jason_wo

6 ms·

1.
by jason_wo 3y ago
As far as I know the LMAX disrupter is a kind of queue/buffer to send data from one thread/task to another. Typically, some of the tasks run on different cores. The LMAX disruptor is designed such that there is no huge delay due t
2.
by jason_wo 3y ago
How do you insert into DuckDB fast and what settings ("Indices") do you use? As far as I understand DuckDB builds up statistics for each "block" of data (number of different values, ... ). So I assume inserting is slow.
3.
by jason_wo 3y ago
Linear Temporal Logic looks very interesting to specify invariant of a system and monitor them at runtime. I guess this is called monitoring. So you can check if your system behaves as expected and e.g. issue an alert if it fails. There is
4.
Ask HN: Secure and simple way for secret/credential management in a startup?
42 points by jason_wo 4y ago|32 comments
5.
by jason_wo 4y ago
This sounds very cool! How does it work technically? I have checked your website but I am still not sure. How do I "buy" the instances using usage.ai instead of AWS? Do you need additional tooling or does it work with awscli/
6.
by jason_wo 4y ago
Nice! Do I understand this correctly? You use aws-vault( https://github.com/99designs/aws-vault ) and configure it with IAM and MFA with YubiKeys. You configure e.g. the profile jonsmith. When you run aws-vault exec jons
7.
by jason_wo 4y ago
I'am honest, similar things could happen on my laptop for my personal stuff. I have some AWS keys in some files that are used by terraform/packer. A hacker could easily get them. Some other AWS keys are stored in the CI system and
8.
by jason_wo 4y ago
> Long story short if I had money that would be relevant in this context I would invest really hard into Tenstorrent. I would happily accept a bet (e.g. $100 bucks or a nice bottle of whiskey) from you (or anyone) that atomicsemi is succ
9.
by jason_wo 4y ago
Very interesting. Thanks for the link to the paper. Isn't the provided paper "just" about the scheduler? Eventually, I would have to output some data, e.g. on the CAN bus with socketcan through the network stack. This is prob
10.
by jason_wo 4y ago
Yes you are correct. I am currently having a project, making Linux "as real-time as possible": locking memory with mlockall, isolating cores, preempt kernel patch, .... It is still not real-time because you have no guarantees, but
11.
by jason_wo 4y ago
I just found this presentation with technical details: https://group.mercedes-benz.com/dokumente/investoren/praesen... I guess it is not a typical OS, but more like a collection of tools that build on already exis
12.
by jason_wo 4y ago
The Tableau algorithm is patented. In particular, the algorithm that chooses the type of the chart depending on the properties of the data. It was developed under the name Polaris at MIT (?). A few patent applications were accepted in the U