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{
    "id": 21574,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/21574/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/21574/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20241009200110.275544-4-hdegoede@redhat.com>",
    "date": "2024-10-09T20:01:09",
    "name": "[RFC,3/4] libcamera: software_isp: Move benchmark code to its own class",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "7550ad23e1e29950470554c15ecd48e452188a27",
    "submitter": {
        "id": 102,
        "url": "https://patchwork.libcamera.org/api/1.1/people/102/?format=api",
        "name": "Hans de Goede",
        "email": "hdegoede@redhat.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/21574/mbox/",
    "series": [
        {
            "id": 4678,
            "url": "https://patchwork.libcamera.org/api/1.1/series/4678/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4678",
            "date": "2024-10-09T20:01:06",
            "name": "libcamera: swstats_cpu: Add processFrame() method",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/4678/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/21574/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/21574/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
        "Delivered-To": "parsemail@patchwork.libcamera.org",
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        ],
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        "X-MC-Unique": "be5ZwOUiM2GZl0ECkGY-tw-1",
        "From": "Hans de Goede <hdegoede@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Milan Zamazal <mzamazal@redhat.com>, Maxime Ripard <mripard@redhat.com>, \n\tHans de Goede <hdegoede@redhat.com>",
        "Subject": "[RFC 3/4] libcamera: software_isp: Move benchmark code to its own\n\tclass",
        "Date": "Wed,  9 Oct 2024 22:01:09 +0200",
        "Message-ID": "<20241009200110.275544-4-hdegoede@redhat.com>",
        "In-Reply-To": "<20241009200110.275544-1-hdegoede@redhat.com>",
        "References": "<20241009200110.275544-1-hdegoede@redhat.com>",
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        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
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        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
        "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>",
        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
        "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>",
        "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>",
        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Move the code for the builtin benchmark to its own small\nBenchmark class.\n\nSigned-off-by: Hans de Goede <hdegoede@redhat.com>\n---\n src/libcamera/software_isp/benchmark.cpp   | 78 ++++++++++++++++++++++\n src/libcamera/software_isp/benchmark.h     | 36 ++++++++++\n src/libcamera/software_isp/debayer_cpu.cpp | 32 +--------\n src/libcamera/software_isp/debayer_cpu.h   |  7 +-\n src/libcamera/software_isp/meson.build     |  1 +\n 5 files changed, 119 insertions(+), 35 deletions(-)\n create mode 100644 src/libcamera/software_isp/benchmark.cpp\n create mode 100644 src/libcamera/software_isp/benchmark.h",
