Ricardo Nabinger Sanchez
@rnsanchez.bsky.social
Computing Scientist 🇧🇷 🇪🇸 🇪🇺 -- B.Sc. Unisinos '07 🇧🇷, M.Sc. UofA '10 🇨🇦 -- Compilers, low-level code, static analysis, performance
Reposted by Ricardo Nabinger Sanchez
“Assembly isn’t dead - just specialized.” Matt Godbolt and Dan Kusswurm explore modern x86 coding, when assembly is worth it, and how it can deliver up to 100x speedups for critical tasks.
youtu.be/L2Qu9rk05rE?...
youtu.be/L2Qu9rk05rE?...
Modern X86 Assembly Language Programming • Daniel Kusswurm & Matt Godbolt • GOTO 2025
YouTube video by GOTO Conferences
youtu.be
November 20, 2025 at 1:45 PM
“Assembly isn’t dead - just specialized.” Matt Godbolt and Dan Kusswurm explore modern x86 coding, when assembly is worth it, and how it can deliver up to 100x speedups for critical tasks.
youtu.be/L2Qu9rk05rE?...
youtu.be/L2Qu9rk05rE?...
Reposted by Ricardo Nabinger Sanchez
Bingeing TikTok reels may be hazardous to your well-being.
71 studies, >98k people: The more short-form videos teens and adults watched, the more they struggled with attention, self-control, and stress and anxiety.
Read a book. Watch a movie. Long live longform.
71 studies, >98k people: The more short-form videos teens and adults watched, the more they struggled with attention, self-control, and stress and anxiety.
Read a book. Watch a movie. Long live longform.
November 14, 2025 at 4:08 PM
Bingeing TikTok reels may be hazardous to your well-being.
71 studies, >98k people: The more short-form videos teens and adults watched, the more they struggled with attention, self-control, and stress and anxiety.
Read a book. Watch a movie. Long live longform.
71 studies, >98k people: The more short-form videos teens and adults watched, the more they struggled with attention, self-control, and stress and anxiety.
Read a book. Watch a movie. Long live longform.
Reposted by Ricardo Nabinger Sanchez
The world’s first microprocessor is *NOT* from Intel.
But you won’t find it in many textbooks.
It was a secret only declassified in 1998; for good reason.
The Garrett AiResearch F14 Air Data Computer was 8x faster than the Intel 4004, and a year earlier!
But you won’t find it in many textbooks.
It was a secret only declassified in 1998; for good reason.
The Garrett AiResearch F14 Air Data Computer was 8x faster than the Intel 4004, and a year earlier!
November 13, 2025 at 8:11 PM
The world’s first microprocessor is *NOT* from Intel.
But you won’t find it in many textbooks.
It was a secret only declassified in 1998; for good reason.
The Garrett AiResearch F14 Air Data Computer was 8x faster than the Intel 4004, and a year earlier!
But you won’t find it in many textbooks.
It was a secret only declassified in 1998; for good reason.
The Garrett AiResearch F14 Air Data Computer was 8x faster than the Intel 4004, and a year earlier!
Reposted by Ricardo Nabinger Sanchez
This December, I'll be posting an article & video each day until Christmas in the Advent of Compiler Optimisations! #AoCO2025
Each day we'll explore a fun optimisation in C or C++; some low-level, x86 or ARM-specific, some high-level. Hope you'll join me!
YT: youtube.com/mattgodbolt
Blog: xania.org
Each day we'll explore a fun optimisation in C or C++; some low-level, x86 or ARM-specific, some high-level. Hope you'll join me!
YT: youtube.com/mattgodbolt
Blog: xania.org
Matt Godbolt’s blog
xania.org
November 13, 2025 at 7:51 PM
This December, I'll be posting an article & video each day until Christmas in the Advent of Compiler Optimisations! #AoCO2025
Each day we'll explore a fun optimisation in C or C++; some low-level, x86 or ARM-specific, some high-level. Hope you'll join me!
YT: youtube.com/mattgodbolt
Blog: xania.org
Each day we'll explore a fun optimisation in C or C++; some low-level, x86 or ARM-specific, some high-level. Hope you'll join me!
YT: youtube.com/mattgodbolt
Blog: xania.org
Brought up some honey to a (possibly) carpenter bee, that looked pretty exhausted. Quite uncommon for me to find them on the ground; lots of woodpeckers and other predators visit the garden.
Hope it can fuel up quickly and return to its nesting log soon enough!
Hope it can fuel up quickly and return to its nesting log soon enough!
