Monday, March 28, 2016

Digest for comp.programming.threads@googlegroups.com - 10 updates in 6 topics

bleachbot <bleachbot@httrack.com>: Mar 27 06:03PM +0200

bleachbot <bleachbot@httrack.com>: Mar 27 06:11PM +0200

bleachbot <bleachbot@httrack.com>: Mar 27 11:12PM +0200

bleachbot <bleachbot@httrack.com>: Mar 27 11:50PM +0200

bleachbot <bleachbot@httrack.com>: Mar 28 12:13AM +0200

Ramine <ramine@1.1>: Mar 27 06:17PM -0700

Hello....
 
 
Please read more the following about USL...
 
I have just included a windows executable called usl.exe
of my USL for Delphi and FreePascal inside the zip to easy
the job for you...
 
Please read the readme file inside the zip to understand how
to use it...
 
So hope that you will be happy with it..
 
It is a very important and very powerful tool that predict scalability
and that allow you also to optimize more efficiently the criteria of
cost of your multicores systems etc.
 
 
You can download the windows executable and the source
code of my USL for Delphi and FreePascal from:
 
https://sites.google.com/site/aminer68/universal-scalability-law-for-delphi-and-freepascal
 
 
Thank you,
Amine Moulay Ramdane.
Ramine <ramine@1.1>: Mar 27 05:54PM -0700

Hello...
 
 
Why i have posted my USL or Delphi and FreePascal in this group ?
 
Because it is a tool as a program that you must compile with FreePascal
into an executable without the need to download
and learn R language, because the only other tool that
you will find that do my USL for Delphi and FreePascal job is
this R package:
 
http://www.inside-r.org/packages/cran/usl/docs
 
 
So i have brought you a second and new tool that do
the job without needing to install the R statistical software.
 
 
So please download my software here:
 
https://sites.google.com/site/aminer68/universal-scalability-law-for-delphi-and-freepascal
 
And download FreePascal to compile it as an executable from here:
 
http://www.freepascal.org/
 
 
 
Thank you,
Amine Moulay Ramdane.
Ramine <ramine@1.1>: Mar 27 05:16PM -0700

Hello,
 
 
More about my USL for Delphi and FreePascal...
 
I have just tested more my USL for Delphi and FreePascal
and it is working perfectly. But to make it work best
with multicores, you have to choose the first column of the number
of cores of the csv to: 1,2,4,8,16 without going up to 32 and
it will work ok, don't choose 1,2,3,4,5 because this will not be a good
approximation and this will cause problems.
 
 
You can download my USL for Delphi and FreePascal from:
 
 
https://sites.google.com/site/aminer68/universal-scalability-law-for-delphi-and-freepascal
 
 
Thank you,
Amine Moulay Ramdane.
Ramine <ramine@1.1>: Mar 27 12:14PM -0700

Hello...
 
I correct, please read again...
 
Hope you have read my previous post..
 
And here is an important thing about a USL benchmark..
 
Read here:
 
https://www.vividcortex.com/blog/2015/11/13/capacity-planning-with-usl/
 
And read about the benchmark:
 
https://www.percona.com/docs/wiki/benchmark:cisco:scale:start
 
And here is the server configuration:
 
https://www.percona.com/docs/wiki/benchmark:hardware:cisco_ucs_c250
 
 
As you have noticed this guy have used USL to predict
scalability, but i don't think he is right, because
the performance data comes from also hyper-threading,
because the performance data goes up to 32 threads,
so because there is a mix of hyper-threads and threads,
so this have caused USL to not predict correctly the
peak scalability etc. because the regression
can not extract the right information in this scenario,
so you have for example to benchmark with up to 12 thread
to avoid hyper-threading.
 
 
 
Thank you,
Amine Moulay Ramdane.
Ramine <ramine@1.1>: Mar 27 12:06PM -0700

Hello,
 
 
Hope you have read my previous post..
 
And here is important thing about a USL benchmark..
 
Read here:
 
https://www.vividcortex.com/blog/2015/11/13/capacity-planning-with-usl/
 
And read about the benchmark:
 
https://www.percona.com/docs/wiki/benchmark:cisco:scale:start
 
And here is the server configuration:
 
https://www.percona.com/docs/wiki/benchmark:hardware:cisco_ucs_c250
 
 
As you have noticed this guy have used USL to predict
scalability, but i don't thing he is right, because
the performance data comes from also hyper-threading,
because the performance data goes up to 32 threads,
so because there is a mix of hyper-threads and threads,
so this have caused USL to not predict correctly the
peak scalability etc. because the regression
can not extract the right information in this scenario,
so you have for example to benchmark with up to 12 thread
to avoid hyper-threading.
 
 
 
Thank you,
Amine Moulay Ramdane.
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