Re: [linux-audio-user] realtime problems

From: Bill Allen <lau@email-addr-hidden>
Date: Tue Aug 08 2006 - 04:16:56 EEST

Dave Phillips wrote:
> Atte André Jensen wrote:
>
>>> with 1000hz clock and others things ;)
>>
>>
>> Hmm, is that essential? What will that do?
>>
>> atte@email-addr-hidden:/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
Received on Tue Aug 8 08:15:01 2006

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