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Tue, 19 Feb 2019 09:28:21 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas1p1.samsung.com (KnoxPortal) with ESMTPA id 20190219002821epcas1p14486ed9c4a1fbb892ff03601fa109437~EnF5u5AgJ1685516855epcas1p11; Tue, 19 Feb 2019 00:28:21 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20190219002821epsmtrp1a2bfd5b2b034f7e468f030377f00f1b3~EnF5tp2Be1032510325epsmtrp1N; Tue, 19 Feb 2019 00:28:21 +0000 (GMT) X-AuditID: b6c32a37-989ff70000000fe5-c0-5c6b4da5a8b7 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id C4.15.03971.4AD4B6C5; Tue, 19 Feb 2019 09:28:20 +0900 (KST) Received: from [10.113.221.102] (unknown [10.113.221.102]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20190219002820epsmtip20a66b7f1508ba1b2253bbdd4a8d282e8~EnF5dyhbC3134931349epsmtip2V; Tue, 19 Feb 2019 00:28:20 +0000 (GMT) Subject: Re: [PATCH v3 2/2] drivers: devfreq: add tracing for scheduling work To: Lukasz Luba , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: b.zolnierkie@samsung.com, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, m.szyprowski@samsung.com, s.nawrocki@samsung.com, mka@chromium.org, rostedt@goodmis.org, mingo@redhat.com From: Chanwoo Choi Organization: Samsung Electronics Message-ID: <2bc86822-9861-66d5-0a7e-d3d45494772c@samsung.com> Date: Tue, 19 Feb 2019 09:28:20 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <1550514069-9237-3-git-send-email-l.luba@partner.samsung.com> Content-Language: en-US Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHJsWRmVeSWpSXmKPExsWy7bCmvu5S3+wYg9fvJSw2zljPanG26Q27 xa0GGYvLu+awWXzuPcJosfbIXXaLSwcWMFl83vCY0eJ24wo2i30dD5gsDr9pZ3Xg9pjdcJHF o2XfLXaPg+/2MHm833eVzaNvyypGj8+b5ALYorJtMlITU1KLFFLzkvNTMvPSbZW8g+Od403N DAx1DS0tzJUU8hJzU22VXHwCdN0yc4DOU1IoS8wpBQoFJBYXK+nb2RTll5akKmTkF5fYKqUW pOQUWBboFSfmFpfmpesl5+daGRoYGJkCFSZkZ+w5toSx4C1Hxdqpp9gaGGexdzFyckgImEis fbyWtYuRi0NIYAejxN7Fc5kgnE+MEu8Wv4JyvjFK3Lg9jQ2m5cyjw4wQib2MEkvnLYNy3jNK 3GyfxQhSJSzgL3Hw8FewDhGBNIm37XfBRjELHGCUeLRyBdh2NgEtif0vboAV8QsoSlz98Ris mVfATmJ+2w/mLkYODhYBVYlZP91AwqICERKHe99BlQhKnJz5hAXE5hTwknjc84QJxGYWEJe4 9WQ+lC0v0bx1NjPIXgmBfnaJtSdfMUK84CKx+cAkZghbWOLV8S3Q0JCSeNnfBmVXS6w8eYQN ormDUWLL/gusEAljif1LJzOBHMcsoCmxfpc+xDI+iXdfe1hBwhICvBIdbUIQ1coSlx/cZYKw JSUWt3dCQ9FD4vrpJ4wTGBVnIXlnFpIXZiF5YRbCsgWMLKsYxVILinPTU4sNC4yRo3sTIzjt apnvYNxwzucQowAHoxIP74LlWTFCrIllxZW5hxglOJiVRHgXeWbHCPGmJFZWpRblxxeV5qQW