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profiling [2007/08/29 17:25]
vapier link in the CYCLES method of profiling
profiling [2008/12/22 06:02] (current)
vapier Links to enabling_oprofile changed to linux-kernel:oprofile
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 There are two profilers that are currently supported: There are two profilers that are currently supported:
-[[http://oprofile.sourceforge.net/|Oprofile]] is a system-wide profiler for Linux systems, capable of profiling all running code at low overhead. It consists of a kernel driver and a daemon for collecting sample data, and several post-profiling tools for turning data into information. [[Enabling oprofile]]+[[http://oprofile.sourceforge.net/|Oprofile]] is a system-wide profiler for Linux systems, capable of profiling all running code at low overhead. It consists of a kernel driver and a daemon for collecting sample data, and several post-profiling tools for turning data into information. [[linux-kernel:oprofile]]
  
 VDSP++'s statistical profiling feature can also be used for Linux Applications. The particular advantage of statistical profiling is that since it uses JTAG nearly 100%, it is completely unobtrusive to the applciation. Other forms of profiling insert instrumentation into the code, disturbing the original optimization, code size, and register allocation to some degree. More details about how to use it may be found in the VisualDSP++ User’s Guide, and there is a short guide to [[statistical profiling]].  VDSP++'s statistical profiling feature can also be used for Linux Applications. The particular advantage of statistical profiling is that since it uses JTAG nearly 100%, it is completely unobtrusive to the applciation. Other forms of profiling insert instrumentation into the code, disturbing the original optimization, code size, and register allocation to some degree. More details about how to use it may be found in the VisualDSP++ User’s Guide, and there is a short guide to [[statistical profiling]].