Web Performance Matters - Comments

Turbo Pascal programmer comments on Why Moore's Law is Irrelevant

Turbo Pascal programmer — Mon, 30 May 2011 09:58:49 +0000

"...the software product that first made Borland famous in the early 1980's was Turbo Pascal, a lightning-fast compiler for Pascal, the programming language that Niklaus Wirth himself invented..."

Well, Turbo Pascal is still alive...

martin comments on Asynchronous Architectures [4]

martin — Tue, 03 May 2011 09:00:26 +0000

thanks for sharing these notes they really helped my i want to share them on my website too
Cursos de ingles en el extranjero

fulfulment house comments on Latency, Bandwidth, and Response Times

fulfulment house — Mon, 28 Mar 2011 11:00:59 +0000

Charles is throttling the network connection to simulate different network latency and bandwidth conditions. Experiment with different values to see the impact on page load performance.

Studies show that if the end user has bandwidth of 5Mbps or more then extra bandwidth doesn't make any difference to page load times as latency is the limiting factor

Phil Marks comments on Why Moore's Law is Irrelevant

Phil Marks — Fri, 29 Oct 2010 22:57:31 +0000

2010, almost 2011. Wirth's law still going. And it's amazing the number of «experts» who dont know it, and worst, who dont understand why our computers still hang, crash and stop responding. SOFTWARE STILL SUCKS.

Web Performance Engineering comments on Four Laws of Web Site Performance

Web Performance Engineering — Thu, 28 Oct 2010 15:00:15 +0000

It is amazing that this article is about 3 years old and still has relevant information. Great work!

Christina comments on Measuring Mobile Web Sites

Christina — Fri, 22 Oct 2010 19:44:05 +0000

Another way to track your page loading and performance is with this great $5 app I use as a supplement to all my development efforts is this iPhone app called "Are We Up?". Like I said, it's $5 annually and provides you with unlimited texts/emails notifications about your site. I have been really happy with this service. You can purchase it on iTunes.com or on fiverr.com: http://www.fiverr.com/users/johndesp/gigs/monitor-you-web-site-for-a-year-and-send-you-email-text-message-and-phone-call-alerts-if-its-down

Michael Notté comments on Measuring Mobile Web Sites

Michael Notté — Wed, 16 Jun 2010 09:01:27 +0000

Hi Chris,

Just found out your post and I wanted to thank you for the comments about my blog and the post. Really happy to see it is helpful and that it is shared by others.

Cheers,

Michael

Scott Barber comments on Measuring Mobile Web Sites

Scott Barber — Tue, 15 Jun 2010 16:36:06 +0000

I'm glad to see some folks finally writing about this. Of course I'm a bit sad (but not surprised) to see that things really haven't advanced very much since Chris Walters and I wrote on the topic in 2002 (Automated Testing for Embedded Devices).

I guess that's why I'm still having a lot of success with projects in the wild world of wireless & mobile applications. Lucky for me, but my expectations for how far we'd have come by now in this area were far greater than what I see, so I'm not sure it's so lucky for the typical mobile web user.

Scott Barber

President & Chief Technologist, PerfTestPlus, Inc.
www.perftestplus.com
sbarber@perftestplus.com

Executive Director, Association for Software Testing
www.associationforsoftwaretesting.org
executive.director@associationforsoftwaretesting.org

"If you can see it in your mind...
you will find it in your life."

Eugene Kirpichov comments on Asynchronous Architectures [4]

Eugene Kirpichov — Mon, 15 Mar 2010 10:27:04 +0000

Thank you very much for transcribing the talk!

Mark Sheehan comments on The Importance of Measurements

Mark Sheehan — Tue, 28 Jul 2009 21:15:42 +0000

Google Books has indexed a 1983 edition of the DeMarco book you mention and indeed it does include the phrase "you can't control what you can't measure" on pages 58 and 112. You can see this for yourself by going to:

http://books.google.com/books?ei=emhvSvmKKJTklAS9lYXuDg&id=y7AmAAAAMAAJ&dq=Controlling+Software+Projects%3A+Management%2C+Measurement+and+Estimation&q=can%27t

The page 58 occurrence is barely visible, but it's plain on page 112.

-Mark

Rahul Verma comments on Where Performance Meets Availability

Rahul Verma — Tue, 28 Jul 2009 18:12:29 +0000

Hi Chris,

It's a long time that you didn't blog on anything.

Please consider this as a reminder. There are people who learn from what you write. I am one of them.

Regards,
Rahul Verma

Tim Beullens comments on Latency, Bandwidth, and Station Wagons

Tim Beullens — Mon, 11 May 2009 15:19:33 +0000

Nice post, and many nice quotes!

It is true that delivery of any kind, for large amounts of data is always faster than using the world-wide-web or even direct leased lines.

But I think we are comparing different things here...
A station wagon loaded with 1000 tapes, will travel faster. Correct!

But to have the total picture: Try and write 1000 tapes AND drive them over to the destination, AND read all data at the destination and write it on local storage there AND return the empty tapes and car...

Measuring transfer time of data send over the internet will contain also the "encapsulation" process as data will be handled by all layers of the OSI model. In the comparisation here, the time for the complete data processing (7 layers) is compared with only the bottom layer of the OSI model of another way of sending...

OK, I get the picture of the quotes and the bottom line of this post, but if we compare the complete package, it may have different outcomes....

Ale comments on Controlling What You Can't Measure

Ale — Tue, 17 Mar 2009 22:09:28 +0000

As an experienced manager I believe that we have a serious misunderstanding here.

The objective of the saying is to indicate that, if you want to control something, you need to measure its current performance first, make adjustments, and measure again.

To discard this saying based on things that we control but that we didn't measure in the first place only means that we didn't understand.

Cancer medications are one of the most extensible measured and quality controlled products in the world. Some say that more than 50% off all costs while developing a medication goes to quality control i.e. measuring.

enry_straker comments on Asynchronous Architectures [4]

enry_straker — Mon, 09 Mar 2009 04:08:16 +0000

I was initially going to dis-agree with the first commenter regarding his claim that '...what was basically a very chaotic presentation.' till i saw who the poster was.

Having watched it a few more times, i still dis-agree with Werner regarding the nature of his talk.

I absolutely enjoyed it. Loved it, in fact.

Having worked in this space ( scalability, availability etc ) for quite a few years now, it's nice to see people like Werner sharing their experiences and perspectives on it.

Also, an enormous thanks to chris for the work in transcribing the talk into a post. Great job, dude.

Chris Loosley comments on Where Performance Meets Availability

Chris Loosley — Wed, 11 Feb 2009 03:16:46 +0000

Rahul,
I've been preoccupied some business and personal projects that were not related to systems performance management, so I got out of the routine. This viewbook [4.6Mb pdf] for a local college is a sample of my work for our company, UpRight Marketing, last year.

But right now I'm back to doing some Web design and development work, so it seemed like a good time to try to restart my blog.

Thanks for noticing,
--Chris