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Meet the Finalists for the 2023 Pwnie Awards

Hosts Sophia d'Antoine and Ian Roos presented the list at Summercon in Brooklyn, where they also handed out a surprise Lifetime Achievement Award. ....

United States , Jonathan Manzi , Pietro Borrello , Ben Nassi , Zubair Shafiq , Peiter Zatko , Florian Roth , Jonathan Scott , Dino Dai Zovi , Luyi Xing , Cristiano Giuffrida , Jason Lowe , Matilda Backendal , Jiale Guan , Herbert Bos , Zurich Roos , Zhiyun Qian , Al Qaeda , Kaustav Goswami , Hari Venugopalan , Jakob Koschel , Daniele Cono Delia , Ian Roos , Samuelt King , Miro Haller , Kenny Paterson ,

Branch predictor: How many "if"s are too many? Including x86 and M1 benchmarks!

Branch predictor: How many "if"s are too many? Including x86 and M1 benchmarks!
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Paula Clayton , Dan Luu , Matt Godbolt , David Wragg , Branch Target Buffer , Vladimir Uzelac , Intel Xeon , பால களிமண் , டான் ளூஉ , கிளை இலக்கு இடையக , இன்டெல் க்ஷ்ெோன் ,

33 hardware and firmware vulnerabilities: A guide to the threats

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In January 2018, the entire computer industry was put on alert by two new processor vulnerabilities dubbed Meltdown and Spectre that defeated the fundamental OS security boundaries separating kernel and user space memory. The flaws stemmed from a performance feature of modern CPUs known as speculative execution and mitigating them required one of the biggest patch coordination efforts in history, involving CPU makers, device manufacturers and operating system vendors.
Meltdown and Spectre were certainly not the first vulnerabilities to result from a hardware design decision, but their widespread impact sparked the interest of the security research community into such flaws. Since then, many researchers, both from academia and the private sector, have been studying the low-level operation of CPUs and other hardware components and have been uncovering more and more issues. ....

United Kingdom , Xilinx Fpgas , Intel Software Guard Extensions , Speculative Store Bypass , University Of Birmingham , Branch Target Buffer , Helmholtz Center , Horst Goertz Institute , It Security At Ruhr University Bochum , Graz University Of Technology , Rogue Data Cache Load , Rogue System Register Read , Protection Key Bypass , Bounds Check Bypass , History Table , Microarchitectural Data Sampling , Like Fallout , Ruhr University Bochum , Sandy Bridge , Graz University , Project Zero , ஒன்றுபட்டது கிஂக்டம் , இன்டெல் மென்பொருள் காவலர் நீட்டிப்புகள் , பல்கலைக்கழகம் ஆஃப் பர்மிங்காம் , கிளை இலக்கு இடையக , க்ர்யாஸ் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் ,

ARM Cortex-A72 fetch and branch processing | Sand, software and sound

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Let’s take a closer look at instruction fetch, decode and dispatch in the Cortex-A72 micro-architecture. These are the “front-end” stages of the core pipeline. The “back-end” of the pipeline consists of the register file(s), execution units and retirement (reorder) buffer. Branch prediction is frequently associated with the front-end since it directly affects instruction fetch.
[Update: This post is part 1 of a two part series. Part 2 discusses ARM Cortex-A72 execution and load/store operations.]
The front-end has one major job: Fetch ARMv8 instructions and keep the back-end execution units as busy as possible.
This page is required reading for Raspberry Pi 4 (BCM2711, ARM Cortex-A72) programmers who want to tune their programs for the ARM Cortex-A72. It is also necessary background information for programmers doing performance measurement with PERF (Performance Events for Linux) on Raspberry Pi 4. ....

Paulj Drongowski , Software Optimization , Load Or , Branch Target Buffer , Performance Events , Optimization Guide , Pattern History Table , Return Stack , மென்பொருள் தேர்வுமுறை , சுமை அல்லது , கிளை இலக்கு இடையக , செயல்திறன் நிகழ்வுகள் , தேர்வுமுறை வழிகாட்டி , முறை வரலாறு மேசை , திரும்ப அடுக்கு ,