Subject: Re: [linux-audio-dev] DRI + Jack conflict?
From: Chris Pickett (chris.pickett_AT_mail.mcgill.ca)
Date: Tue Feb 10 2004 - 23:51:54 EET
Paul Davis wrote:
>>On Mon, Feb 09, 2004 at 07:32:35PM -0500, Paul Davis wrote:
>>
>>>its a basic problem with real time software, the POSIX API etc.
>>>JACK tries to lock *all* the process memory.
>>
>>This is to ensure that nothing gets swapped out, right ?
>>Else it is very hard to ensure real time performance ?
>>(sorry for being somewhat ignorant in this matter).
>
>
> well, swapping is one aspect. page faults are the other. either way,
> yes, we need to ensure that real-time code is never stalled waiting
> for data to be bought into memory from disk storage.
What are the factors influencing the amount of memory the JACK process
needs?
Maybe it's possible to reduce it.
Unless I misread what you wrote and by "*all* the process memory" you
mean the memory of all processes on the system and not just JACK.
Chris
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