tools/kvm_stat: fix child trace events accounting
Child trace events were included in calculation of the overall total, which is used for calculation of the percentages of the '%Total' column. However, the parent trace envents' stats summarize the child trace events, hence we'd incorrectly account for them twice, leading to slightly wrong stats. With this fix, we use the correct total. Consequently, the sum of the child trace events' '%Total' column values is identical to the respective value of the respective parent event. However, this also means that the sum of the '%Total' column values will aggregate to more than 100 percent. Signed-off-by: NStefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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