From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>, Andi Kleen <ak@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/4] perf intel-pt: Fix missing CYC processing in PSB
Date: Fri, 5 Feb 2021 19:53:47 +0200 [thread overview]
Message-ID: <20210205175350.23817-2-adrian.hunter@intel.com> (raw)
In-Reply-To: <20210205175350.23817-1-adrian.hunter@intel.com>
Add missing CYC packet processing when walking through PSB+. This
improves the accuracy of timestamps that follow PSB+, until the next
MTC.
Fixes: 3d49807870f08 ("perf tools: Add new Intel PT packet definitions")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 697513f35154..91cba0582736 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1761,6 +1761,9 @@ static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
break;
case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
case INTEL_PT_VMCS:
case INTEL_PT_MNT:
case INTEL_PT_PAD:
--
2.17.1
next prev parent reply other threads:[~2021-02-05 17:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-05 17:53 [PATCH 4/0] perf intel-pt: Add PSB events Adrian Hunter
2021-02-05 17:53 ` Adrian Hunter [this message]
2021-02-05 17:53 ` [PATCH 2/4] perf intel-pt: Fix premature IPC Adrian Hunter
2021-02-05 17:53 ` [PATCH 3/4] perf intel-pt: Fix IPC with CYC threshold Adrian Hunter
2021-02-05 17:53 ` [PATCH 4/4] perf intel-pt: Add PSB events Adrian Hunter
2021-02-05 20:54 ` [PATCH 4/0] " Andi Kleen
2021-02-18 19:05 ` Arnaldo Carvalho de Melo
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