Thursday, June 17, 2021

on Rust

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 I've attended a talk on the Rust programming language, and I've had a couple of realizations. 1. The new and interesting thing in R...
Monday, March 22, 2021

on automatic alerting

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 A few years ago I've read the book "Thinking fast and slow" by Daniel Kahneman. One of the things that stuck the chord fo rme...
Friday, December 25, 2020

time for more analog computers?

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In case if you haven't heard about them, the analog computers were unlike the digital computers. They were the electrical models assmeb...
Sunday, September 27, 2020

a book on probability

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I've stumbled upon the book "Introduction to probability" by Anderson, Seppalainen, and Valko. It's a college textbook.  R...
Wednesday, September 23, 2020

cheap malloc-ed stacks

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I've accidentally realized that the disjointed stacks (ones composed of the separately allocated chunks) can be pretty inexpensive if th...
Saturday, May 9, 2020

consistent time and loops

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It's obvious that the graph loops cannot be treated like the rest of the links with consistent time, or there would be no pipelining: we...
Tuesday, May 5, 2020

consistent time

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I've done some more thinking on the issues of consistent time in Triceps models , and came up with a design. It's not a final design...
Sunday, May 3, 2020

TLB coherence

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The discussion described in the last post got me thinking, why don't we have a hardware consistency for the page address translation cac...
Sunday, April 19, 2020

statistical and password-based memory protection

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I've recently had an interesting online conversation with Terry Lambert (whom I know from the FreeBSD times) about the memory protection...
Wednesday, February 19, 2020

Scheduling policy for burst multithreading

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Over a year ago I've been reading Eric Raymond's blog post on the limitations of multithreading: http://esr.ibiblio.org/?p=8223 Th...
Monday, September 2, 2019

networking & financials

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Looking at the Federal Reserve rates https://www.macrotrends.net/2015/fed- funds-rate-historical-chart , we can observe that once in a w...
Tuesday, July 9, 2019

graph equivalence 7: why it DOESN'T work, and a conjecture

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<<Prev I've got around to read a bit more about the graph equivalence (i.e. isomorphism) problem. Looks like the state of the a...
Friday, March 8, 2019

defense against SQL injections

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I've been reading the question on Quora: Why can't SQL change so that injection attacks are no longer possible? People there were...
Tuesday, December 25, 2018

Triceps 2.1.0 released

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After a long break, Triceps 2.1.0 is finally released: http://triceps.sourceforge.net/ It includes two important features: 1. The fast c...
Friday, December 7, 2018

Principal component analysis

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Today I've learned about the existence of the Principal component analysis. It's supposed to find the orthogonal dimensions that bes...
Saturday, December 1, 2018

Triceps in flux

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I've finally updated my machine to a modern version of Linux (Mint 19), and now I'm going through, so to say, bringing Triceps into ...
Friday, November 23, 2018

converting EPS to SVG

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I've tried to build my book on a recent Linux Mint and failed: I've been using Ghostscript to convert the figures in EPS to the SVG ...
Wednesday, November 7, 2018

how to reinvent the bicycle 2

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I've been thinking more about the problem of teaching the engineering approach to problem solving , and I've decided to try using a...