    "diff": "diff --git a/src/libcamera/software_isp/benchmark.cpp b/src/libcamera/software_isp/benchmark.cpp\nnew file mode 100644\nindex 00000000..eecad51c\n--- /dev/null\n+++ b/src/libcamera/software_isp/benchmark.cpp\n@@ -0,0 +1,78 @@\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/*\n+ * Copyright (C) 2024, Red Hat Inc.\n+ *\n+ * Authors:\n+ * Hans de Goede <hdegoede@redhat.com>\n+ *\n+ * Simple builtin benchmark to measure software ISP processing times\n+ */\n+\n+#include \"benchmark.h\"\n+\n+#include <libcamera/base/log.h>\n+\n+namespace libcamera {\n+\n+LOG_DEFINE_CATEGORY(Benchmark)\n+\n+/**\n+ * \\class Benchmark\n+ * \\brief Simple builtin benchmark\n+ *\n+ * Simple builtin benchmark to measure software ISP processing times.\n+ */\n+\n+/**\n+ * \\brief Constructs a Benchmark object\n+ */\n+Benchmark::Benchmark()\n+\t: measuredFrames_(0), frameProcessTime_(0)\n+{\n+}\n+\n+Benchmark::~Benchmark()\n+{\n+}\n+\n+static inline int64_t timeDiff(timespec &after, timespec &before)\n+{\n+\treturn (after.tv_sec - before.tv_sec) * 1000000000LL +\n+\t       (int64_t)after.tv_nsec - (int64_t)before.tv_nsec;\n+}\n+\n+void Benchmark::startFrame(void)\n+{\n+\tif (measuredFrames_ >= Benchmark::kLastFrameToMeasure)\n+\t\treturn;\n+\n+\tframeStartTime_ = {};\n+\tclock_gettime(CLOCK_MONOTONIC_RAW, &frameStartTime_);\n+}\n+\n+void Benchmark::finishFrame(void)\n+{\n+\tif (measuredFrames_ >= Benchmark::kLastFrameToMeasure)\n+\t\treturn;\n+\n+\tmeasuredFrames_++;\n+\n+\tif (measuredFrames_ <= Benchmark::kFramesToSkip)\n+\t\treturn;\n+\n+\ttimespec frameEndTime = {};\n+\tclock_gettime(CLOCK_MONOTONIC_RAW, &frameEndTime);\n+\tframeProcessTime_ += timeDiff(frameEndTime, frameStartTime_);\n+\n+\tif (measuredFrames_ == Benchmark::kLastFrameToMeasure) {\n+\t\tconst unsigned int measuredFrames = Benchmark::kLastFrameToMeasure -\n+\t\t\t\t\t\t    Benchmark::kFramesToSkip;\n+\t\tLOG(Benchmark, Info)\n+\t\t\t<< \"Processed \" << measuredFrames\n+\t\t\t<< \" frames in \" << frameProcessTime_ / 1000 << \"us, \"\n+\t\t\t<< frameProcessTime_ / (1000 * measuredFrames)\n+\t\t\t<< \" us/frame\";\n+\t}\n+}\n+\n+} /* namespace libcamera */\ndiff --git a/src/libcamera/software_isp/benchmark.h b/src/libcamera/software_isp/benchmark.h\nnew file mode 100644\nindex 00000000..8af25015\n--- /dev/null\n+++ b/src/libcamera/software_isp/benchmark.h\n@@ -0,0 +1,36 @@\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/*\n+ * Copyright (C) 2024, Red Hat Inc.\n+ *\n+ * Authors:\n+ * Hans de Goede <hdegoede@redhat.com>\n+ *\n+ * Simple builtin benchmark to measure software ISP processing times\n+ */\n+\n+#pragma once\n+\n+#include <stdint.h>\n+#include <time.h>\n+\n+namespace libcamera {\n+\n+class Benchmark\n+{\n+public:\n+\tBenchmark();\n+\t~Benchmark();\n+\n+\tvoid startFrame(void);\n+\tvoid finishFrame(void);\n+\n+private:\n+\tunsigned int measuredFrames_;\n+\tint64_t frameProcessTime_;\n+\ttimespec frameStartTime_;\n+\t/* Skip 30 frames for things to stabilize then measure 30 frames */\n+\tstatic constexpr unsigned int kFramesToSkip = 30;\n+\tstatic constexpr unsigned int kLastFrameToMeasure = 60;\n+};\n+\n+} /* namespace libcamera */\ndiff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp\nindex cf5ecdf7..897fb83b 100644\n--- a/src/libcamera/software_isp/debayer_cpu.cpp\n+++ b/src/libcamera/software_isp/debayer_cpu.cpp\n@@ -528,9 +528,6 @@ int