Make Linux Fast Again

#1

Post by Tomte » Thu, May 16, 2019, 11:59 AM UTC

Make Linux Fast Again
make-linux-fast-again.com

Re: Make Linux Fast Again

#2

Post by mikece » Thu, May 16, 2019, 12:36 PM UTC

The title makes me want to up-vote but when I click through the link all I see is "noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off mitigations=off"

Re: Make Linux Fast Again

#3

Post by mls-pl » Thu, May 16, 2019, 12:54 PM UTC

mikece wrote: post #2

The title makes me want to up-vote but when I click through the link all I see is "noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off mitigations=off"

These are just kernel flags - the interested will understand.

Re: Make Linux Fast Again

#4

Post by paule89 » Thu, May 16, 2019, 1:58 PM UTC

mikece wrote: post #2

The title makes me want to up-vote but when I click through the link all I see is "noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off mitigations=off"

Well would also love more explanation, but it kind of seems enough

Re: Make Linux Fast Again

#5

Post by Tomte » Thu, May 16, 2019, 3:01 PM UTC

mikece wrote: post #2

The title makes me want to up-vote but when I click through the link all I see is "noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off mitigations=off"

It's the kernel flags that you use for disabling all the Spectre/Meltdown/whatever mitigations that are slowing Linux down by a lot.

For single-user computers this is a useful and sensible option.

Re: Make Linux Fast Again

#6

Post by lemmster » Thu, May 16, 2019, 8:53 PM UTC

To what kernel release(s) do the flags apply?

Re: Make Linux Fast Again

#7

Post by tobias2014 » Fri, May 17, 2019, 1:17 AM UTC

How much will I gain on my desktop if I set those? What do they do individually?

Re: Make Linux Fast Again

#8

Post by cstamas » Fri, May 17, 2019, 9:57 AM UTC

lemmster wrote: post #6

To what kernel release(s) do the flags apply?

Need to check in your distro kernel. For example, current kernel on Linux Mint (is Ubuntu based distro, so I guess Ubuntu as well) has this changelog: http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/li... and as you see, it is backported and supported.

Re: Make Linux Fast Again

#9

Post by cstamas » Fri, May 17, 2019, 9:59 AM UTC

Are all these really need? According to this https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux... to me sounds like only "mitigations=off" is the one is needed, no?

Re: Make Linux Fast Again

#10

Post by cstamas » Fri, May 17, 2019, 1:43 PM UTC

cstamas wrote: post #9

Are all these really need? According to this https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux... to me sounds like only "mitigations=off" is the one is needed, no?

By checking sysfs reporting, the mitigations=off and all those from URL above ends up in same results.