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The Return of the Frame Pointers

Brendan Gregg

Only in extreme circumstances does the cost (in processor time and I-cache footprint) translate to a tangible benefit - circumstances which usually resort to hand-coded assembly anyway. It shouldn't be 10%, unless it's cache effects. Google should be no surprise because they pioneered continuous profiling.)

Java 145
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Compress objects, not cache lines: an object-based compressed memory hierarchy

The Morning Paper

Compress objects, not cache lines: an object-based compressed memory hierarchy Tsai & Sanchez, ASPLOS’19. Last time out we saw how Google have been able to save millions of dollars though memory compression enabled via zswap. If we compress objects instead of cache lines though, we can get to a 56% compression ratio (c).

Cache 61
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USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon

Brendan Gregg

Google and Amazon’s latest AI chips have arrived," [link] Oct 2022 - [Intel 22] Intel, "Intel® Developer Cloud," [link] accessed Dec 2022 I've taken care to cite the author names along with the talk titles and dates, including for Internet sources, instead of the common practice of just listing URLs.

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Emerging Fault Modes: Challenges and Research Opportunities

ACM Sigarch

We then discuss defects observed, the role of test and design to address this problem, and identify research opportunities. An example of a specification is the correct operation of the hardware of a microprocessor. While testing is important, exhaustive testing is challenging given the sheer size of modern processor designs.

Energy 52
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USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon

Brendan Gregg

DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

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From Heavy Metal to Irrational Exuberance

ACM Sigarch

To be clear, these languages were not designed to be fast or space-efficient, but for ease of use. Unfortunately, languages like Python have proven resistant to efficient implementation, partly because of their design, and partly because of limitations imposed by the need to interop with C code. Are caches large enough for this code?

C++ 108
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Front-End Performance Checklist 2021

Smashing Magazine

Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. Looking back now, things seem to have changed quite significantly. Large preview ). Large preview ).