{"id":10296,"url":"https://patchwork.libcamera.org/api/covers/10296/?format=json","web_url":"https://patchwork.libcamera.org/cover/10296/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20201029101629.61798-1-paul.elder@ideasonboard.com>","date":"2020-10-29T10:16:23","name":"[libcamera-devel,v3,0/6] Tracing","submitter":{"id":17,"url":"https://patchwork.libcamera.org/api/people/17/?format=json","name":"Paul Elder","email":"paul.elder@ideasonboard.com"},"mbox":"https://patchwork.libcamera.org/cover/10296/mbox/","series":[{"id":1432,"url":"https://patchwork.libcamera.org/api/series/1432/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=1432","date":"2020-10-29T10:16:23","name":"Tracing","version":3,"mbox":"https://patchwork.libcamera.org/series/1432/mbox/"}],"comments":"https://patchwork.libcamera.org/api/covers/10296/comments/","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 3D6F5BDB9B\n\tfor ;\n\tThu, 29 Oct 2020 10:16:41 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id B6CA662882;\n\tThu, 29 Oct 2020 11:16:40 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 76AFF62053\n\tfor ;\n\tThu, 29 Oct 2020 11:16:39 +0100 (CET)","from pyrite.rasen.tech (unknown\n\t[IPv6:2400:4051:61:600:2c71:1b79:d06d:5032])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id C135350E;\n\tThu, 29 Oct 2020 11:16:37 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"ZAD3quy6\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1603966599;\n\tbh=O3StPoTnh6uOzw/zVDvToc5FbrFoF0K8z568lGQDbZE=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=ZAD3quy603LMIAHMYmyB8/K6hqkUb8lL/p+3Pv+JoOEvQ7NmqblUbZrO913S3VVjz\n\tug9xXhZ7+hdLlP9lNmPi/TNA2tcDTTa80tKQ32185WuGdUD9NaWl24lMRHeGOBBIQ2\n\teeI/y6rQbkilww9ujts1fze4VYuIeasds0x8x4Dk=","From":"Paul Elder ","To":"libcamera-devel@lists.libcamera.org","Date":"Thu, 29 Oct 2020 19:16:23 +0900","Message-Id":"<20201029101629.61798-1-paul.elder@ideasonboard.com>","X-Mailer":"git-send-email 2.27.0","MIME-Version":"1.0","Subject":"[libcamera-devel] [PATCH v3 0/6] Tracing","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Implament tracing in libcamera. Add tracepoints to Request. Also add a\npair of tracepoints for measuring time taken for IPA calls, and make the\nraspberry pi pipeline handler use them.\n\nAdd a script to show how one can analyze traces programatically. The\nscript gathers statistics on time taken for IPA calls.\n\nAdd tracing documentation.\n\nChanges in v3:\n- add macros LIBCAMERA_TRACEPOINT_IPA_{BEGIN,END} for convenience for\n tracing IPA calls\n - this macro also makes it so that we can pass the pipeline and\n function name as symbols and not strings\n- add enum tracepoint values so we get nice enum strings in the trace\n output, instead of just ints\n- add pointer addresses to tracepoint fields so we can get addresses of\n objects in the trace output\n- upgrade the Request tracepoints\n- fix passing const strings into tracepoints without the need to cast\n- expand and fix documentation\n\nPaul Elder (6):\n libcamera: tracing: Implement tracing infrastructure\n libcamera: request: Add tracepoints\n tracepoints: Add pipeline tracepoints for tracing IPA calls\n pipeline: raspberrypi: Add IPA call tracepoints\n utils: tracepoints: Add simple statistics script\n Documentation: tracing: Add tracing guide\n\n Documentation/Doxyfile.in | 2 +\n Documentation/guides/tracing.rst | 140 ++++++++++++++++++\n Documentation/index.rst | 1 +\n Documentation/meson.build | 1 +\n README.rst | 3 +\n include/libcamera/internal/meson.build | 9 ++\n include/libcamera/internal/tracepoints.h.in | 62 ++++++++\n .../internal/tracepoints/meson.build | 6 +\n .../internal/tracepoints/pipeline.tp | 25 ++++\n .../libcamera/internal/tracepoints/request.tp | 90 +++++++++++\n meson.build | 3 +\n meson_options.txt | 5 +\n src/libcamera/meson.build | 7 +\n .../pipeline/raspberrypi/raspberrypi.cpp | 9 ++\n src/libcamera/request.cpp | 11 ++\n src/libcamera/tracepoints.cpp | 10 ++\n utils/meson.build | 1 +\n utils/tracepoints/analyze.py | 66 +++++++++\n utils/tracepoints/gen-tp-header.py | 38 +++++\n utils/tracepoints/meson.build | 5 +\n 20 files changed, 494 insertions(+)\n create mode 100644 Documentation/guides/tracing.rst\n create mode 100644 include/libcamera/internal/tracepoints.h.in\n create mode 100644 include/libcamera/internal/tracepoints/meson.build\n create mode 100644 include/libcamera/internal/tracepoints/pipeline.tp\n create mode 100644 include/libcamera/internal/tracepoints/request.tp\n create mode 100644 src/libcamera/tracepoints.cpp\n create mode 100755 utils/tracepoints/analyze.py\n create mode 100644 utils/tracepoints/gen-tp-header.py\n create mode 100644 utils/tracepoints/meson.build"}