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Mon, 30 Jan 2023 00:00:59 -0600 From: Sandipan Das To: , , CC: , , , , , , , , , , , , , , , , Subject: [PATCH v3 2/2] perf session: Show branch speculation info in raw dump Date: Mon, 30 Jan 2023 11:29:16 +0530 Message-ID: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT025:EE_|SN7PR12MB6929:EE_ X-MS-Office365-Filtering-Correlation-Id: 239335b3-4377-442f-6b6d-08db02877aa8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(39860400002)(346002)(136003)(376002)(396003)(451199018)(40470700004)(46966006)(36840700001)(4326008)(41300700001)(8676002)(40480700001)(6666004)(110136005)(8936002)(316002)(70586007)(54906003)(5660300002)(70206006)(7416002)(44832011)(83380400001)(40460700003)(36756003)(36860700001)(81166007)(7696005)(2906002)(26005)(186003)(16526019)(478600001)(2616005)(86362001)(426003)(336012)(47076005)(356005)(82740400003)(82310400005)(36900700001);DIR:OUT;SFP:1101; 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This can be useful for purposes of code optimization. E.g. $ perf record -j any,u ./test_branch $ perf report --dump-raw-trace Before: [...] 8380958377610 0x40b178 [0x1b0]: PERF_RECORD_SAMPLE(IP, 0x2): 7952/7952: 0x4f851a period: 48973 addr: 0 ... branch stack: nr:16 ..... 0: 00000000004b52fd -> 00000000004f82c0 0 cycles P 0 ..... 1: ffffffff8220137c -> 00000000004b52f0 0 cycles M 0 ..... 2: 000000000041d1c4 -> 00000000004b52f0 0 cycles P 0 ..... 3: 00000000004e7ead -> 000000000041d1b0 0 cycles M 0 ..... 4: 00000000004e7f91 -> 00000000004e7ead 0 cycles P 0 ..... 5: 00000000004e7ea8 -> 00000000004e7f70 0 cycles P 0 ..... 6: 00000000004e7e52 -> 00000000004e7e98 0 cycles M 0 ..... 7: 00000000004e7e1f -> 00000000004e7e40 0 cycles M 0 ..... 8: 00000000004e7f60 -> 00000000004e7df0 0 cycles P 0 ..... 9: 00000000004e7f58 -> 00000000004e7f60 0 cycles M 0 ..... 10: 000000000041d85d -> 00000000004e7f50 0 cycles P 0 ..... 11: 000000000043306a -> 000000000041d840 0 cycles P 0 ..... 12: ffffffff8220137c -> 0000000000433040 0 cycles M 0 ..... 13: 000000000041e4a1 -> 0000000000433040 0 cycles P 0 ..... 14: ffffffff8220137c -> 000000000041e490 0 cycles M 0 ..... 15: 000000000041d89b -> 000000000041e487 0 cycles P 0 ... thread: test_branch:7952 ...... dso: /data/sandipan/test_branch [...] After: [...] 8380958377610 0x40b178 [0x1b0]: PERF_RECORD_SAMPLE(IP, 0x2): 7952/7952: 0x4f851a period: 48973 addr: 0 ... branch stack: nr:16 ..... 0: 00000000004b52fd -> 00000000004f82c0 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 1: ffffffff8220137c -> 00000000004b52f0 0 cycles M 0 NON_SPEC_CORRECT_PATH ..... 2: 000000000041d1c4 -> 00000000004b52f0 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 3: 00000000004e7ead -> 000000000041d1b0 0 cycles M 0 NON_SPEC_CORRECT_PATH ..... 4: 00000000004e7f91 -> 00000000004e7ead 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 5: 00000000004e7ea8 -> 00000000004e7f70 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 6: 00000000004e7e52 -> 00000000004e7e98 0 cycles M 0 SPEC_CORRECT_PATH ..... 7: 00000000004e7e1f -> 00000000004e7e40 0 cycles M 0 NON_SPEC_CORRECT_PATH ..... 8: 00000000004e7f60 -> 00000000004e7df0 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 9: 00000000004e7f58 -> 00000000004e7f60 0 cycles M 0 NON_SPEC_CORRECT_PATH ..... 10: 000000000041d85d -> 00000000004e7f50 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 11: 000000000043306a -> 000000000041d840 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 12: ffffffff8220137c -> 0000000000433040 0 cycles M 0 NON_SPEC_CORRECT_PATH ..... 13: 000000000041e4a1 -> 0000000000433040 0 cycles P 0 NON_SPEC_CORRECT_PATH ..... 14: ffffffff8220137c -> 000000000041e490 0 cycles M 0 NON_SPEC_CORRECT_PATH ..... 15: 000000000041d89b -> 000000000041e487 0 cycles P 0 NON_SPEC_CORRECT_PATH ... thread: test_branch:7952 ...... dso: /data/sandipan/test_branch [...] Signed-off-by: Sandipan Das --- tools/perf/util/session.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 7c021c6cedb9..a42f051dab9d 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1180,7 +1180,7 @@ static void branch_stack__printf(struct perf_sample *sample, bool callstack) struct branch_entry *e = &entries[i]; if (!callstack) { - printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x %s\n", + printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x %s %s\n", i, e->from, e->to, (unsigned short)e->flags.cycles, e->flags.mispred ? "M" : " ", @@ -1188,7 +1188,8 @@ static void branch_stack__printf(struct perf_sample *sample, bool callstack) e->flags.abort ? "A" : " ", e->flags.in_tx ? "T" : " ", (unsigned)e->flags.reserved, - get_branch_type(e)); + get_branch_type(e), + e->flags.spec ? branch_spec_desc(e->flags.spec) : ""); } else { if (i == 0) { printf("..... %2"PRIu64": %016" PRIx64 "\n"