Con Kolivas [interview] released 2.6.4-ck2, adding in his new staircase scheduler [story], as well as an experimental port of grsececurity.

Read on for the full feature list and changelog.

From: Con Kolivas [email blocked]
To: linux kernel mailing list [email blocked]
Subject: 2.6.4-ck2
Date: Sat, 27 Mar 2004 02:49:36 +1100

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Updated my patchset:
These are patches designed to improve system responsiveness and add features 
with specific emphasis on the desktop.

http://kernel.kolivas.org

Full feature list:
am
 Autoregulates the virtual memory swappiness.
domains
 Sched_domains support for better hyperthreading and SMP support including my
 smt nice changes
stair
 A complete scheduler policy rewrite for interactivity and responsiveness
batch
 Batch scheduling.
iso
 Isochronous scheduling.
cfqioprio
 Complete Fair Queueing disk scheduler and I/O priorities
schedioprio
 Set initial I/O priorities according to cpu scheduling policy and nice
sng204
 Supermount-NG v2.0.4
bs314
 Bootsplash v3.1.4
reiser4
 Reiser4 filesystem
cddma
 DMA for cd audio
grsec
 Greater security (not included in default patch). 


Changelog
Additions:
+ Staircase scheduler - my complete scheduler policy rewrite for interactivity 
built on top of the current O(1) scheduler
+ CD audio DMA
+ Grsec (optional only in experimental dir as it breaks compile if disabled)

Changes:
~New batch scheduling (idle scheduling) policy from scratch based on new 
scheduler is much simpler and less prone to system starvation issues
~New isochronous scheduling (low latency, non real time scheduling for 
non-privileged users)
~Updated sched_domains
~Updated bootsplash v3.1.4
~Updated reiser4 snapshot (2004.03.25)

Unchanged:
Autoregulated vm swappiness
Supermount-NG v 2.0.4
CFQ I/O scheduler with I/O priority support.


This is my parting gesture as I'll be on extended leave from 31st March till 
the end of May.

Con
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From: Malte Schröder <Malte.Schroeder@hanse.net>
Subject: Re: 2.6.4-ck2
Date: Fri, 26 Mar 2004 19:10:11 +0100

I was experiencing "skips" in video while playing mpeg4-video with mplayer 
over a DVB-S-card (that means on-the-fly transcoding from mpeg4 to mpeg1) on 
kernel 2.6.4 with -ck1-patch. I thought it was a problem with mplayer, but it 
went away when I tried -ck2 :)
Nice work.

---------------------------------------
Malte Schröder
[email blocked]
ICQ# 68121508
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• Archive of above thread
• KernelTrap interview with Con Kolivas