November 5, 2025 at 5:09 PM
Brought up some honey to a (possibly) carpenter bee, that looked pretty exhausted. Quite uncommon for me to find them on the ground; lots of woodpeckers and other predators visit the garden.
Hope it can fuel up quickly and return to its nesting log soon enough!
Hope it can fuel up quickly and return to its nesting log soon enough!
Reposted by Ricardo Nabinger Sanchez
#Intel released the 89th edition of the Software Developer’s Manuals with a new SEAM, and completely rewritten CPUID (with domain info) section:
All-in-One:
cdrdv2-public.intel.com/868137/32546...
Changes v81:
cdrdv2-public.intel.com/868136/25204...
UDB (opcode D6h) canonized
All-in-One:
cdrdv2-public.intel.com/868137/32546...
Changes v81:
cdrdv2-public.intel.com/868136/25204...
UDB (opcode D6h) canonized
October 29, 2025 at 9:51 AM
#Intel released the 89th edition of the Software Developer’s Manuals with a new SEAM, and completely rewritten CPUID (with domain info) section:
All-in-One:
cdrdv2-public.intel.com/868137/32546...
Changes v81:
cdrdv2-public.intel.com/868136/25204...
UDB (opcode D6h) canonized
All-in-One:
cdrdv2-public.intel.com/868137/32546...
Changes v81:
cdrdv2-public.intel.com/868136/25204...
UDB (opcode D6h) canonized
Reposted by Ricardo Nabinger Sanchez
Colleges do a terrible job of teaching C++.
It’s not “C with Classes”. Injected into curriculums as a demonstration of early CS concepts, it leaves many with a sour taste.
Students later immediately fall in love with the first language that *doesn’t* feel that way.
It’s not “C with Classes”. Injected into curriculums as a demonstration of early CS concepts, it leaves many with a sour taste.
Students later immediately fall in love with the first language that *doesn’t* feel that way.
October 13, 2025 at 9:21 PM
Colleges do a terrible job of teaching C++.
It’s not “C with Classes”. Injected into curriculums as a demonstration of early CS concepts, it leaves many with a sour taste.
Students later immediately fall in love with the first language that *doesn’t* feel that way.
It’s not “C with Classes”. Injected into curriculums as a demonstration of early CS concepts, it leaves many with a sour taste.
Students later immediately fall in love with the first language that *doesn’t* feel that way.
Reposted by Ricardo Nabinger Sanchez
P99 CONF is next week! Which talks are on your "can't miss" list?
October 13, 2025 at 3:36 PM
P99 CONF is next week! Which talks are on your "can't miss" list?
Reposted by Ricardo Nabinger Sanchez
If you ever get a chance to inspire, do it! ... as great day had at #CyberGirlsFirst event at Aston Uni, inspiring 13yo girls to pursue tech careers by sharing my journey & passion for tech. Loved their energy & curiosity! Let's keep encouraging the next gen of women in STEM! #WomenInTech
October 2, 2025 at 4:54 PM
If you ever get a chance to inspire, do it! ... as great day had at #CyberGirlsFirst event at Aston Uni, inspiring 13yo girls to pursue tech careers by sharing my journey & passion for tech. Loved their energy & curiosity! Let's keep encouraging the next gen of women in STEM! #WomenInTech
Reposted by Ricardo Nabinger Sanchez
lynn.github.io/flateview/
Impressive. Visualizer of zlib (gzip) - paste in a paragraph or two of text.
Reminds me of @angealbertini.bsky.social's binary file-format illustrations (google 'corkami').
Impressive. Visualizer of zlib (gzip) - paste in a paragraph or two of text.
Reminds me of @angealbertini.bsky.social's binary file-format illustrations (google 'corkami').
September 29, 2025 at 7:28 PM
lynn.github.io/flateview/
Impressive. Visualizer of zlib (gzip) - paste in a paragraph or two of text.
Reminds me of @angealbertini.bsky.social's binary file-format illustrations (google 'corkami').
Impressive. Visualizer of zlib (gzip) - paste in a paragraph or two of text.
Reminds me of @angealbertini.bsky.social's binary file-format illustrations (google 'corkami').
Reposted by Ricardo Nabinger Sanchez
Everyone knows that the x86 ISA is big.
Modern CPUs have ~1000+ mnemonics. Guess how many make up 90% of compiled C/C++ code?
TWELVE. I'm not kidding.
The question is…what if we shrank it?
Modern CPUs have ~1000+ mnemonics. Guess how many make up 90% of compiled C/C++ code?
TWELVE. I'm not kidding.
