changelogs for 2.4.17rc2aa2 and 2.2.20aa1

changelogs for 2.4.17rc2aa2 and 2.2.20aa1

[rwhron]

I put together these pages to help others understand 
what is in Andrea's kernels a little better.

http://home.earthlink.net/~rwhron/kernel/2.4.17rc2aa2.html
http://home.earthlink.net/~rwhron/kernel/2.2.20aa1.html

The pages are created from his patch diff logs.

I've stress tested and benchmarked 2.4.17rc2aa2 a lot and 
it's been very solid.  For a workload that creates a lot
of processes 2.4.17rc2aa2 has a definite edge.  This is
easiest to see in a couple unixbench tests:


                              2.4.17-mjc1  2.4.17rc2aa2   2.5.1-dj10
System Call Overhead             352361.7     362120.5    255809.4 lps
Process Creation                    817.5       2037.7      1212.0 lps
Execl Throughput                    265.8        458.4       316.5 lps

And lmbench; the highest and lowest results of 3 runs were dropped.

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
OS           fork exec sh
             proc proc proc
------------ ---- ---- ----
2.4.17rc2aa2  745 2769 9583
  2.5.1-dj10  810 3504 11.K
 2.4.17-mjc1 1128 4244 12.K

Good stuff comes from a lot of sources, and I'm hoping some of
the tree maintainers will start cherry picking from Andrea's 
tree too.  :)

Note: mjc1 above was configured without preempt, rtsched
or lockbreak.

2.4.17rc2aa2 consistently does better at dbench too.
More results are at:
http://home.earthlink.net/~rwhron/kernel/repo.html

-- 
Randy Hron

Re: changelogs for 2.4.17rc2aa2 and 2.2.20aa1

[Dave Jones]

On Wed, 2 Jan 2002 rwhron@earthlink.net wrote:

> More results are at:
> http://home.earthlink.net/~rwhron/kernel/repo.html

Consider it bookmarked  8)
I hope you can find the time to keep up these tests,
as they should start to show some even more interesting
results as the various trees progress.

-- 
| Dave Jones.        http://www.codemonkey.org.uk
| SuSE Labs

Re: changelogs for 2.4.17rc2aa2 and 2.2.20aa1

[Jens Axboe]

On Thu, Jan 03 2002, Dave Jones wrote:
> On Wed, 2 Jan 2002 rwhron@earthlink.net wrote:
> 
> > More results are at:
> > http://home.earthlink.net/~rwhron/kernel/repo.html
> 
> Consider it bookmarked  8)
> I hope you can find the time to keep up these tests,
> as they should start to show some even more interesting
> results as the various trees progress.

I'll second that, very nice that someone takes the time to do this.

-- 
Jens Axboe