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Wei Gang authored
Fixed problems include: * previously just print out a error instead of help info while running without cmdline parameters. * -u & -n lead to Segmentation fault. * -c and then use default ranges, the default ranges is not 50us... but 50000/tsc2us.... Signed-off-by: Wei Gang <gang.wei@intel.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Keir Fraser <keir@xen.org> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
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