Linux CPU Mitigations - Performance Impact for older AMD CPUs | Linux Mint 19.3

Опубликовано: 06 Январь 2020
на канале: Egee's Hobbies

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How much do the Linux CPU Mitigations such as Meltdown & Spectre affect older AMD CPUs like A-series and FX-series?

This is technically Brunchmarks season 2 episode 1 but there's no way I could fit that into the title of the video ^_^.

I opted to test on Linux Mint 19.3 because I already had it installed on my test rig for Distro Delves season 2 episode 2. Linux Mint is a derivative of Ubuntu anyway so its practically the same, right?

This video only tests AMD CPUs, specifically older ones - A series & FX series processors. Ryzen & Intel CPUs weren't tested simply because I don't have any.

I was sick with the flu when I recorded the voice over for this video and I reused some footage from that Distro Delves episode. Sorry for the overall quality of the video - I was expecting to see more of a performance difference. Since there was hardly any, there wasn't much to show in the video.

Here's the guide I followed to disable the mitigations - https://linuxreviews.org/HOWTO_make_L...

Here's Speed47's vulnerability checker - https://github.com/speed47/spectre-me...

Please do not disable CPU mitigations without understanding the risks! Read this before you test it - https://ubuntu.com/blog/meltdown-spec...

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