Carlos Torres @lambdaPerf

Software Performance engineer. (Tweets are my own and not that of my employer) Austin, TX Joined December 2009

Tweets

2K
Followers

125
Following

353
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6K

Jens Axboe @axboe

2 years ago

@love_reading50 I'll say what I said elsewhere too - most of these were a result of the original kthread approach to handling async offload, which in hindsight was a mistake. That code base is no longer available in even 5.10-stable (and nothing newer), so that attack vector no longer exists.

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Andrey Akinshin @andrey_akinshin

2 years ago

A preprint of my paper "Weighted quantile estimators" is finally available! PDF: arxiv.org/pdf/2304.07265… Announcement: aakinshin.net/posts/preprint…

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Amer Ather @amernetflix

3 years ago

My "New Year Resolution" - Start publishing blogs on Medium. I wrote a new blog "Noisy Neighbors" and also migrated and updated few older blogs listed below: medium.com/@amerather_9719 Noisy Neighbor: medium.com/@amerather_971…

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Yatin Manerkar @ymanerkar

3 years ago

I am recruiting PhD students! If you're interested in the intersection of formal methods and computer architecture/systems research, please apply to @UMichCSE's PhD program and mention my name in your application! RTs to spread the word would be greatly appreciated🙏.

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Nick Morgan (parody) @skilldrick

3 years ago

So, if anyone’s looking for a remote staff software engineer, until today tech lead of the Tweet Service, hit me up!

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Eric Lippert @ericlippert

3 years ago

I know it's a tough market out there but if anyone has leads on positions for smart data scientists with some compiler experience who solve hard problems at scale, please do reply here; thanks!

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Zach Brass @zhbrass

3 years ago

This morning I woke up to the news that I've been laid off from FB. I guess I'm back on the job market. If you know anyone who's looking for an iOS developer with 11+ years of experience doing iOS, DM me.

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Tanvir Ahmed Khan @takhandipu

3 years ago

I am currently applying for tenure-track faculty positions in the US and abroad. Please contact me at [email protected] if you are hiring this upcoming cycle! CV, web.eecs.umich.edu/~takh/cv_tanvi… Website, web.eecs.umich.edu/~takh/ (RTs are appreciated)

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Alexander Yee @Mysticial

3 years ago

While everyone is enjoying all the #AMD #Zen4 performance reviews, here is my teardown of Zen4's #AVX512 implementation and architecture. tl;dr - Intel has some serious competition now. mersenneforum.org/showthread.php…

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Brian Gesiak @modocache

4 years ago

Very cool paper on a sampling profiler Googlers built -- it collects branch records for LLVM optimizations, but doesn't rely on Intel hardware: "Break Dancing: Low-Overhead, Architecture Neutral Software Branch Tracing" storage.googleapis.com/pub-tools-publ…

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Cassidy @cassidoo

4 years ago

Who is hiring junior developers (<1 year of experience) right now? If you're not, please retweet for reach!

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Daniel Holden @anorangeduck

4 years ago

IMO the two most important transformations for performant code are Array of Structs to Struct of Arrays and Loop Fusion to Loop Fission. The 1st is essential for cache perf and the 2nd breaks data dependencies and often unlocks more optimizations that were not obvious before.

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John Breth (JB) | CyberInsight® on YouTube @JBizzle703

4 years ago

I made this infographic to help you remember some Linux terminal keyboard shortcuts. If you're just starting out, give these a try🤝

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Halvar Flake @halvarflake

4 years ago

I tweeted this before, but feel the need to tweet it again: The blog that @andrey_akinshin runs at aakinshin.net/posts/ is probably the best "applied statistics for the performance engineer" blog out there.

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Damian Gryski @dgryski

4 years ago

15th USENIX Symposium on Operating Systems Design and Implementation (OSDI '21 youtube.com/playlist?list=…

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Paul E. McKenney @paulmckrcu

5 years ago

And at long last, seven years after the first edition, the Second Edition lives! mirrors.edge.kernel.org/pub/linux/kern…

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Mark Ermolov @_markel___

5 years ago

Wow, we (+@h0t_max and @_Dmit) have found two undocumented x86 instructions in Intel CPUs which completely control microarchitectural state (yes, they can modify microcode)