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vdebug - control instruction tracing
vdebug [-cpu
<i>cpu_set
</i>] [-o
<i>file_name
</i>] on|off
Enables (or disables) instruction tracing. If -o is given, tracing
output will be redirected to a file, or in the case of multiple worker
threads, files. In either case,
<i>file_name
</i> is used as the template
to generate unique file names for each worker thread.
If the
<a href=
"flag_cpu.html">-cpu
</a> option is omitted, enables (or
disables) tracing for all cpus.
Otherwise, the -cpu option selects which cpus generate trace.