[Xen-devel] adding traces in xentrace and xenalyze?

[Sisu Xi <xisisu@xxxxxxxxx>]

Hi, all:

I am trying to measure the scheduling related latency using the xentrace framework. I add some macros inÂinclude/public/trace.h, using mask 0x00024000,Â

and record the overhead by modifying xen/common/schedule.c.

It compiles and runs.

However, I am not sure how to modify the xenalyze to show the data. I tried the -a option, seems the new added data is not shown. (but other data works fine). Could someone kindly give some pointers to me?

I also tried the xentrace_format to dump the raw data, it says:

[xisisu@localhost gedf]$ xentrace_format busy.binÂ

Traceback (most recent call last):

 File "/usr/bin/xentrace_format", line 85, in <module>

  defs = read_defs(arg[0])

 File "/usr/bin/xentrace_format", line 54, in read_defs

  defs[str(eval(m.group(1)))] = m.group(2)

 File "<string>", line 1

  ?

  ^

SyntaxError: invalid syntax

Does any one know how to fix this?

Thanks very much!

Sisu

--Â

Sisu Xi, PhD Candidate

http://www.cse.wustl.edu/~xis/
Department of Computer Science and Engineering
Campus Box 1045
Washington University in St. Louis
One Brookings Drive
St. Louis, MO 63130

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