[LAU] Real Time Kernel best settings

[Geoff Beasley]

On Sunday 14 October 2007 11:06:43 holborn wrote:

> --- Enable the block layer
>                       [ ]   Support for Large Block Devices
>                       [ ]   Support for tracing block io actions
>                       [ ]   Support for Large Single Files
>                       [ ]   Block layer SG support v4 (EXPERIMENTAL)

i think these only apply if you're going to be using large file sizes. => 
2gig. but i could be wrong.

> IO Schedulers  --->

i tend to use the deadline but there's probably not a lot of difference. again 
no expert so more info could be valuable.

> Processor type and features  --->
> HPET Timer Support

i find this essential for good low latency operation and stability.

> Device Drivers  --->
> Character devices  --->
> <*> Enhanced Real Time Clock Support

needed.

> [ ] Real Time Clock Histogram Support

only for debuging; turn it off.

> <*> Priority Inheritance Debugging (Blocker) Device Support

piss this off ! for debugging only and  i have seen this take an interupt.

>  [ ] HPET - High Precision Event Timer

 i always enable this and 'allow mmap' below it.

> Sound  --->
> Advanced Linux Sound Architecture  --->
>  <M>   RTC Timer support
> [*]     Use RTC as default sequencer timer

 i don't use alsa in the kernel so i can't comment.

g.