Date: Sun, 28 Jan 2018 08:01:09 -0600 From: Adam Vande More <amvandemore@gmail.com> To: Yasuhiro KIMURA <yasu@utahime.org> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Difference in wainting time between update of base/doc/ports tree Message-ID: <CA%2BtpaK0ZjwwAcwhWJbGw0VRoTdWJueVwwOxOzSWLL=XNV1hFxg@mail.gmail.com> In-Reply-To: <20180128.170758.1927192209618154831.yasu@utahime.org> References: <20180128.072704.1527334119280589760.yasu@utahime.org> <CA%2BtpaK2%2BtgV0io7ba62VzMDuUETU_ijpWTKyJcTHP0FvKQ73NA@mail.gmail.com> <20180128.170758.1927192209618154831.yasu@utahime.org>
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On Sun, Jan 28, 2018 at 2:07 AM, Yasuhiro KIMURA <yasu@utahime.org> wrote: > From: Adam Vande More <amvandemore@gmail.com> > Subject: Re: Difference in wainting time between update of base/doc/ports > tree > Date: Sat, 27 Jan 2018 18:15:45 -0600 > > > It is most likely due to IO. There are tools to profile processes if you > > want empirical verification. > > I would like to know why this happens. So would you please tell me > what tools can be used to investigate it? FreeBSD version of my box is > 11.1-RELEASE amd64. > pcmstat or dtrace might be a good starting place. Then you can use something like https://github.com/brendangregg/FlameGraph to produce a more visual output if desired. -- Adam
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