Guerrilla Capacity Planning

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Discussion about computer systems performance and capacity management. You don't need to be a Guerrilla class alumnus, but you will need to provide more than just your email address to join in (e.g., your blog or Linkedin profile).

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Stefan Möding, DrQ2

7/14/21

PDQ 7.0.0 oddity

Hi Stefan, Yes, I discovered this bug myself while teaching the most recent GCAP class. Blush. It

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PDQ 7.0.0 oddity

Hi Stefan, Yes, I discovered this bug myself while teaching the most recent GCAP class. Blush. It

7/14/21

7/9/19

DSConf 2019: Applying The Universal Scalability Law to Distributed Systems (video)

When I originally developed the Universal Scalability Law (USL), it was in the context of tightly-

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DSConf 2019: Applying The Universal Scalability Law to Distributed Systems (video)

When I originally developed the Universal Scalability Law (USL), it was in the context of tightly-

7/9/19

DrQ, … Vladimir Sitnikov4

12/14/18

How to Emulate Web Traffic Using Standard Load Testing Tools

>I don't know how the "Target Throughput" mechanism in the Precise Throughput Timer

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How to Emulate Web Traffic Using Standard Load Testing Tools

>I don't know how the "Target Throughput" mechanism in the Precise Throughput Timer

12/14/18

8/3/18

Guerrilla 2018 Classes Now Open

Quick reminder that Early Bird registration closes soon. Check the respective date by going to the

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Guerrilla 2018 Classes Now Open

Quick reminder that Early Bird registration closes soon. Check the respective date by going to the

8/3/18

DrQ, … Mohit Chawla8

7/18/18

Chargeback in the Cloud - FREE online event, June 19th, 2018

Thanks for the update! On Wednesday, July 18, 2018, 'DrQ' via Guerrilla Capacity Planning

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Chargeback in the Cloud - FREE online event, June 19th, 2018

Thanks for the update! On Wednesday, July 18, 2018, 'DrQ' via Guerrilla Capacity Planning

7/18/18

3/17/18

WTF is Modeling, Anyway?

A conversation with CAP management veteran, Boris Zibitsker, on his BEZnext channel. He's

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WTF is Modeling, Anyway?

A conversation with CAP management veteran, Boris Zibitsker, on his BEZnext channel. He's

3/17/18

2/21/18

CPU Idle Is Not Like White Space

Latest rambling. Under pressure to consolidate resources (usually driven by management), especially

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CPU Idle Is Not Like White Space

Latest rambling. Under pressure to consolidate resources (usually driven by management), especially

2/21/18

Radu Brumariu, DrQ10

12/4/17

serial to parallel circuit input

Something like this capability in PDQ wouldn't exactly go astray. :) On Thursday, November 23,

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serial to parallel circuit input

Something like this capability in PDQ wouldn't exactly go astray. :) On Thursday, November 23,

12/4/17

Radu Brumariu, DrQ21

11/28/17

Open or closed ?

Hi, looking through the book and examples, I can't find any allusions to a model that has a multi

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Open or closed ?

Hi, looking through the book and examples, I can't find any allusions to a model that has a multi

11/28/17

benikenobi, … DrQ27

11/8/17

Good talk about capacity planning

To tell you the truth (not that I haven't been), I have more often come across applications that

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Good talk about capacity planning

To tell you the truth (not that I haven't been), I have more often come across applications that

11/8/17

8/10/17

Guerrilla CaP Classes 2017

Two classic courses and a new one are being offered in September 2017 : Guerrilla Capacity Planning (

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Guerrilla CaP Classes 2017

Two classic courses and a new one are being offered in September 2017 : Guerrilla Capacity Planning (

8/10/17

DrQ, benikenobi4

6/9/17

Crib Sheet for Emulating Web Traffic

Thanks very much for your detailed response. With the response plus the reading of the related blog

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Crib Sheet for Emulating Web Traffic

Thanks very much for your detailed response. With the response plus the reading of the related blog

6/9/17

Mohit Chawla, … Stefan Moeding10

10/14/16

Improving USL results

Hi! On Monday, July 18, 2016 at 7:08:41 AM UTC+2, DrQ wrote: Here are the significance levels for the

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Improving USL results

Hi! On Monday, July 18, 2016 at 7:08:41 AM UTC+2, DrQ wrote: Here are the significance levels for the

10/14/16

7/25/16

Gaphorism by Goethe

Hello folks, This is from Goethe's maxims and reflections ... sounds like a gaphorism to me.

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Gaphorism by Goethe

Hello folks, This is from Goethe's maxims and reflections ... sounds like a gaphorism to me.

