Jarkko Sakkinen
Posts
4338Following
314Followers
451Entrepreneur at Siltakatu Solutions Oy
OpenPGP: 3AB05486C7752FE1
Jarkko Sakkinen
jarkko
Edited 7 months ago
to the monday gym, have got my weekly exercise routine back after some struggle ;-)
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Jarkko Sakkinen
jarkko
Edited 7 months ago
If Intel goes down, are there any other players than TSMC and Samsung doing semiconductors? That could have even geopolitical impact given their neighboring countries, close proximity of all manufacturing in the world etc.
IMHO that is pretty worrying situation, more even so than possibility of Intel going down.
Like for instance consider this. A single nuke could destroy the whole in the world within minutes with that physical topology.
IMHO that is pretty worrying situation, more even so than possibility of Intel going down.
Like for instance consider this. A single nuke could destroy the whole in the world within minutes with that physical topology.
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Jarkko Sakkinen
jarkko
I don’t get this Sudoku. How do I detach that display? The replacement is on left but there is like no attachment points in it.
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Jarkko Sakkinen
jarkko
Edited 7 months ago
One of the most useful purchases this year: rocket sockets. Could not live without:
https://peperspedals.bigcartel.com/product/rocket-sockets
https://peperspedals.bigcartel.com/product/rocket-sockets
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Jarkko Sakkinen
repeated
repeated
Thorsten Leemhuis (acct. 1/4)
kernellogger@fosstodon.org#sched_ext, which allows scheduling policies to be implemented as #BPF programs, has been merged for #Linux 6.12:
https://git.kernel.org/torvalds/c/88264981f2082248e892a706b2c5004650faac54
See https://lwn.net/Articles/922405/ for a description of what it does and https://lwn.net/Articles/972710/ for the controversy it caused that is the reason why it took so long to land in mainline.
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Jarkko Sakkinen
jarkko
"Three Mile Island, the site of worst nuclear disaster in the United States, is reopening and will exclusively sell the power to Microsoft as the company searches for energy sources to fuel its AI ambitions"
https://edition.cnn.com/2024/09/20/energy/three-mile-island-microsoft-ai/index.html
#microsoft #ai
https://edition.cnn.com/2024/09/20/energy/three-mile-island-microsoft-ai/index.html
#microsoft #ai
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Jarkko Sakkinen
jarkko
I wonder if there is a typst template for label writers such as Dymo LabelWriter 450, which I own. I use gLabels ATM but do not see any point in WYSIWYG and an address label.
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Jarkko Sakkinen
jarkko
This performance regression fix is as done as it can be:
https://lore.kernel.org/linux-integrity/20240921120811.1264985-1-jarkko@kernel.org/
As soon as it gets tags I'll put out a pull request. Not having the fixes can double the boot time at least on some AMD desktop CPU's if TPM bus encryption is turned on.
Without fix: 7s -> 20s
WIth the fix: 20s -> 8.7s
So pretty reasonable number, encryption cannot be done without any overhead. Patches fixup unnecessary encryption context throttling.
Hopefully next week when the cons are over there will be some feedback.
#linux #kernel
https://lore.kernel.org/linux-integrity/20240921120811.1264985-1-jarkko@kernel.org/
As soon as it gets tags I'll put out a pull request. Not having the fixes can double the boot time at least on some AMD desktop CPU's if TPM bus encryption is turned on.
Without fix: 7s -> 20s
WIth the fix: 20s -> 8.7s
So pretty reasonable number, encryption cannot be done without any overhead. Patches fixup unnecessary encryption context throttling.
Hopefully next week when the cons are over there will be some feedback.
#linux #kernel
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Jarkko Sakkinen
jarkko
Xenonauts 2 is a nice game, helps with Xcom withdrawal symptoms at least.
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Jarkko Sakkinen
jarkko
I got couple of days ago both email that my talk Linux Plumbers was both accepted and also that it was rejected 🤷 I guess there was something wrong with the mailer?
It would be nice to get infos a bit earlier and not in superposition state ;-)
@linuxplumbersconf
It would be nice to get infos a bit earlier and not in superposition state ;-)
@linuxplumbersconf
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Jarkko Sakkinen
jarkko
Julia is pretty cool language IMHO for doing workbook type of stuff like you would with Jupyter and all this "scientific Python" type of stuff. There's excellent support in the REPL cli for persistence with shared environments and projects. I think I replace bc and Python with Julia for being my main calculator app.
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Jarkko Sakkinen
jarkko
Edited 7 months ago
I tagged 0.1.0 of my TPM driver test framework: https://codeberg.org/jarkko/linux-tpmdd-test/src/tag/0.1.0
Now it pretty much can take care all testing and development needs I have. From this tag forward the Git history is also declared as stable (i.e. now rewrites).
It's also not that common example of using systemd with BuildRoot ;-)
Now it pretty much can take care all testing and development needs I have. From this tag forward the Git history is also declared as stable (i.e. now rewrites).
It's also not that common example of using systemd with BuildRoot ;-)
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Jarkko Sakkinen
jarkkoI ended up with:
ftrace {
event.kprobes {
tpm_transmit {
filters = "common_pid < 2"
probes = "tpm_transmit"
hist {
keys = stacktrace
}
}
}
}
kernel {
trace_buf_size = 1M
trace_options = sym-addr
}
It gives me counts of stack exercised during the boot. I’d like to get latency calculation but I’m not really good at this so this can do for the time being.
The is held in /sys/kernel/debug/tracing/events/kprobes/tpm_end/hist.
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Jarkko Sakkinen
jarkko
Edited 7 months ago
I voted in the Linux Foundation TAB elections.
Since it is politics I can tell that my top three was Dan Williams, Dave Hansen and Kees Cook and for the rest I gave equal vote.
Since it is politics I can tell that my top three was Dan Williams, Dave Hansen and Kees Cook and for the rest I gave equal vote.
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Jarkko Sakkinen
repeated
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Matthew Miller
mattdm@hachyderm.ioWow! Fedora Linux 41 beta today, _and_ twelve years at Red Hat for me!
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