Hi, I have read a mail in the mail list about xentrace and xentrace_format. But I am still puzzled on how to use them. Could somebody give me an example about how to use xentrace and xentrace_format. What I have done is that: 1. Root:/# xentrace /var/perftests/xentrace.log Then I use xentrace_format to get what I want 2. cat /var/perftests/xentrace.log | xentrace_format myformat The file myformat is as follows: 0x00082006 %(cpu)d, %(tsc)d, %(event)d, %(1)d, %(2)d, %(3)d, %(4)d, %(5)d But I get: TSC stepped backward cpu 0 ! 393153231147126 393162854585484 TSC stepped backward cpu 0 ! 393153183271128 393162838623522 TSC stepped backward cpu 0 ! 393153151352298 393162870544116 Could someone tell me how to get the results as the format specified?Really need your help. Thanks, Jackie _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users