Re: Real Time Kernel best settings

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Geoff Beasley wrote:
> On Sunday 14 October 2007 11:06:43 holborn wrote:
>   
me also can only say what i have here, don't know if it is the best (but 
works good!)
>   
>> --- 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.
>   
think so too, i have the first option checked
>   
>> 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.
>   
i have checked them all and the cfq as default
>   
>> Processor type and features  --->
>> HPET Timer Support
>>     
>
> i find this essential for good low latency operation and stability.
>   
here too.
>   
>> Device Drivers  --->
>> Character devices  --->
>> <*> Enhanced Real Time Clock Support
>>     
>
> needed.
>   
yes..
>   
>> [ ] 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.
>   
me too, both options on...
>   
>> Sound  --->
>> Advanced Linux Sound Architecture  --->
>>  <M>   RTC Timer support
>> [*]     Use RTC as default sequencer timer
>>     
>
>   
this is exactly as it is looking here too!
>  i don't use alsa in the kernel so i can't comment.
>
> g.
> _______________________________________________
>   
very interesting thread, it would be good if we continue and other 
people put their experiences and uncleared questions here!

cheers,
doc

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