Linux 6.8 Network Optimizations Can Boost TCP Performance For Many Concurrent Connections By ~40%

[Eudyptula]

Bsd нервно курит в сторонке...

Är det inte bättre att mejor hablar på engelsk så alle forstår hinanden?

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So now Linux is almost as fast as Windows, the BSDs and Mac Server?

It's about time!

When was Linux not faster than Windows?

As for BSD and Mac Server, I won't make any claims. Nonetheless, there's a reason why Linux is ubiquitous in the server market. It wouldn't be if performance was bad.

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I've exported the latest performance data between Mac Server, FreeBSD and Linux

What about source and reproducible testing methodology?

[coder]

I've exported the latest performance data between Mac Server, FreeBSD and Linux:

Mac Server,FreeBSD,Linux
2.3184948692385654,1.9480844463424631,1.3718904551707487
2.4640034227596925,2.0703460711945345,1.4579901909820665
2.157743477633959,1.8130152297279418,1.2767712885408042
1.4601746887013782,1.2268923419857733,0.8640086915392771
1.5515455203423232,1.3036654667965082,0.9180742723919072
2.392320518394106,2.0101154651595445,1.415574271239116
1.3517984214928331,1.1358306263430906,0.7998807227768244
1.2029730583252103,1.0107820963442595,0.711818377707225
1.9398176257780508,1.6299059340856994,1.1478210803420419
2.161199935439482,1.8159194723811032,1.2788165298458474
​

Make of it what you will, but I think Mac Server is demonstrably more performance as per above.

...da fuk?

Is that supposed to be some kind of joke? It's not very funny.

[sophisticles]

As for BSD and Mac Server, I won't make any claims. Nonetheless, there's a reason why Linux is ubiquitous in the server market. It wouldn't be if performance was bad.

I;m sure you have hard numbers to back up the claim as to Linux usage on servers.

[coder]

Here are some networking benchmarks by a Linux kernel developer, from ~5 years ago:

https://matteocroce.medium.com/linux-and-freebsd-networking-cbadcdb15ddd

Doesn't look good for FreeBSD, but maybe they've improved since? I wonder if anyone in the BSD community has published anything comparable, since then. Perhaps they know the tricks for coaxing more performance out of their favorite BSD flavor.


Anyway, here are some benchmarks Michael ran, back in 2021:

https://www.phoronix.com/review/bsd-linux-eo2021

[TheToad]

I wonder how this translate when using multiple VM and/or LXC.
Bare metal performance in nowadays aren't that important in most cases scenarios.

[npwx]

I;m sure you have hard numbers to back up the claim as to Linux usage on servers.

Can we please finally get a method to ignore this moron?

[aviallon]

I;m sure you have hard numbers to back up the claim as to Linux usage on servers.

That's a well-known fact... even Microsoft Azure has more Linux usage than all of the other operating systems combined.

[Volta]

So now Linux is almost as fast as Windows, the BSDs and Mac Server?

It's about time!

And yes I know that Mac Server is discontinued.

What?! Linux was always the most performant and FreeBSD was also good. Mentioning Windows and Mac Server is some kind of joke? They're nowhere near Linux TCP performance (and not only TPC). Some server benchmarks:

https://interworks.com/blog/tkau/2017/09/13/tableau-server-linux-performance-sneak-peek/

What I observed was a much quicker response from the Linux server compared to Windows. In some tests with lighter load, over half of the Linux response times were faster than the fastest response on Windows. This means where a user would normally wait about 2-4 seconds for the viz to load on Windows, the viz could be returned on Linux between 1-1.5 seconds. That makes it feel like browsing a normal website – nevermind the heavy analytical operations Tableau is handling behind the scenes.

Not that you should allow your Tableau Server to get overloaded, but one difference I noticed was related to memory usage and error rates. On Windows, when VizQL Server runs out of memory, the process crashes, throwing an error instead of returning the view for a user. On Linux, the memory management seems better – the process does not crash and the views load eventually (sometimes minutes later than they normally would).

http://dev.squaresolutions.net/pcaps/2019093/test03-h_upload_linux/test03-h_upload_linux-throughput.png

http://dev.squaresolutions.net/pcaps...throughput.png

it's not even funny, but make me wonder where did you came from?

[mdedetrich]

there's a reason why Linux is ubiquitous in the server market. It wouldn't be if performance was bad.

Empirically this is actually not a good reason for something being popular, i.e. just because its popular doesn't mean its fast. If you look into the history of Linux, especially in the late 90's/2000's era you will see that none of the reasons why Linux took off had to do with performance, and its definitely an objective fact that for example at that time Linux's network stack was demonstrably much slower than FreeBSD.

Of course now Linux has since caught up (its implemented many of the same techniques that FreeBSD did to improve their networking performance), but the point is while there were areas where Linux was faster than the competition (Linux's filesystem was famously much faster than the competition for most, if not all of its history which is not surprising because historically it tried to follow the "everything is either a process or a file" design as much as feasible which means that filesystem has to be fast) but the point is that this wasn't universally true of the OS.

[wangling]

Bsd нервно курит в сторонке...

Är det inte bättre att mejor hablar på engelsk så alle forstår hinanden?

Thank you for making me realize that the translation plugin supports both Russian, English, and Swedish well.