Ways to Improve Performance

Profile-Based Optimization

When to Use PBO

PBO should be the last level of optimization you use when building an application. As with other optimizations, it should be performed after an application has been completely debugged.

Most applications will benefit from PBO. The two types of applications that will benefit the most from PBO are:

 

• Applications that exhibit poor instruction memory locality. These are

 

usually large applications in which the most common paths of

 

execution are spread across multiple compilation units. The loops in

 

these applications typically contain large numbers of statements,

 

procedure calls, or both.

 

• Applications that are branch-intensive. The operations performed in

 

such applications are highly dependent on the input data. User

 

interface managers, database managers, editors, and compilers are

 

examples of such applications.

 

Of course, the best way to determine whether PBO will improve an

 

application's performance is to try it.

 

Under some conditions, PBO is incompatible with programs that

NOTE

 

explicitly load shared libraries. Specifically, PBO will not function

 

properly if the shl_load routine has either the BIND_FIRST or the

 

BIND_NOSTART flags set. For more information about explicit loading of

 

shared libraries, see “The shl_load and cxxshl_load Routines” on page

 

215.

 

 

How to Use PBO

Profile-based optimization involves these steps:

1. Instrument the application — prepare the application so that it will generate profile data.

2. Profile the application — create profile data that can be used to optimize the application.

3. Optimize the application — generate optimized code based on the profile data.

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HP 9000 specifications

The Kenwood HP 9000 is a cutting-edge home appliance designed for culinary enthusiasts seeking to elevate their cooking experience. This powerful kitchen machine stands out for its multi-functionality, combining the roles of a food processor, blender, and mixer into one sleek unit.

One of the flagship features of the Kenwood HP 9000 is its robust motor, which delivers exceptional performance across various tasks. With a powerful motor that operates at multiple speeds, users can tackle everything from kneading dough to finely chopping vegetables with ease. The variable speed control allows for precision, ensuring that every ingredient is processed to perfection according to individual preferences.

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In terms of design, the HP 9000 is both modern and aesthetically pleasing. Its ergonomic shape and compact size make it easy to store and use in various kitchen settings, while the high-quality materials used in its construction guarantee durability and longevity. The user interface is intuitive, with clearly labeled buttons that facilitate operation, ensuring that even novice cooks can navigate the machine effortlessly.

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In summary, the Kenwood HP 9000 is an exceptional kitchen appliance that combines power, versatility, and safety. With its advanced features and user-friendly design, it is an ideal choice for anyone looking to simplify their cooking process while achieving professional-level results. Whether you're whipping up a quick meal or tackling an elaborate recipe, the HP 9000 is a reliable companion that will inspire culinary creativity.
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