2.4.x, patches and latencies

2.4.x, patches and latencies

[Jussi Laako]

Hi,

Finally I got the my system back to 2.4.12-ac3-ll level latencies and
smoothness and it's in fact performing significantly better.

See http://www.pp.song.fi/~visitor/latencytest5/3x256.html for latency
results. (Sound driver is OSS 3.9.5f)

Patches used against 2.4.17 are:

 - Andre's IDE patch
 - Rik's rmap-11b
 - Ingo's O(1)-H6
 - Andrew's full lowlatency
 - My additions to lowlatency

Now I'm quite happy with this!


	- Jussi Laako

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Re: 2.4.x, patches and latencies

[Jussi Laako]

Roberto Nibali wrote:
> 
> Could you please post this as a unified diff against 2.4.17 on your
> webpage, so others can test it too?

OK, it's now available at:
http://www.pp.song.fi/~visitor/dlbins/2.4.17-jl7-ll.patch.bz2


	- Jussi Laako

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Re: 2.4.x, patches and latencies

[Jussi Laako]

Jussi Laako wrote:
> 
> Roberto Nibali wrote:
> >
> > Could you please post this as a unified diff against 2.4.17 on your
> > webpage, so others can test it too?

I made a web page for my kernel patch combinations. Aimed primarily for low
latency use.

http://www.pp.song.fi/~visitor/linux/

Latest 2.4.17-jl11 contains:

 - Andre's ide driver update
 - Lionel's SiS ide driver update
 - ALi ide fix
 - Small AGP fix
 - Updated VIA KT133/KT266 fix
 - Rik's rmap-11c
 - Ingo's sched-O1-J2

-jl11-mini also contains:

 - mini-ll patch

-jl11-ll also contains:

 - full lowlatency patch
 - my DRM lowlatency patch


Best regards,

	- Jussi Laako

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Re: 2.4.x, patches and latencies

[G . Sumner Hayes]

On Sat, Jan 19, 2002 at 02:45:27PM +0200, Jussi Laako wrote:
> I made a web page for my kernel patch combinations. Aimed primarily for low
> latency use.
> 
> http://www.pp.song.fi/~visitor/linux/
> 
> Latest 2.4.17-jl11 contains:
> 
>  - Andre's ide driver update
>  - Lionel's SiS ide driver update
>  - ALi ide fix
>  - Small AGP fix
>  - Updated VIA KT133/KT266 fix
>  - Rik's rmap-11c
>  - Ingo's sched-O1-J2
[SNIP]
> -jl11-ll also contains:
> 
>  - full lowlatency patch
>  - my DRM lowlatency patch

FWIW, I just built this and did a kernel compile+updatedb+xmms
test.  Normally (Red Hat's  2.4.7), xmms skips like mad under those
circumstances, with this patch it didn't skip at all.  And system "feel"
is good.

Not scientific numbers, and maybe not all that useful given the
huge number of variables in the patch, but I figured I'd throw it
out here.

Thanks for putting this patch up, Jussi.

  Sumner