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Aphorisms. David Kurtz Go-Faster Consultancy Ltd. [email protected] www.go-faster.co.uk. Performance is exactly what the user perceives it to be. No more, no less. Performance is ‘poor’ when the user’s perception does not match their expectation.

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Aphorisms

Aphorisms

David Kurtz

Go-Faster Consultancy Ltd.

[email protected]

www.go-faster.co.uk




You don’t need fancy monitoring software to tell you that a system is performing poorly.

That is what users are for.


Performance Tuning is a search for lost time. a system is performing poorly.


Concentrate on the big picture. a system is performing poorly.


It is a capital mistake to theorise before one has data. a system is performing poorly.

The Memoirs of Sherlock Holmes, Arthur Conan-Doyle


When you have eliminated the impossible, whatever remains, a system is performing poorly. however improbable, must be the truth.

A Study in Scarlet, Arthur Conan-Doyle


Singularity is invariably a clue. The more featureless and commonplace a crime is, the more difficult it is to bring it home.

The adventures of Sherlock Homes, Arthur Conan-Doyle


It has long been an axiom of mine that the little things are of infinitely important.

The return of Sherlock Holmes, Arthur Conan-Doyle


To the curious instance of the dog in the night-time. of infinitely important.

The dog did nothing in the night-time.

That was the curious instance.

The return of Sherlock Holmes, Arthur Conan-Doyle



Detection is, or ought to be, an exact science. of infinitely important.

It should be be treated in the same cold and unemotional manner.

The Sign of Four, Arthur Conan-Doyle


Keep it simple of infinitely important.


The problems change from release to release, but the methods by which they are investigated remain the same.

Jonathan Lewis


You know my methods, by which they are investigated remain the same.

apply them.

A Study in Scarlet, Arthur Conan-Doyle


Aphorisms1

Aphorisms by which they are investigated remain the same.

David Kurtz

Go-Faster Consultancy Ltd.

[email protected]

www.go-faster.co.uk