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rajesh-s

670 karma · joined April 2, 2019

Rajesh Shashi Kumar

Hey there! I'm a Computer Engineer interested in Computer Architecture, Systems and Economics.

Twitter: @rajesh_s_

[ my public key: https://keybase.io/rajesh_s; my proof: https://keybase.io/rajesh_s/sigs/zJCAI7WNWJaF-gmiF0e9_NXhy16GJ5R2hs0jKqY5BvQ ]

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rajesh-s··on Cache made consistent: Meta’s cache invalidation solution
Off topic but what tool did you use to create those cache hierarchy diagrams?
rajesh-s··on ECC matters
Thanks for pointing that out!
rajesh-s··on ECC matters
Right! Section 1.3 of this publication discusses possible mitigations for the row hammer problem and where ECC fits in

https://users.ece.cmu.edu/~omutlu/pub/rowhammer-summary.pdf

rajesh-s··on ECC matters
Good point on the need for awareness!

The industry has convinced the average user of consumer hardware that PPA (Power,Performance,Area) is all that needs to get better with generational improvements. Hoping that the concerning aspects of security and reliability that have come to light in the recent past changes this.

rajesh-s··on ECC matters
A whitepaper on DDR4 ECC by Micron that goes over some of the implementation challenges

https://media-www.micron.com/-/media/client/global/documents...

rajesh-s··on EU countries team up for semiconductor push
I thought ASML manufacturing was in Connecticut, USA? I heard this from Ian Cutress on his channel https://youtu.be/JyocuFlQmTc
rajesh-s··on Tired of note-taking apps
I see you didn't mention Markdown. My solution for the last couple of years to this problem is to have all my notes organized into folder and .md files. A couple of advantages: - I can move around different IDEs/apps since there are a lot of different solutions for every platform there. - Same goes for search and links between folders. Rely on git for version control of the files themselves. - It gives you the flexibility of using plugins to turn into PDF or host as a gitbook private site for example.

Knowledge base organization gets discussed frequently on HN. I understand your frustration though, I've always longed to see a one fit for all platforms though. Onenote sure shows a lot of potential but is probably limited by the fact that MS wants to keep it as close to their office suite as possible.

rajesh-s··on Ask HN: My GitHub account got suspended without any notice
Do you know an example of this?
rajesh-s··on Humans Not Invited
Humans have persistence. I guess that'll help them eventually get through using brute force.
rajesh-s··on Smart Algorithms beat Hardware Acceleration for Large-Scale Deep Learning
Another thing to note is that sparsity is being leveraged even to build a more efficient version of hardware. A good example of this is the Cerebras Waferscale chip that was announced recently. I'm assuming the author was unaware of developments on the hardware side of things.
rajesh-s··on Show HN: Screenshot Hero - iPhone app to make all photos text searchable
I did not find this mentioned anywhere but Onenote makes snips text searchable too
rajesh-s··on Windows on ARM needs more support from developers
This is probably the biggest challenge for ARM and its partners today. It'll be interesting to find out how they incentivise developers and envision the enable ecosystem efforts in this direction.
rajesh-s··on Weird and Innovative Chips (2007)
Found a few posters on the history of computing:

https://news.ycombinator.com/item?id=22000407

rajesh-s··on A curated list of Computer Engineering resources
Thank you for sharing this!
rajesh-s··on A curated list of Computer Engineering resources
Yes! Thanks for noticing it. That was one of the primary reasons I decided to keep it. There seems to be a general confusion about CE/CS.
rajesh-s··on Ask HN: How do I choose the right resource to learn CS fundamentals?
Any specific courses that you'd recommend on LinkedIn Learning?
rajesh-s··on Ask HN: Why haven't we hosted research publications as repositories yet?
Shouldn't one of the primary attributes of research be to enable collaboration after publication for the study of a subject?

Why haven't there been the tools to do that yet?

rajesh-s··on Learning at work is work, and we must make space for it
I've worked at a few places. Something that I wished existed in all those places is a library. It need not be filled with books. Just reserved room space for people to come and read without interruption. I really wish someday people give this a thought.
rajesh-s··on Draw.io: Online Diagramming Website
Long time draw.io user here. A couple of weeks back [brainio](https://brainio.com/#/) was posted on HN. Though it's still in beta, it works really well and I like the concept of going from Markdown to Mindmap and vice-versa.

Drawio is also trying to implement this through PlantUML but it's not fully functional yet with only some constrained types on PlantUML support.

rajesh-s··on Ask HN: How do you organize all your photos?
Exactly! For me the pile keeps building up. I feel this is a problem that's still not addressed well. Sure you could save compressed ones to Instagram/Google Photos, but manually saving this is still a big hurdle for later retrieval. Need a simpler approach to tag and sort them into albums rather than just folders
rajesh-s··on Ask HN: How do you organize all your photos?
Yeah when dealing with files this volume I'd prefer a self-hosted or local storage
rajesh-s··on 2000+ Goodies for Nerds
I suggest you use Gitbooks to do this. It's seamless.
rajesh-s··on 2000+ Goodies for Nerds
Try

(https://github.com/rsapkf/goodies/blob/master/docs/moocs-and...)

rajesh-s··on Unix: A History and a Memoir, by Brian Kernighan
I agree with you on that we don't tend to appreciate history and attempt to be aware of how long things have been around. I'm looking forward to read this too!

On that note, this post reminds me of another great book (eye-opener of sorts) that I read a while ago that takes the reader through the history of some important milestones in hardware and software https://www.amazon.com/Computer-Book-Artificial-Intelligence...

After I read this, I was surprised to learn that the concept/ideas which seem very recent because of the interest/research around it have actually been around for a long time. For instance, I learnt that "Secure Multi Party Communication" has been around since 1982, Verilog since 1984, AI Medical diagnosis since 1975.

rajesh-s··on Show HN: New mind mapping tool for learners
@OP pretty interesting work. Does it support markdown -> mindmap? i.e. Convert indented text to horizontal tree something like [this](https://github.com/dundalek/markmap)
rajesh-s··on “My Google account got suspended because of NewPipe”
Do you guys think Vanced for YouTube and ViperFX could be next? It could be that it's happened to a lot of people but gone unreported.
rajesh-s··on Bullshit.js
Reminds me of [this](https://twitter.com/BullshitQuantum) bot on Twitter.
rajesh-s··on D-Link Home Routers Open to Remote Takeover Will Remain Unpatched
We live in a society where people upgrade their phones every 6 months but do not think about the routers for years.

I wonder if there's any company that's trying to encourage people to upgrade their routers often.

rajesh-s··on For Online Courses, Questions Over How Success is Measured (2014)
In my opinion, the lack of geography-specific pricing makes the evaluation (tests and assignments) and certification inaccessible to a significant population. Of course, one can audit the course anytime but it’s hard to have the same level of sincerity and commitment when there’s no incentive (certification that can probably be showcased on LinkedIN or CV) or deadline based timeline for the course.

I appreciate that these courses have been made available to anyone who wants to learn, but my point is concerning the meagre completion rate.

rajesh-s··on Julia Academy: Learn ML, Parallel Programming, Julia and More
Are these certified courses or audit only?
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