7/25/16

Mohit Chawla, … DrQ13

6/17/16

Beginner's question about tomcat and USL

Thanks folks. On Jun 17, 2016 1:47 AM, "'DrQ' via Guerrilla Capacity Planning" <

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Beginner's question about tomcat and USL

Thanks folks. On Jun 17, 2016 1:47 AM, "'DrQ' via Guerrilla Capacity Planning" <

6/17/16

6/15/16

Intel's x86 CPU-in-a-CPU and Its Security Risks

BoingBoing.net "Recent Intel x86 processors implement a secret, powerful control mechanism that

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Intel's x86 CPU-in-a-CPU and Its Security Risks

BoingBoing.net "Recent Intel x86 processors implement a secret, powerful control mechanism that

6/15/16

6/7/16

2016 GUERRILLA TRAINING SCHEDULE 2016

After a six month hiatus, Guerrilla training classes are back in business. Register online. Early-

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2016 GUERRILLA TRAINING SCHEDULE 2016

After a six month hiatus, Guerrilla training classes are back in business. Register online. Early-

6/7/16

benikenobi, … Scott Johnson5

5/28/16

Statistics Control Process

Thanks for the references, I will have a look. I would prefer python-based info :) but I would have a

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Statistics Control Process

Thanks for the references, I will have a look. I would prefer python-based info :) but I would have a

5/28/16

DrQ, … rml...@gmail.com12

5/27/16

The Linux Scheduler: a Decade of Wasted Cores

I should've added that the interconnect could also be replaced with something more typical, like

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The Linux Scheduler: a Decade of Wasted Cores

I should've added that the interconnect could also be replaced with something more typical, like

5/27/16

hasan ceylan, … rml...@gmail.com3

5/9/16

How would you use to predict growth using PDQ library?

These numbers make no sense. I assume that your time unit for the arrival rate is 1 second. Your

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How would you use to predict growth using PDQ library?

These numbers make no sense. I assume that your time unit for the arrival rate is 1 second. Your

5/9/16

5/5/16

Is this group active?

I was curious if this group is still active? I asked some questions, not getting any response.

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Is this group active?

I was curious if this group is still active? I asked some questions, not getting any response.

5/5/16

Baron Schwartz, … hasan ceylan3

5/2/16

USL and response times, TCP, and R

I am also interested to see how to apply usl to response times. Is there a sample work done on this?

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USL and response times, TCP, and R

I am also interested to see how to apply usl to response times. Is there a sample work done on this?

5/2/16

Vlad Mihalcea, … hasan ceylan43

4/21/16

The throughput and response time equations

Was is this issue settled. I am facing with the same challenge. I can collect workload and throughput

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The throughput and response time equations

Was is this issue settled. I am facing with the same challenge. I can collect workload and throughput

4/21/16

Uriel Carrasquilla, … hasan ceylan22

4/19/16

RE: R package to analyze USL models

can somebody explain what "Scale Factor for normalization and Efficiency mean in this model? On

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RE: R package to analyze USL models

can somebody explain what "Scale Factor for normalization and Efficiency mean in this model? On

4/19/16

Shanti Subramanyam (gmail)

4/6/16

Measuring scalability of multiple distributed applications in a "system"

Neil et al, I read with interest the Hadoop scalability paper - thanks for the work. As we all know

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Measuring scalability of multiple distributed applications in a "system"

Neil et al, I read with interest the Hadoop scalability paper - thanks for the work. As we all know

4/6/16

Baron Schwartz, hasan ceylan2

4/4/16

USL ->> MPP response time

Hi Mr. Schwartz, I read your books in github, very good. I am trying to create a model to predict

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USL ->> MPP response time

Hi Mr. Schwartz, I read your books in github, very good. I am trying to create a model to predict

4/4/16

4/4/16

pdq with R shiny

has anybody implemented PDQ with R shiny package?

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pdq with R shiny

has anybody implemented PDQ with R shiny package?

4/4/16

4/4/16

where can I get PDQ Library for R

I'm unable to connect to sourceforce site. Does anybody have any other site or is this package

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where can I get PDQ Library for R

I'm unable to connect to sourceforce site. Does anybody have any other site or is this package

4/4/16

2/17/16

RE: PDQ Initial setup

I downloaded the latest version of Strawberry Perl and was able to get PDQ to compile and run the

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RE: PDQ Initial setup

I downloaded the latest version of Strawberry Perl and was able to get PDQ to compile and run the

2/17/16

DrQ, … Alexander Podelko17

1/14/16

see slide 77 of http://www.slideshare.net/adriancockcroft/innovation-and-architecture A Microservice

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see slide 77 of http://www.slideshare.net/adriancockcroft/innovation-and-architecture A Microservice

1/14/16

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