2.6.7-ck1

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Updated patchset.
These are patches designed to improve system responsiveness with specific emphasis on the desktop, but has scheduler changes suitable/configurable to any workload

http://kernel.kolivas.org

Summary of features:
- - staircase7.4 scheduler

- - batch scheduling

- - isochronous scheduling

- - autoregulated swappiness

- - autotuned vm page inactivation

- - supermount-ng

- - default cfq I/O scheduler

- - config hz

- - bootsplash v3.14

Changed:
- - Updated staircase scheduler. Significant bugfixes and improvements have been made to the staircase scheduler since v7 that was in 2.6.7-ck1 and updating is highly recommended. See separate announcement on lkml.

Added:
- - autotuned vm page inactivation
This extends the functionality of the autoregulated swappiness to now bias the active/inactive ratio according to the percentage of physical ram used by application pages. It has the effect of avoiding swap much more effectively, and drastically reducing the time spent in swap-thrash scenarios over and above the effectiveness of the autoregulated swappiness. The 2 are rolled into one sysctl which allows them to be disabled together (on by default) at /proc/sys/vm/autoregulate

- - default cfq i/o scheduler
Self explanatory

- - config hz
Self explanatory

- - bootsplash
See www.bootsplash.org

A full set of split-out patches are available with a series that can be used with the quilt application.

The FAQ on my web page have also been updated.

Comments, questions, suggestions welcome.

Cheers,
Con
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Of course that should have been ck2 :P

Con Kolivas wrote:

| Updated patchset.
| These are patches designed to improve system responsiveness with
| specific emphasis on the desktop, but has scheduler changes
| suitable/configurable to any workload
|
| http://kernel.kolivas.org
|
|
| Summary of features:
| - staircase7.4 scheduler
|
| - batch scheduling
|
| - isochronous scheduling
|
| - autoregulated swappiness
|
| - autotuned vm page inactivation
|
| - supermount-ng
|
| - default cfq I/O scheduler
|
| - config hz
|
| - bootsplash v3.14
|
|
| Changed:
| - Updated staircase scheduler. Significant bugfixes and improvements
| have been made to the staircase scheduler since v7 that was in 2.6.7-ck1
| and updating is highly recommended. See separate announcement on lkml.
|
| Added:
| - autotuned vm page inactivation
| This extends the functionality of the autoregulated swappiness to now
| bias the active/inactive ratio according to the percentage of physical
| ram used by application pages. It has the effect of avoiding swap much
| more effectively, and drastically reducing the time spent in swap-thrash
| scenarios over and above the effectiveness of the autoregulated
| swappiness. The 2 are rolled into one sysctl which allows them to be
| disabled together (on by default) at /proc/sys/vm/autoregulate
|
| - default cfq i/o scheduler
| Self explanatory
|
| - config hz
| Self explanatory
|
| - bootsplash
| See www.bootsplash.org
|
|
|
| A full set of split-out patches are available with a series that can be
| used with the quilt application.
|
|
| The FAQ on my web page have also been updated.
|
| Comments, questions, suggestions welcome.
|
|
| Cheers,
| Con

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Hi,

like in the other thread, I also think there is something fishy about staircase 7.4.

Now when I compile something int the backgorund (eg. xine-lib, without setting higher nice value) and work in kdevelop at the same time, here compiling takes "endless" (it finishes, but takes minutes for what should be done in seconds) time.

Revertung to staircase 7.3 (on ck1) it seems to be ok.

Hth

Prakash

[snip]

After some further tests I am not sure anymore about this. I did a recompile of xine-lib using staircase 7.3. At first everything seems to be normal, but nearly at the end of the compile, the system started to get into this blocking state:

I wnated to start a kedit and a konsole, but it took forever. Only afer the compile was done and the package actually gets emerge, both windows showed up. Hmmm, so I revert to staircase 7.1 and check it out...

Prakash