On Mon, May 06, 2013 at 02:36:46PM -0700, aayush gupta wrote: > Thanks for the reply. I am trying to use the tracing with qemu-io as > suggested in docs/tracing.txt. I did the following steps: > > 1. Configure and make with simple backend > 2. Create a set of events I am interested in (/tmp/events) > 3. Now I am running the qemu-iotests by adding T= /tmp/events to test 001 > testcase (file read path only). > It runs and generates a trace-xxxxx file. However, the file just has a > couple of lines in it in binary. > 4. When I pass it through simpletrace.py nothing happens. > > Can you tell me if I missed some step or something else needs to be done.
Invoke simpletrace.py like this: $ scripts/simpletrace.py trace-events <trace-file> If tracing doesn't work with qemu-iotests, try it manually first: $ qemu-io -T /tmp/events -c 'read 0 512' test.img Stefan
