netdev - [PATCH bpf-next 07/10] selftests/bpf: make veristat emit all stats in CSV mode by default

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Date:   Wed, 2 Nov 2022 22:53:01 -0700
From:   Andrii Nakryiko <andrii@...nel.org>
To:     <bpf@...r.kernel.org>, <ast@...nel.org>, <daniel@...earbox.net>,
        <netdev@...r.kernel.org>, <kuba@...nel.org>
CC:     <andrii@...nel.org>, <kernel-team@...com>
Subject: [PATCH bpf-next 07/10] selftests/bpf: make veristat emit all stats in CSV mode by default

Make veristat distinguish between table and CSV output formats and use
different default set of stats (columns) that are emitted. While for
human-readable table output it doesn't make sense to output all known
stats, it is very useful for CSV mode to record all possible data, so
that it can later be queried and filtered in replay or comparison mode.

Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
---
 tools/testing/selftests/bpf/veristat.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/veristat.c b/tools/testing/selftests/bpf/veristat.c
index 37e512d233a7..ec1a8ba7791c 100644
--- a/tools/testing/selftests/bpf/veristat.c
+++ b/tools/testing/selftests/bpf/veristat.c
@@ -501,6 +501,15 @@ static const struct stat_specs default_output_spec = {
 	},
 };
 
+static const struct stat_specs default_csv_output_spec = {
+	.spec_cnt = 9,
+	.ids = {
+		FILE_NAME, PROG_NAME, VERDICT, DURATION,
+		TOTAL_INSNS, TOTAL_STATES, PEAK_STATES,
+		MAX_STATES_PER_INSN, MARK_READ_MAX_LEN,
+	},
+};
+
 static const struct stat_specs default_sort_spec = {
 	.spec_cnt = 2,
 	.ids = {
@@ -1561,8 +1570,12 @@ int main(int argc, char **argv)
 	if (env.verbose && env.log_level == 0)
 		env.log_level = 1;
 
-	if (env.output_spec.spec_cnt == 0)
-		env.output_spec = default_output_spec;
+	if (env.output_spec.spec_cnt == 0) {
+		if (env.out_fmt == RESFMT_CSV)
+			env.output_spec = default_csv_output_spec;
+		else
+			env.output_spec = default_output_spec;
+	}
 	if (env.sort_spec.spec_cnt == 0)
 		env.sort_spec = default_sort_spec;
 
-- 
2.30.2