The question is…what if we shrank it?
September 16, 2025 at 6:29 PM
Everyone knows that the x86 ISA is big.
Modern CPUs have ~1000+ mnemonics. Guess how many make up 90% of compiled C/C++ code?
TWELVE. I'm not kidding.
The question is…what if we shrank it?
Modern CPUs have ~1000+ mnemonics. Guess how many make up 90% of compiled C/C++ code?
TWELVE. I'm not kidding.
The question is…what if we shrank it?
Reposted by Ricardo Nabinger Sanchez
My latest cartoon for @newscientist.com
p.s. this week I am on a USA/Canada tour with my new book. Details and preorder links at tomgauld.com
p.s. this week I am on a USA/Canada tour with my new book. Details and preorder links at tomgauld.com
September 15, 2025 at 5:46 PM
My latest cartoon for @newscientist.com
p.s. this week I am on a USA/Canada tour with my new book. Details and preorder links at tomgauld.com
p.s. this week I am on a USA/Canada tour with my new book. Details and preorder links at tomgauld.com
Reposted by Ricardo Nabinger Sanchez
Code Complete is one of the most enduring books on software engineering. Steve McConnell wrote the 900-page handbook just five years into his career - decades later, Code Complete is still a best-seller.
Steve rarely gives interviews, so I hope you enjoy this special one.
Steve rarely gives interviews, so I hope you enjoy this special one.
September 10, 2025 at 7:34 PM
Code Complete is one of the most enduring books on software engineering. Steve McConnell wrote the 900-page handbook just five years into his career - decades later, Code Complete is still a best-seller.
Steve rarely gives interviews, so I hope you enjoy this special one.
Steve rarely gives interviews, so I hope you enjoy this special one.
Reposted by Ricardo Nabinger Sanchez
Our technical deep-dive about AppSuite PDF Editor backdoor is out 📝👇
www.gdatasoftware.com/blog/2025/08...
#GDATA #GDATATechblog #AppSuite
www.gdatasoftware.com/blog/2025/08...
#GDATA #GDATATechblog #AppSuite
Backdoor in "AppSuite PDF Editor": A Detailed Technical Analysis
Some threat actors are bold enough to submit their own malware as false positive to antivirus companies and demand removal of the detection. This is exactly what happened with AppSuite PDF Editor.
www.gdatasoftware.com
August 28, 2025 at 5:08 PM
Our technical deep-dive about AppSuite PDF Editor backdoor is out 📝👇
www.gdatasoftware.com/blog/2025/08...
#GDATA #GDATATechblog #AppSuite
www.gdatasoftware.com/blog/2025/08...
#GDATA #GDATATechblog #AppSuite
Reposted by Ricardo Nabinger Sanchez
Finally got my own "final version" ABI mug! Really happy with how they came out!
Fancy one yourself? Get yours at shop.compiler-explorer.com ! All proceeds go to keeping the site running.
Fancy one yourself? Get yours at shop.compiler-explorer.com ! All proceeds go to keeping the site running.
August 25, 2025 at 5:21 PM
Finally got my own "final version" ABI mug! Really happy with how they came out!
Fancy one yourself? Get yours at shop.compiler-explorer.com ! All proceeds go to keeping the site running.
Fancy one yourself? Get yours at shop.compiler-explorer.com ! All proceeds go to keeping the site running.
Reposted by Ricardo Nabinger Sanchez
New Tool: xstack - Completely Passive eBPF Linux Stack Profiling Without Any Tracepoints
tanelpoder.com/posts/xstack...
tanelpoder.com/posts/xstack...
August 14, 2025 at 10:12 PM
New Tool: xstack - Completely Passive eBPF Linux Stack Profiling Without Any Tracepoints
tanelpoder.com/posts/xstack...
tanelpoder.com/posts/xstack...
Reposted by Ricardo Nabinger Sanchez
A new tool in 0x.tools family:
xtop - Top for Wall-Clock Time. It uses eBPF/xcapture v3 and gives you "x-ray vision" into Linux system activity.
It will be available on next Tuesday 19 Aug at 1pm EDT when I also run a live demo webinar!
tanelpoder.com/posts/xtop-t...
xtop - Top for Wall-Clock Time. It uses eBPF/xcapture v3 and gives you "x-ray vision" into Linux system activity.
It will be available on next Tuesday 19 Aug at 1pm EDT when I also run a live demo webinar!
tanelpoder.com/posts/xtop-t...
August 13, 2025 at 5:24 AM
A new tool in 0x.tools family:
xtop - Top for Wall-Clock Time. It uses eBPF/xcapture v3 and gives you "x-ray vision" into Linux system activity.
