selftests/bpf: avoid reporting +100% difference in veristat for actual 0%

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In special case when both base and comparison values are 0, veristat
currently reports "+0 (+100%)" difference, which is quite confusing. Fix
it up to be "+0 (+0%)".

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20221005161450.1064469-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Andrii Nakryiko 2022-10-05 09:14:49 -07:00 • committed by Alexei Starovoitov

parent 2a72f5951a

commit 6df2eb45e3

1 changed files with 8 additions and 4 deletions

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tools/testing/selftests/bpf/veristat.c

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