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{ "id": 11317, "url": "https://patchwork.libcamera.org/api/patches/11317/?format=api", "web_url": "https://patchwork.libcamera.org/patch/11317/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/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": "<20210217092937.17167-2-paul.elder@ideasonboard.com>", "date": "2021-02-17T09:29:37", "name": "[libcamera-devel,2/2] utils: tracepoints: ipa call analyzer: Fix std dev calculation for single value", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3ef3c5a0d26d3fca594e9363d0321aac8ad016e3", "submitter": { "id": 17, "url": "https://patchwork.libcamera.org/api/people/17/?format=api", "name": "Paul Elder", "email": "paul.elder@ideasonboard.com" }, "delegate": { "id": 17, "url": "https://patchwork.libcamera.org/api/users/17/?format=api", "username": "epaul", "first_name": "Paul", "last_name": "Elder", "email": "paul.elder@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/patch/11317/mbox/", "series": [ { "id": 1699, "url": "https://patchwork.libcamera.org/api/series/1699/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1699", "date": "2021-02-17T09:29:36", "name": "[libcamera-devel,1/2] utils: ipc: Generate tracepoints for IPA calls", "version": 1, "mbox": "https://patchwork.libcamera.org/series/1699/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/11317/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/11317/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "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 03B4BBD1F1\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 17 Feb 2021 09:29:55 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id C48BC637FA;\n\tWed, 17 Feb 2021 10:29:54 +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 9251B637FA\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 17 Feb 2021 10:29:53 +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 EB3718C4;\n\tWed, 17 Feb 2021 10:29:51 +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=\"hrFjpYFf\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1613554193;\n\tbh=SU8/E068vHsuNjFU0poZ7rITK9w2vs+6KmVek7pZxIU=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=hrFjpYFfeDuDvVwFKAmTTA+zuu14VFtqWyAE0jUrFdg8Mr8wnSEmDVFCRpc/CucmH\n\tN6NBg/XQd43VgLNra2K/CbmtXHpyc4VaAhHAVn8Q9N/MXfl+ZL5o+X9Qi5VXABmxad\n\tiidz4M7auqah8tKVpHvhoiM0nZXzsybvKDubpx20=", "From": "Paul Elder <paul.elder@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Wed, 17 Feb 2021 18:29:37 +0900", "Message-Id": "<20210217092937.17167-2-paul.elder@ideasonboard.com>", "X-Mailer": "git-send-email 2.27.0", "In-Reply-To": "<20210217092937.17167-1-paul.elder@ideasonboard.com>", "References": "<20210217092937.17167-1-paul.elder@ideasonboard.com>", "MIME-Version": "1.0", "Subject": "[libcamera-devel] [PATCH 2/2] utils: tracepoints: ipa call\n\tanalyzer: Fix std dev calculation for single value", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "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>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Some IPA calls might only be called once, such as configure(), start(),\nstop(), etc. This causes the analyzer to break as stddev() on a single\nvalue is invalid. Set the stddev to zero if there is only one datapoint.\n\nSigned-off-by: Paul Elder <paul.elder@ideasonboard.com>\n---\n utils/tracepoints/analyze-ipa-trace.py | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/utils/tracepoints/analyze-ipa-trace.py b/utils/tracepoints/analyze-ipa-trace.py\nindex 50fbbf42..cd7e9ffc 100755\n--- a/utils/tracepoints/analyze-ipa-trace.py\n+++ b/utils/tracepoints/analyze-ipa-trace.py\n@@ -58,7 +58,7 @@ def main(argv):\n rows.append(['pipeline:function', 'min', 'max', 'mean', 'stddev'])\n for k, v in samples.items():\n mean = int(stats.mean(v))\n- stddev = int(stats.stdev(v))\n+ stddev = int(stats.stdev(v)) if len(v) > 1 else 0\n minv = min(v)\n maxv = max(v)\n rows.append([k, str(minv), str(maxv), str(mean), str(stddev)])\n", "prefixes": [ "libcamera-devel", "2/2" ] }