Commit 020e2176 authored Sep 21, 2022 by Alexei Starovoitov

Merge branch 'veristat: CSV output, comparison mode, filtering'



Andrii Nakryiko says:

====================

Add three more critical features to veristat tool, which make it sufficient
for a practical work on BPF verifier:

  - CSV output, which allows easier programmatic post-processing of stats;

  - building upon CSV output, veristat now supports comparison mode, in which
    two previously captured CSV outputs from veristat are compared with each
    other in a convenient form;

  - flexible allow/deny filtering using globs for BPF object files and
    programs, allowing to narrow down target BPF programs to be verified.

See individual patches for more details and examples.

v1->v2:
- split out double-free fix into patch #1 (Yonghong);
- fixed typo in verbose flag (Quentin);
- baseline and comparison stats were reversed in output table, fixed that.
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

parents 2d863b14 bde4a96c

tools/testing/selftests/bpf/veristat.c

+770 −83

File changed.

Preview size limit exceeded, changes collapsed.

tools/testing/selftests/bpf/veristat.cfg

0 → 100644

+17 −0

Original line number	Diff line number	Diff line
		# pre-canned list of rather complex selftests/bpf BPF object files to monitor
		# BPF verifier's performance on
		bpf_flow*
		bpf_loop_bench*
		loop*
		netif_receive_skb*
		profiler*
		pyperf*
		strobemeta*
		test_cls_redirect*
		test_l4lb
		test_sysctl*
		test_tcp_hdr_*
		test_usdt*
		test_verif_scale*
		test_xdp_noinline*
		xdp_synproxy*