Approved: Fortect
Over the past few weeks, some readers have encountered an Aix kernel profiling bug. There are a number of factors that can cause this problem. We will talk about this below.
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Target
Syntax
Description
tprof collects reportsCPU utilization for individual programs and your current system as a whole. this isThe command is a useful tool for anyone with a C or FORTRAN program.it might be processor related, but who wants to know the partitions that usually come fromThis program is the most demanding on the processor. TprofThe command also reports the percentage of hours the processor is idle. maybe thisReports are useful for determining CPU usage in an aggregate sense.
Note. Just ordinary people and membersThe security group must contain runtime access (x) to this command.
tprof Commandspecify a user agent for the profile, start the userProgram, and you need to create a seriesyu credit report files. vThe user specifies the name of the school to be profiled, oralternatively the name of the program to be profiledCommand line to execute. Programming command ANDVariables must be executable.
Note: Micro-profiling main can be run in code starting with -g. was created Take. Also is it necessary to have an exit code in it? as a working directory, d. H. directory where tprof is locatedThe administration is called. The most professional work catalog site is used in relevant examples there is for this.
For subroutine profiling:Tprof statements can be executed without editingexecutable program. You don’t need to specifically recompileCompiler with flags or linker options. This means that you can getthe consumer profile of a subroutine of an executable module that is alreadyit was built. However, as mentioned earlier, recompilingrequired to obtain a microprofile.
Included report snippetsremain in that particular working directory. All files used by most tprof. were createdCommands start with ___ (two underscores). Add withUnderlining simplifies the tprof command for each individualIdentify the files created by tprof. In which text is thisit is assumed that all executables are actually stored in the working directory so thatsimplify some explanation of the tool. (To keep executablesInanother directory, enter the full path to the executableFile for tprof command.) RecommendedThe working directory is created specifically for profiling andCopies associated with executables and source files that will be placed (or linked) tothis directory. In the examples, a specific working directory is a protest.
In its simplest form, a tprof deviceThe command is written like this:
tprof program
If tprof. product with no argumentsProof of use is indicated. When using the -x commandFlag, must be with the -s, -k or -p flagspecified to get specific profiling. If none of themIf metrics are specified, the summary report is most effective. Usingindicator -capital t limits the report to informational information aboutthe specified process specified in Process_IdFile settings.
reports
Summary report with any .all suffixis still in production. If program n. given, reportnamed __prof.all . If most of the example If у Given the -p option, the report is undoubtedly named __sample.all .This report contains each estimate of the CPU used.in every process that still executed the tprof programthere was a surveillance system. This report also includes an assessmentthe amount of CPU time spent on each attached subroutine in the exampleProgram. Summary report shows CPU timeDowntime as well as time spent in the kernel. TprofThe team reported the CPU time in ticks, with 100 checks 1.conformitySecond.