DebayerCpu::configure(const StreamConfiguration &inputCfg,\n \t\t\tlineBuffers_[i].resize(lineBufferLength_);\n \t}\n \n-\tmeasuredFrames_ = 0;\n-\tframeProcessTime_ = 0;\n-\n \treturn 0;\n }\n \n@@ -739,22 +736,11 @@ void syncBufferForCPU(FrameBuffer *buffer, uint64_t syncFlags)\n \t}\n }\n \n-inline int64_t timeDiff(timespec &after, timespec &before)\n-{\n-\treturn (after.tv_sec - before.tv_sec) * 1000000000LL +\n-\t       (int64_t)after.tv_nsec - (int64_t)before.tv_nsec;\n-}\n-\n } /* namespace */\n \n void DebayerCpu::process(uint32_t frame, FrameBuffer *input, FrameBuffer *output, DebayerParams params)\n {\n-\ttimespec frameStartTime;\n-\n-\tif (measuredFrames_ < DebayerCpu::kLastFrameToMeasure) {\n-\t\tframeStartTime = {};\n-\t\tclock_gettime(CLOCK_MONOTONIC_RAW, &frameStartTime);\n-\t}\n+\tbench_.startFrame();\n \n \tsyncBufferForCPU(input, DMA_BUF_SYNC_START | DMA_BUF_SYNC_READ);\n \tsyncBufferForCPU(output, DMA_BUF_SYNC_START | DMA_BUF_SYNC_WRITE);\n@@ -790,21 +776,7 @@ void DebayerCpu::process(uint32_t frame, FrameBuffer *input, FrameBuffer *output\n \tsyncBufferForCPU(input, DMA_BUF_SYNC_END | DMA_BUF_SYNC_READ);\n \n \t/* Measure before emitting signals */\n-\tif (measuredFrames_ < DebayerCpu::kLastFrameToMeasure &&\n-\t    ++measuredFrames_ > DebayerCpu::kFramesToSkip) {\n-\t\ttimespec frameEndTime = {};\n-\t\tclock_gettime(CLOCK_MONOTONIC_RAW, &frameEndTime);\n-\t\tframeProcessTime_ += timeDiff(frameEndTime, frameStartTime);\n-\t\tif (measuredFrames_ == DebayerCpu::kLastFrameToMeasure) {\n-\t\t\tconst unsigned int measuredFrames = DebayerCpu::kLastFrameToMeasure -\n-\t\t\t\t\t\t\t    DebayerCpu::kFramesToSkip;\n-\t\t\tLOG(Debayer, Info)\n-\t\t\t\t<< \"Processed \" << measuredFrames\n-\t\t\t\t<< \" frames in \" << frameProcessTime_ / 1000 << \"us, \"\n-\t\t\t\t<< frameProcessTime_ / (1000 * measuredFrames)\n-\t\t\t\t<< \" us/frame\";\n-\t\t}\n-\t}\n+\tbench_.finishFrame();\n \n \t/*\n \t * Buffer ids are currently not used, so pass zeros as its parameter.\ndiff --git a/src/libcamera/software_isp/debayer_cpu.h b/src/libcamera/software_isp/debayer_cpu.h\nindex 2c47e7c6..59015479 100644\n--- a/src/libcamera/software_isp/debayer_cpu.h\n+++ b/src/libcamera/software_isp/debayer_cpu.h\n@@ -19,6 +19,7 @@\n \n #include \"libcamera/internal/bayer_format.h\"\n \n+#include \"benchmark.h\"\n #include \"debayer.h\"\n #include \"swstats_cpu.h\"\n \n@@ -153,11 +154,7 @@ private:\n \tunsigned int xShift_; /* Offset of 0/1 applied to window_.x */\n \tbool enableInputMemcpy_;\n \tbool swapRedBlueGains_;\n-\tunsigned int measuredFrames_;\n-\tint64_t frameProcessTime_;\n-\t/* Skip 30 frames for things to stabilize then measure 30 frames */\n-\tstatic constexpr unsigned int kFramesToSkip = 30;\n-\tstatic constexpr unsigned int kLastFrameToMeasure = 60;\n+\tBenchmark bench_;\n };\n \n } /* namespace libcamera */\ndiff --git a/src/libcamera/software_isp/meson.build b/src/libcamera/software_isp/meson.build\nindex aac7eda7..59fa5f02 100644\n--- a/src/libcamera/software_isp/meson.build\n+++ b/src/libcamera/software_isp/meson.build\n@@ -8,6 +8,7 @@ if not softisp_enabled\n endif\n \n libcamera_internal_sources += files([\n+    'benchmark.cpp',\n     'debayer.cpp',\n     'debayer_cpu.cpp',\n     'software_isp.cpp',\n",
    "prefixes": [
        "RFC",
        "3/4"
    ]
}