ns2 project in punjab

ns2 project in punjab


    ns2 project in Punjab in the model, three principal times are associated to each

one of these activities: Waiting Time (the time between the

time-stamps of its ready and begin events), Service Time

(the time between the time-stamps of its ns2 project in punjab  begin and end

events) and Response Time (the sum of Waiting and Service

Times). The behavioural model presented here is useful to represent

sequences of activities developed ns2 project in punjab in response to the

main input events which the PDES must deal with, and

so is useful for the analysis methodology to be presented.

These sequences are called end-to-end transactions or simply

transactions in the methodology. Construction of the ns2 project in punjab  behavioural model implies a deep

understanding of another two models defined by the

methodology used in the development of the PDES: the

functional model, built from the ns2 project in punjab  specifications, that represents

the main activities of the system to be developed, and

the structural model, that represents the ns2 project in punjab proposed design to

support the functionality. From these two models, all the

sequences of activities that conform the behavioural model

can be derived. The goal of the methodology is performance debugging

of PDES. To achieve this, the analysis of system behaviour

from the early design phase to its final implementationmust

be provided. Thus, the methodology involves the construction

of a synthetic prototype [15] of the PDES design, which

is analyzed and refined until fulfillment ns2 project in punjab of the timing constraints

is achieved.

The prototype also serves as a skeleton

for the implementation phase. In Figure 2 the integration of

the methodology in the PDES development cycle is shown.

Two refining cycles can be derived from the methodology;

one working with early designs ns2 project in punjab through prototypes of the

PDES, and the other with the implementation of the PDES.

The methodology approach can be resumed in the following steps:

1. Prototyping of the initial PDES design under analysis.

2. Understanding of the sequences of activities to be executed

as responses to input events (transactions), establishing

a specification of behaviour for them.

3. Instrumentation of the PDES software prototype to

enable the monitoring system to ns2 project in punjab obtain information

about the behaviour of transactions during the PDES

execution. 4. Execution of the instrumented PDES under specific

operational conditions (scenario) over a period of time

long enough to obtain a representative event trace.

5. Checking of the fulfillment of the real-time constraints

defined in the specification of behaviour for the PDES Development of a multi-level analysis in specific temporal

intervals (analysis windows) based on a set of

parameters and metrics derived from ns2 project in punjab the trace, and

combining structural, behavioural and resource views.

7. Identification of critical transactions which do not fulfill

their specifications of behaviour, and evaluation of

the incidence of a set of possible causes of the behaviour

observed in the PDES as a whole, the critical

transactions and the critical activities within them (diagnosis

of temporal behaviour). 8. Tuning of the system design according to the incidence

of each cause of behaviour, establishing a ns2 project in punjab suitable configuration

of the PDES. 9. Repetition of the analysis cycle until a final prototype,

which achieves fulfillment of the timing constraints

with minimum amount of resources, is obtained.

10. Implementation of PDES design and repetition of the

analysis cycle until its final implementation. The specification ns2 project in punjab of behaviour of the PDES consists of

specifications of the behaviour of ns2 project in punjab each transaction. These

specifications consider load characteristics and timing constraints

in transactions.