[linux-audio-user] realtime problems

[Bill Allen]

Dave Phillips wrote:
> Atte André Jensen wrote:
>
>>> with 1000hz clock and others things ;)
>>
>>
>> Hmm, is that essential? What will that do?
>>
>> atte at ajstrup:/boot$ grep HZ config-2.6.15-26-386
>> # CONFIG_HZ_100 is not set
>> CONFIG_HZ_250=y
>> # CONFIG_HZ_1000 is not set
>> CONFIG_HZ=250
>> CONFIG_MACHZ_WDT=m
>
> The 1000 Hz setting audibly improves MIDI event timing, at least to my 
> ears. 250 Hz is really not good enough.
>
> Best,
>
> dp
>
>
>
That is very true. Ubuntu changed this setting from 1000 to 250 during 
dapper development between 2.6.15_18 and 2.6.15_19. I have kept a 
version of the 2.6.15_18 kernel around just for audio work. I have no 
idea why the change.

Regards,
Bill