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Linux kernel hacker and maintainer etc.

OpenPGP: 3AB05486C7752FE1
jarkko

Jarkko Sakkinen

Reply to @jstultz@fosstodon.org
@jstultz I'll check all tracing tools and debuggers as they come by :-) QA is fun!
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jstultz@fosstodon.org

John Stultz

(speaking for myself here) One of the cooler things about Google is getting just the slightest glimpse of the power of some of the tooling your wizard coworkers use.

https://perfetto.dev/ is one of those very cool tools. It's like kernel shark, but has really powerful SQL capabilities. It's well configured for use with Android and CrOS, but with classic Linux environments it can be a little daunting. So here are my notes on using it for upstream kernel development: https://gist.github.com/johnstultz-work/0ec4974e0929c4707bfd89c876ae4735

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jarkko

Jarkko Sakkinen

Reply to @yassie_j@labyrinth.zone
Edited 1 year ago
@yassie_j Have to say tho that I've only worked with super smart people from India so AGI ("A Guy from India") must/will be great :-)
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jarkko

Jarkko Sakkinen

Reply to @yassie_j@labyrinth.zone
Edited 1 year ago
@yassie_j Have to say tho that I've only worked with super smart people from India so AGI ("A Guy from India") must/will be great :-)
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jarkko

Jarkko Sakkinen

Reply to @liw@toot.liw.fi
@liw in computing i tend to prefer cache hits, in real life cache misses
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liw@toot.liw.fi

Lars Wirzenius

In colloquial computing Finnish the work for a cache is "kakku", because it's similar in pronunciation. Kakku means "cake". Thus, in Finnish people ask each other how much cake their CPU has.

Language is funny.

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jarkko

Jarkko Sakkinen

after quitting consumer social media i found this site again: https://thedailywtf.com/articles/totally-valid
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jarkko

Jarkko Sakkinen

... Finland making to the EBU finals ;-)
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mroach@mas.to

Mike

Edited 1 year ago

Windows NT guy here supporting Windows95Man in

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jarkko
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andypiper@macaw.social

Andy Piper

Co-authored an update from the @MastodonEngineering team with my friend @renchap - a sneak peek at what is coming in 4.3 (and looking ahead from there). We'll aim to make these updates a regular feature for the blog. Let us know what you think! https://blog.joinmastodon.org/2024/05/trunk-tidbits-april-2024/

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jarkko

Jarkko Sakkinen

Reply to
@aks @doskel +1
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jarkko

Jarkko Sakkinen

Reply to @AmpBenzScientist@qoto.org
@AmpBenzScientist @lupyuen thanks will check it!
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jarkko

Jarkko Sakkinen

Reply to @jarkko
And neither I'm against AI, I'm critical towards the business practices and fair use. It is not very intellectual take sides on tech itself but more like how it is applied and controlled.
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jarkko

Jarkko Sakkinen

Reply to @jarkko
Edited 1 year ago
No need to be perfect. I've quit everything that I don't actually need for anything.
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jarkko

Jarkko Sakkinen

Edited 1 year ago
IMHO, good way to protest against bully business practices of AI: exit the most consumer oriented social media. I think it was good time finally quit Facebook fully given the trends. I'm not perfect. I.e. I have still some commercial social media like Slack, Youtube and BlueSky but at least the most heated stuff is gone, or I never was there anyway.

E.g. I think I continue to build my career without LinkedIn, and find the jobs that fit me better through traditional methods of job finding (talking to friends, getting contacted by friend, sending queries and the usual). It is time to go #offtheradar :-)
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jarkko

Jarkko Sakkinen

gym week #3
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kernellogger@fosstodon.org

Thorsten Leemhuis (acct. 1/4)

Edited 1 year ago

The Kernel Report - Jonathan Corbet (@corbet), @LWN

The recording of this recent talk is now available on the schedule page: https://ossna2024.sched.com/event/1aBNs/the-kernel-report-jonathan-corbet-lwnnet

Slides can be found here: https://static.lwn.net/talks/2024/kr-ossna.pdf

Direct link to the recording: https://www.youtube.com/watch?v=DAqjl_x4hZc

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jarkko

Jarkko Sakkinen

Browsing without account:

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jarkko

Jarkko Sakkinen

Reply to @jarkko
Edited 1 year ago
@lupyuen You can do memory protection also with RISC-V without MMU by configuring so called Physical Memory Protection (PMP) registers in M-mode and running applications in U-mode. So it is memory protection based on physical memory partitioning instead of virtual memory. RISC-V would be a good platform for product low-cost but still quite secure products.

EDIT: Oops, meant to write U-mode, S-mode is one that exists when there is an MMU :-)
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jarkko

Jarkko Sakkinen

Reply to @lupyuen@qoto.org
@lupyuen I have one SBC for RISC-V (VisionFive2) but would be nice to get one MMUless SBC too (i.e. without S-mode). I.e. kind of RISC-V "arduino".
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