after run xentrace command for a few seconds xentrace --discard-buffers -e all --trace-buf-size 256 traceout.log I get a the result file traceout.log ,and its size if 132M then run the command below，but nothing is printed………… cat traceout.log | xentrace_format formats |more the context of my format file formats is like this： 0xfffff000 %(cpu)d, %(tsc)d, %(event)d, %(1)d, %(2)d, %(3)d, %(4)d, %(5)d is there any other thing need to be notice？why the xentrace_format didn''t work... -- View this message in context: http://old.nabble.com/why-after-xentrace_format-%2Ci-get-nothing-tp28668947p28668947.html Sent from the Xen - Dev mailing list archive at Nabble.com. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel