Gaming kernel compiled at 1000 Hz instead of 100

[mitcoes]

I read at toms hardware article about ubuntu and MS WOS, that the MS Windows Operating System has its kernel compiled at 300 Hz while Ubuntu has its Linux kernel compiled at 100 Hz, and suggested that compiling the Ubuntu kernel at 300 Hz would be more fair to make the benchmarks.

But that if you compile the kernel at 1000 Hz or with some flags - I do not remember - It will be fast as hell.

Why not a Sabayon gamers kernel, not only for games, I suposse that for desktop performance and windows managers it would be good too. Even more when Wayland will be here.

And there must be other intermediate options as the MS WOS 300 Hz, or a 600 Hz one.

Thanks in advance

[Ramiliez]

Could you post link to that article?

[joost]

Not sure what you are talking about (imho it is "fast as hell" already), but look here perhaps:

Code: Select all

jruis@sabayon ~ $ cat /usr/src/linux/.config | grep HZ
# CONFIG_RCU_FAST_NO_HZ is not set
CONFIG_NO_HZ=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_MACHZ_WDT=m
jruis@sabayon ~ $ cat /usr/src/linux/.config | grep HIGH_RES_TIMERS
CONFIG_HIGH_RES_TIMERS=y

[mitcoes]

It was already done, thanks for the tip, I am more than a little bit ignorant here, but I think this things must be explained at the home page as a big advantage over other OSs.

Here is the link where i begin to learn about this - I use to read comments usually I learn more from them than from main articles -

http://www.tomshardware.com/reviews/ubu ... l#comments
Anonymous 02/13/2012 4:48 PM
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Talking about the results, I think Ubuntu won it's own share of tests versus Windows 7. Unfortunately, I think Ubuntu is one of the worst Linux distros out there to be tested, and it doesn't represent what REAL Linux is.

First of all, its kernel is really VERY unoptimized. Windows has a 300Hz tick ratio, whereas Ubuntu is configured with a more "server-alike" 100Hz tick ratio [try to use preemptible Ubuntu kernel with a 300Hz/1000Hz tick ratio (or CK's BFS) to see what's good for gaming and encoding/decoding tasks ]

Secondly, it's known that using compositing affects the performance of gaming with NVidia cards+Linux combo. You can find that evidence in Phoronix (a linux-friendly benchmarking site).

Finally, as Ubuntu is a 6-month release distro, and not a "rolling-release" one, some of their packages are already obsolete and might not reflect the performance of newer packages. So, as a suggestion for the next tests, I'd like to see some Linux vs Windows benchmarks with 2 different distros. One of them could be Ubuntu (as the worst-case scenario), the other one could be something more optimized like Arch Linux (I suggest ArchBang), Gentoo, or the more popular PCLinuxOS.

Cheers