VirtualTam's bookmarks

1. IO devices and latency - The history, functionality, and performance of non-volatile storage devices

   2025-06-02
   hardware/cpu storage/cache storage/disk storage/solid-state-drive storage/tape throughput time/latency visualization/animation

   Permalink
   • The Real Failure Rate of EBS
2. What the Hell Is a Target Triple?

   2025-05-22
   compiler/gcc compiler/llvm hardware/cpu operating-system programming/rust programming/webassembly

   Permalink

   Here we begin to see that target triples are not a neat system. They are hell.

   • Target Triplet (OSDev)
   • Unreal Mode (Wikipedia)
3. cpufetch - Command-line tool to display CPU information

   2025-01-11
   command-line hardware/cpu programming/c

   Permalink
4. The Annotated Hacker Test | For those of us who didn't receive a case of beer with our computer.

   2024-11-19
   computer hardware/cpu hardware/ram history nerd programming/assembly programming/c programming/pascal unix

   Permalink
   • Original plain text version from 1989
   • Real Programmers Don't Use PASCAL (see: THE REAL PROGRAMMER'S NATURAL HABITAT)
5. *(char*)0 = 0; - What Does the C++ Programmer Intend With This Code?

   2024-03-12
   compiler hardware/cpu memory/cache programming/c programming/c++

   Permalink
6. Rust std fs slower than Python!? No, it's hardware!

   2023-11-30
   amd hardware/cpu linux/kernel/ebpf memory observability/tracing programming/python programming/rust

   Permalink
   • Xuanwo/when-i-find-rust-is-slow
   • Std::fs::read slow?
7. LWN - What every programmer should know about memory

   2023-07-22
   hardware hardware/cpu hardware/ram memory memory/cache performance

   Permalink
   • What every programmer should know about memory (Full PDF version) Mirror
   • Part 1: Introduction & Commodity Hardware Today
   • Part 2: CPU Caches
   • Part 3: Virtual Memory
   • Part 4: NUMA support
   • Part 5: What programmers can do
   • How much of ‘What Every Programmer Should Know About Memory’ is still valid?
8. Make your programs run faster by better using the data cache

   2023-07-22
   algorithm data-structure hardware/cpu memory/cache performance programming/c valgrind

   Permalink
   • Use explicit data prefetching to faster process your data structure
   • ibogosavljevic/johnysswlab
   • What is cache memory - Gary explains
   • Cachegrind: a high-precision tracing profiler
9. SiliFuzz: Fuzzing CPUs by proxy

   2022-09-11
   google hardware hardware/cpu programming/fuzzing

   Permalink
   • https://raw.githubusercontent.com/google/silifuzz/main/paper/silifuzz.pdf
10. avx-turbo: Test the non-AVX, AVX2 and AVX-512 speeds across various active core counts

    2019-12-31
    hardware/cpu instruction intel performance performance/benchmark processor

    Permalink
    • https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
    • https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html
11. c++ - Performance of built-in types : char vs short vs int vs. float vs. double - Stack Overflow

    2019-12-31
    hardware/cpu memory performance processor programming/c programming/c++

    Permalink
12. assembly - How to run a program without an operating system? - Stack Overflow

    2019-04-26
    bios embedded hack hardware/cpu operating-system programming/assembly

    Permalink
13. x86 Instructions | Twitter

    2019-02-08
    chip hardware hardware/cpu processor pun twitter wtf

    Permalink
14. Playing Badass Acorn Archimedes Games on a Raspberry Pi | DXM Tech Support

    2018-07-01
    arm computer game hardware/cpu history risc

    Permalink
    • http://davetrott.co.uk/2017/03/strategy-is-sacrifice/
15. FlameScope: a visualization tool for exploring different time ranges as Flame Graphs.

    2018-04-05
    hardware/cpu load memory observability/tracing performance stack system

    Permalink
    • https://medium.com/@NetflixTechBlog/netflix-flamescope-a57ca19d47bb
    • https://medium.com/netflix-techblog/java-in-flames-e763b3d32166
16. KCachegrind

    2018-04-02
    hardware/cpu memory memory/cache performance time valgrind

    Permalink
    • https://cgit.kde.org/kcachegrind.git/
    • https://github.com/KDE/kcachegrind (mirror)
    • http://nickology.com/2014/04/16/view-xdebug-cachegrind-files-on-mac-os/
    • https://stackoverflow.com/questions/33094913/how-do-i-read-the-ui-of-qcachegrind
17. htop - an interactive process viewer for Unix

    2018-02-05
    bsd command-line hardware/cpu linux load memory process system unix

    Permalink
18. Exploiting modern microarchitectures: Meltdown, Spectre, and other attacks

    2018-02-05
    hack hardware hardware/cpu meltdown memory security spectre

    Permalink
    • https://fosdem.org/2018/interviews/jon-masters/
    • https://fosdem.org/2018/schedule/event/closing_keynote/
19. Who was responsible for leaking the Meltdown/Spectre story beforehand, and thus breaking the co-ordinated patched release planned for 9th-Jan between various vendors?

    2018-01-08
    hack hardware hardware/cpu intel linux memory security

    Permalink
    • https://cyber.wtf/2017/07/28/negative-result-reading-kernel-memory-from-user-mode/
    • https://cyber.wtf/2018/01/05/behind-the-scene-of-a-bug-collision/
    • https://lwn.net/Articles/738975/
    • https://lwn.net/Articles/741878/
    • https://lwn.net/Articles/741882/
    • https://twitter.com/misc0110/status/948706387491786752
    • https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/
20. Meltdown and Spectre

    2018-01-04
    amd arm attack google hack hardware hardware/cpu intel memory research security

    Permalink
    • https://security.googleblog.com/2018/01/todays-cpu-vulnerability-what-you-need.html
    • https://googleprojectzero.blogspot.com/2018/01/reading-privileged-memory-with-side.html
    • https://www.reddit.com/r/linux/comments/7nybl1/meltdown_and_spectre/
    • https://www.reddit.com/r/linux/comments/7nzsih/intel_was_aware_of_the_chip_vulnerability_when/
    • https://www.reddit.com/r/linux/comments/7nyaku/todays_cpu_vulnerability_what_you_need_to_know/

    Exploits:

    • https://github.com/IAIK/meltdown