stptracer-20060828 has released.
Li Guanglei
guanglei@cn.ibm.com
Thu Aug 31 08:56:00 GMT 2006
Li Guanglei wrote:
> [...]
> Here you can see that gBTI is around 23% faster than _stp_printf(). In
> fact a long time ago I used oprofile to find out where _stp_printf()
> cost cpu time, and it showed that a lot time is spent on _stp_vsnprintf().
>
Attached is the profiling data I got a minute ago by running
the tests I mentioned in my mail. I only kept the leading few lines of
the generated profiling file.
oprofile.all is generated by:
opreport -p STP_MODULE_DIR -lg > oprofile.all
oprofile.kernel is generated by:
opreport /boot/vmlinux-`uname -r`.debug -lg > oprofile.kernel
- Guanglei
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