Modern Hardware by Justin Forder

Like the presenter, I started programming in the days when you could calculate the execution time of your program by getting out the pocket-sized folding instruction set card and adding up the numbers of cycles for the instructions involved.

Times have changed!

This presentation is essential viewing for anyone who doesn't appreciate how much indirection there is between their program - even as machine instructions - and the runtime behaviour of mainstream processors.

excellent talk by peter lin

As usual, Cliff gives a great talk. I always learn new things, but end up feeling "there's so much more to learn".

thanks

no worky by Sverre Eldøy

video does not play (tried both safari and firefox on mac and ie on xp). looking forward to a working version. torrent or youtube link anyone?

Re: no worky by Ryan Slobojan

Hi Sverre,

Our video server appears to be down at the moment - our operations team is looking into it, and we'll get this back up and running ASAP.

Thanks,

Ryan Slobojan
Chief Editor, InfoQ.com

Re: no worky by brent spires

Gotta love slashdot. Perhaps youtube it?

Re: no worky by Sverre Eldøy

Cheers Ryan! :) Looking forward to it!

Re: no worky by Ryan Slobojan

Hi Sverre,

We're back up and running now, for your viewing pleasure - thanks for your patience!

Ryan Slobojan
Chief Editor, InfoQ.com

Re: no worky by Bo Stern

Still not working!

Frozen by xkreb starx

The video keeps freezing. It's unwatchable.

Re: no worky by jean francois bocquet

do you have a transcript of the video ? Human are very effective at reading, you know ? Adding a transcript would spare a lot of bandwidth and is a lot more user and ecology friendly. It is also handicap friendly (for deaf people).

Great talk by Rhys Parsons

This is a great talk. I haven't done any assembly programming for many years and have forgotten a lot of it. Interesting to hear the current state of play in terms of hardware.

Re: no worky by Ian Phillips

aaaand... it's broken again.

Fantastic.

Not working by pau carre

This doesn't work!
Test: Firefox + Linux and Firefox + Windows Vista

...I'm getting frustrated...

Re: no worky by Dobrica Pavlinušić

still not working :-(

Please put it on youtube, video link does not work by Dan Synek

Your video link is unusable. Perhaps you are slashdotted. I would really like to see it!
Dan

Re: no worky by Dobrica Pavlinušić

I e-mailed bugs(at)infoq.com listed at about page, and they fixed it within hour. Thanks, great work!

Wouldn't be better to let users move through the slides separately ...? by Pratap Das

Very interesting topic - unfortunately, the video is choppy (bandwidth issues?) and fairly long. Wouldn't it be better to allow users to "skip to the next page" through the slides to see what the presentation is all about before investing 54 minutes on it? (e.g. slides a la slideshare.net, for instance). Once we get an overall picture of the presentation, sufficiently motivated users could then decide to invest their time on the choppy video.
Right now I'm twiddling around with the video stream to see what the slides ahead are about ...
This is a comment not on this specific video, but to the general usability (or lack thereof) of the video presentations.
--Das

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17 comments
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