Tag Archives: raspberrypi

Meltdown and Spectre Mitigation removal

Posted on June 23, 2021 by Giovanni Giorgi
Some time ago I stumbled upon this Hacker News discussion on how disable Spectre mitigation. (For what Meltdown and Spectre is, refer to this article on 2018) It is sad to say but my Intel NUC centrino was slowed down … Continue reading →
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Commodore 4194304 is here: Rasperry Pi 400

Posted on November 2, 2020 by Giovanni Giorgi
Rasperry Pi Trading announced the RasperryPi 400, a whoppy 1.8 Ghz x 4Gb RAM (about 4096Mb or 4.194.304 Kb) Rasperry in a plastic keyboard case. We just read a teardown, and only the lack of a good mechanical keyboard leave … Continue reading →
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Pi-Hole: per la privacy a casa

Posted on January 31, 2020 by Giovanni Giorgi
Se vi dicessi che il 20% delle comunicazioni che il vostro smartphone attua per consentirvi di usare Whatupp o leggere il giornale è verso i server pubblicitari di google, facebook, amazon, come reagireste? Questo è un articolo divulgativo su uno … Continue reading →
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Ansible rulez!

Posted on November 14, 2019 by Giovanni Giorgi
In the last weekend I needed to restore my RasperryPi service box. It is a raspberrypi 2 which mostly make backups of my blogs. Its microSD card gets corrupted, forcing me a full reinstall. I decided to try to make … Continue reading →
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Docker Shadow of Lights on Raspberry Pi 2/3

Posted on May 21, 2018 by Giovanni Giorgi
Cloud, DevOps, and Microservices are three strong forces are melting together. Containers is the key technology around them. Before docker, horizontal scaling via VM spinning was feasible but a slow speed, compared to the speed of a docker container boot. So … Continue reading →
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Meltdown and Spectre

Posted on February 1, 2018 by Giovanni Giorgi
Meltdown and Spectre are two big vulnearbilities found in Intel and AMD chips out of there. The vulenarbility is so huge it affects up to 1995 chips. On the raspberrypi, there is a very nice explanation of what Meltdown is. … Continue reading →
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RaspberryPI life extender: tmpfs

Posted on July 15, 2016 by Giovanni Giorgi
To increase performance and SD life of your raspberry PI 2/3, you can follow my first article on this subject. You can easily increase even more the SD life if you can trade a bit of RAM. The key idea … Continue reading →
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