Development Environment

Saving Profile Reports

When you generate the profile report, use the option to save it. For example,

profile report basename

saves the profile report to the file basename in the current directory. Later you can view the saved results using a Web browser.

Another way to save results is with the info = profile function, which displays a structure containing the profiler results. Save this structure so that later you can generate and view the profile report using profreport(info).

Example Using Structure of Profiler Results

The profiler results are stored in a structure that you can view or access. This example illustrates how you can view the results.

1. Run the profiler for code that computes the Lotka-Volterra predator-prey population model.

profile on -detail builtin -history
[t,y] = ode23('lotka',[0 2],[20;20]);

2. To view the structure containing profiler results, type

stats = profile('info')

MATLAB returns

stats = 
      FunctionTable: [41x1 struct]
    FunctionHistory: [2x826 double]
     ClockPrecision: 0.0100
               Name: 'MATLAB'

3. You can view and access the contents of the structure. For example, type

stats.FunctionTable

MATLAB displays the FunctionTable structure.

ans = 
41x1 struct array with fields:
    FunctionName
    FileName
    Type
    NumCalls
    TotalTime
    TotalRecursiveTime
    Children
    Parents
    ExecutedLines

4. To view the contents of an element in the FunctionTable structure, type, for example,

stats.FunctionTable(2)

MATLAB returns the second element in the structure.

ans = 
          FunctionName: 'horzcat'
              FileName: ''
                  Type: 'Builtin-function'
              NumCalls: 43
             TotalTime: 0.0100
    TotalRecursiveTime: 0.0100
              Children: [0x1 struct]
               Parents: [2x1 struct]
         ExecutedLines: [0x3 double]

5. Save the results.

save profstats

6. In a later session, to generate the profiler report using the saved results, type

load profstats
profreport(stats)

MATLAB displays the profile report.

Profile Plot

Interfacing with Source Control Systems