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Mon, 08 Jun 2026 13:01:41 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 658D1c0R17236294 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 8 Jun 2026 13:01:38 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0AAB620049; Mon, 8 Jun 2026 13:01:38 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3BC3C20040; Mon, 8 Jun 2026 13:01:32 +0000 (GMT) Received: from li-4c4c4544-0047-4210-804e-b5c04f423534.ibm.com.com (unknown [9.124.212.67]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 8 Jun 2026 13:01:31 +0000 (GMT) From: Tanushree Shah To: acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, vmolnaro@redhat.com, mpetlan@redhat.com, tmricht@linux.ibm.com, maddy@linux.ibm.com, irogers@google.com, namhyung@kernel.org, linux-kernel@vger.kernel.org Cc: linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, atrajeev@linux.ibm.com, hbathini@linux.ibm.com, Tejas.Manhas1@ibm.com, Tanushree.Shah@ibm.com, Shivani.Nittor@ibm.com, Tanushree Shah Subject: [RFC PATCH 4/4] perf data: Add --to-trace-dat option for converting perf.data tracepoint events into trace.dat format Date: Mon, 8 Jun 2026 18:29:52 +0530 Message-ID: <20260608125951.90425-6-tshah@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260608125951.90425-2-tshah@linux.ibm.com> References: <20260608125951.90425-2-tshah@linux.ibm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjA4MDExOSBTYWx0ZWRfX4yK6fSyJX7B1 0LD4VM9FX3Par4CYpepgyb+174KN4S72XQPkJuJdzWkMVOV1uj9qW/SaLDgzRN/O/0P2m/rVF1S NECracdR4CTkOuG7c3YnzcFZVIOw/riUrgSUj1BqsGPmmbZEyvxVsdUVJQa32V31s8QWkc7pO7R OQD21S84mLGwPnpfrQw3YxT81l4fFX9Ubj82Ta7HEQOoneKsjb317J+Mk0k0ZEox01OU6kTeMf9 VB/arkDRfxKwTHL6OdVv+zw5vSy+urIPeiPC3TwZV3U8dUgQnDI4SCHV/a/ehN+NS8C2dmU8CgO iwV3kDxseeRvb8zzbj2p3skpvKOM7ayB5F+SiP+fyjpzFof5rYJu15Si9o0hjoFXeN6W/r2ITrH qOkWfjL4ugDbkHzIDOEUgH//Vjw3zDVtlr7MEO6w0GQvD9OnhmNlPlH5ct78DCBW2P/a7S2M3O/ +SYFFbX/40FOAx3qWYw== X-Authority-Analysis: v=2.4 cv=QKhYgALL c=1 sm=1 tr=0 ts=6a26bd36 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=K4taSuynnpskC6VPo1wA:9 X-Proofpoint-GUID: I9pkhyCKv2z56jK8IM63q7GDAxBthAh9 X-Proofpoint-ORIG-GUID: 5k1rZz9uyoyBJhA3FirR4bMvI6Xytmin X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-08_03,2026-06-05_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 adultscore=0 phishscore=0 malwarescore=0 impostorscore=0 suspectscore=0 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606080119 Add new command-line option to perf data convert for generating trace.dat output files. The --to-trace-dat option: - Accepts output filename for trace.dat format - Mutually exclusive with --to-ctf and --to-json - Calls trace_convert__perf2dat() to perform conversion Usage: $ perf record -e sched:* -a sleep 1 $ perf data convert --to-trace-dat=trace.dat $ trace-cmd report trace.dat Signed-off-by: Tanushree Shah --- tools/perf/builtin-data.c | 38 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c index 4c08ccb8c06b..96ccab77456a 100644 --- a/tools/perf/builtin-data.c +++ b/tools/perf/builtin-data.c @@ -30,6 +30,9 @@ static const char *data_usage[] = { static const char *to_json; static const char *to_ctf; +#ifdef HAVE_LIBTRACEEVENT + static const char *trace_dat_output; +#endif static struct perf_data_convert_opts opts = { .force = false, .all = false, @@ -48,6 +51,10 @@ static const struct option data_options[] = { OPT_BOOLEAN(0, "all", &opts.all, "Convert all events"), OPT_STRING(0, "time", &opts.time_str, "str", "Time span of interest (start,stop)"), +#ifdef HAVE_LIBTRACEEVENT + OPT_STRING(0, "to-trace-dat", &trace_dat_output, + "file", "Convert to trace.dat format using perf.data tracepoints"), +#endif OPT_END() }; @@ -65,16 +72,43 @@ static int cmd_data_convert(int argc, const char **argv) pr_err("You cannot specify both --to-ctf and --to-json.\n"); return -1; } +#ifdef HAVE_LIBTRACEEVENT + if (trace_dat_output && (to_json || to_ctf)) { + pr_err("You cannot specify --to-trace-dat with --to-ctf or --to-json.\n"); + return -1; + } +#endif + #ifdef HAVE_LIBBABELTRACE_SUPPORT + #ifdef HAVE_LIBTRACEEVENT + if (!to_json && !to_ctf && !trace_dat_output) { + pr_err("You must specify one of --to-ctf, --to-json, or --to-trace-dat.\n"); + return -1; + } + #else if (!to_json && !to_ctf) { pr_err("You must specify one of --to-ctf or --to-json.\n"); return -1; } + #endif #else + #ifdef HAVE_LIBTRACEEVENT + if (!to_json && !trace_dat_output) { + pr_err("You must specify --to-json or --to-trace-dat.\n"); + return -1; + } + #else if (!to_json) { pr_err("You must specify --to-json.\n"); - return -1; -} + return -1 + } + #endif +#endif + +#ifdef HAVE_LIBTRACEEVENT + if (trace_dat_output) + return trace_convert__perf2dat(input_name ? input_name : "perf.data", + trace_dat_output, &opts); #endif if (to_json) -- 2.53.0