[PlanetCCRMA] jack memory leak?

[Mark Knecht]

Steve,
   I left the machine with jack running overnight. The memory usage (as
displayed by top) this morning (7AM) is now 260556K, up from about 85000K
yesterday when I left the office at 4PM. No other 'applications' are
running. Obviously lots of other 'stuff' is running.

   If this memory usage is disk buffers, how might I be able to determine
that? Is there any way to tell Linux to return 'unused' memory, or
specifically to return the memory in these disk buffers? Seems like there
should be some sort of 'invalidate cache' command.

   I'm sure Linux probably did something over night that used the disk, but
I didn't. It could simply be some cron job I suppose. If I was to run some
huge application that took a gigabyte of memory, and then closed that app,
would the memory get used and then returned and my system go back to boot
levels? Or would that app stay cached and top tell me that all of my memory
is used?

   None of the process entries in top appear to have changed size, including
jack.

   Again, I'm not concerned, but would like to be able know what is causing
this.

Thanks,
Mark

-----Original Message-----
From: planetccrma-admin@ccrma.Stanford.EDU
[mailto:planetccrma-admin@ccrma.Stanford.EDU]On Behalf Of Steve Harris
Sent: Wednesday, November 13, 2002 3:38 PM
To: PlanetCCRMA (E-mail)
Subject: Re: [PlanetCCRMA] jack memory leak?


On Wed, Nov 13, 2002 at 01:36:10 -0800, Mark Knecht wrote:
> Hi,
>    I'm early in looking for this, but wondered if anyone else has seen any
> evidence of jack having a memory leak? I've noticed over the course of a
day
> or two that memory is getting used up and not released, at least according
> to 'top'. In most of those cases I've run lots of applications and
couldn't
> say who the culprit was, and I still really can't.

The memory "Used" in top includes the disk buffers, it should grow to
nearly your physical ram if the mahine is left on.

- Steve
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