H2I0BQb2RGYp0eR8YE7IK4k3NDUyNja2MDE0MzU0VBLnXe/gHCMkkJ5YkpqdmlqQWgTTx8TB KdXAKMcm93LZ1LUXQw743v2S+sakfWlg4pLH3LZFDmlXOXY2FnKseXasKXLrF+utB7b4xH8J OjqB9cYnt8qFyvMSVyzfdzM7iOdl0WMvpTr/a30qWmcT+NgiNqfOmDb5Y+rBdSou70umKopM uvNo6vR76QKblxjJlEluiPIIWnj8x4X9mvz1VvO3sCqxFGckGmoxFxUnAgBvognd0QMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrGIsWRmVeSWpSXmKPExsWy7bCSvO4S3+wYg993bSw2zljPanG26Q27 xa0GGYvLu+awWXzuPcJosfbIXXaLSwcWMFl83vCY0eJ24wo2i30dD5gsDr9pZ3Xg9pjdcJHF o2XfLXaPg+/2MHm833eVzaNvyypGj8+b5ALYorhsUlJzMstSi/TtErgy9hxbwljwlqNi7dRT bA2Ms9i7GDk5JARMJM48OszYxcjFISSwm1Gi8eNZZoiEpMS0i0eBbA4gW1ji8OFiiJq3jBIb 1i1hB4kLC/hK/PhfA1IuIpAmcajhNthMZoEDjBLNN30g6u8ySnz79JoNJMEmoCWx/8UNMJtf QFHi6o/HjCA2r4CdxPy2H2C7WARUJWb9dAMJiwpESHx8uo8JokRQ4uTMJywgNqeAl8TjnidM ELvUJf7Mu8QMYYtL3HoyHyouL9G8dTbzBEbhWUjaZyFpmYWkZRaSlgWMLKsYJVMLinPTc4sN CwzzUsv1ihNzi0vz0vWS83M3MYJjT0tzB+PlJfGHGAU4GJV4eBcsz4oRYk0sK67MPcQowcGs JMK7yDM7Rog3JbGyKrUoP76oNCe1+BCjNAeLkjjv07xjkUIC6YklqdmpqQWpRTBZJg5OqQbG 2VG9PyMWZvrPemZysuRaMycbj07pi1kqvhtned1be0ih7n3Qn3zhz16X2t91n8u4tLVo4ZP2 P8p8aZM+nxA/u/c1t+eLaqZZC7sD910pt/BULJe9PzWjSHeBJHtlFmutksv9nG+ck2+t6dCd l7jY5SbLtL6QL1OMuo7rtp7yCvjCzHS2JnWJEktxRqKhFnNRcSIApKYYHrkCAAA= X-CMS-MailID: 20190219002821epcas1p14486ed9c4a1fbb892ff03601fa109437 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20190218182129eucas1p1804530445570fc73af89ed46b9a448b9 References: <1550514069-9237-1-git-send-email-l.luba@partner.samsung.com> <1550514069-9237-3-git-send-email-l.luba@partner.samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Lukasz, On 19. 2. 19. 오전 3:21, Lukasz Luba wrote: > This patch add basic tracing of the devfreq workqueue and delayed work. > It aims to capture changes of the polling intervals and device state. > > Signed-off-by: Lukasz Luba > --- > drivers/devfreq/devfreq.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c > index 0ae3de7..660365a 100644 > --- a/drivers/devfreq/devfreq.c > +++ b/drivers/devfreq/devfreq.c > @@ -29,6 +29,9 @@ > #include > #include "governor.h" > > +#define CREATE_TRACE_POINTS > +#include > + > static struct class *devfreq_class; > > /* > @@ -394,6 +397,8 @@ static void devfreq_monitor(struct work_struct *work) > queue_delayed_work(devfreq_wq, &devfreq->work, > msecs_to_jiffies(devfreq->profile->polling_ms)); > mutex_unlock(&devfreq->lock); > + > + trace_devfreq_monitor(devfreq); > } > > /** > Reviewed-by: Chanwoo Choi -- Best Regards, Chanwoo Choi Samsung Electronics