It will be available on next Tuesday 19 Aug at 1pm EDT when I also run a live demo webinar!
tanelpoder.com/posts/xtop-t...
xtop - Top for Wall-Clock Time. It uses eBPF/xcapture v3 and gives you "x-ray vision" into Linux system activity.
It will be available on next Tuesday 19 Aug at 1pm EDT when I also run a live demo webinar!
tanelpoder.com/posts/xtop-t...
Reposted by Ricardo Nabinger Sanchez
For more information on the 386 package, see my latest blog post. Thanks to @jonbruner.bsky.social and Lumafield for the CT scans.
www.righto.com/2025/08/inte...
www.righto.com/2025/08/inte...
A CT scanner reveals surprises inside the 386 processor's ceramic package
Intel released the 386 processor in 1985, the first 32-bit chip in the x86 line. This chip was packaged in a ceramic square with 132 gold-pl...
www.righto.com
August 9, 2025 at 4:40 PM
For more information on the 386 package, see my latest blog post. Thanks to @jonbruner.bsky.social and Lumafield for the CT scans.
www.righto.com/2025/08/inte...
www.righto.com/2025/08/inte...
Reposted by Ricardo Nabinger Sanchez
The Death of Industrial Design and the Era of Dull Electronics
The Death of Industrial Design and the Era of Dull Electronics
Hackaday Article
hackaday.com
July 23, 2025 at 2:02 PM
The Death of Industrial Design and the Era of Dull Electronics
Reposted by Ricardo Nabinger Sanchez
We obtained a mysterious box of 1960s electronics. I reverse-engineered it, and with much effort, we got it running. It turns out to be a test unit for testing NASA's Up-Data Link, a system from the Apollo moon landing to control the spacecraft from the ground. Let's take a look inside... 1/n
July 21, 2025 at 4:58 PM
We obtained a mysterious box of 1960s electronics. I reverse-engineered it, and with much effort, we got it running. It turns out to be a test unit for testing NASA's Up-Data Link, a system from the Apollo moon landing to control the spacecraft from the ground. Let's take a look inside... 1/n
Reposted by Ricardo Nabinger Sanchez
One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.
June 13, 2025 at 6:16 PM
One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.
Reposted by Ricardo Nabinger Sanchez
Building a Debugger is now officially released!
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
June 10, 2025 at 3:59 PM
Building a Debugger is now officially released!
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
Reposted by Ricardo Nabinger Sanchez
New Blog: Catbench Vector Search Playground has Postgres Query Throughput and Latency Monitoring Now
This is a demo app that helps you to learn and experiment with adding vector search-based functionality into new or existing apps!
(link in reply)
This is a demo app that helps you to learn and experiment with adding vector search-based functionality into new or existing apps!
(link in reply)
May 30, 2025 at 7:20 PM
New Blog: Catbench Vector Search Playground has Postgres Query Throughput and Latency Monitoring Now
This is a demo app that helps you to learn and experiment with adding vector search-based functionality into new or existing apps!
(link in reply)
This is a demo app that helps you to learn and experiment with adding vector search-based functionality into new or existing apps!
(link in reply)
Reposted by Ricardo Nabinger Sanchez
Our annual #P99CONF brings technologists together to discuss the latest experiments, optimizations, ideas, and lessons learned. If you have an idea or a big problem that you've solved, we invite you to submit your session idea today! www.p99conf.io/2025/05/05/c...
#ScyllaDB
#ScyllaDB
Low-Latency & Performance-Obsessed Engineers: Share Your Insights At P99 CONF
Obsessed with high performance and low latency engineering? Discuss your experiments, optimizations, ideas, and lessons learned with ~30K like-minded engineers... at P99 CONF 2025!
www.p99conf.io
May 12, 2025 at 12:26 PM
Our annual #P99CONF brings technologists together to discuss the latest experiments, optimizations, ideas, and lessons learned. If you have an idea or a big problem that you've solved, we invite you to submit your session idea today! www.p99conf.io/2025/05/05/c...
#ScyllaDB
#ScyllaDB
Wow! lsds is super useful if you ever had to cat/grep a thousand places for finding out about disks/block devices.
New Tool: lsds - List All Linux Block Devices and Settings in One Place
tanelpoder.com/posts/lsds-l...
tanelpoder.com/posts/lsds-l...
May 9, 2025 at 7:01 PM
Wow! lsds is super useful if you ever had to cat/grep a thousand places for finding out about disks/block devices.