From: Tony Lindgren <tony@atomide.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>,
Linux-OMAP <linux-omap@vger.kernel.org>
Subject: Re: Slow booting on x15
Date: Fri, 25 Sep 2020 14:51:47 +0300 [thread overview]
Message-ID: <20200925115147.GM9471@atomide.com> (raw)
In-Reply-To: <20200924133049.GH3968@pendragon.ideasonboard.com>
* Laurent Pinchart <laurent.pinchart@ideasonboard.com> [200924 13:31]:
> Hi Tony,
>
> On Thu, Sep 24, 2020 at 09:08:26AM +0300, Tony Lindgren wrote:
> > * Tomi Valkeinen <tomi.valkeinen@ti.com> [200924 06:05]:
> > > On 24/09/2020 08:53, Tony Lindgren wrote:
> > > >>>>> On Fri, Sep 18, 2020 at 06:25:02PM +0300, Tomi Valkeinen wrote:
> > > >>>>>> v5.9-rc5
> > > >>>>>> [ 0.706165] cpuidle: using governor menu
> > > >>>>>> [ 6.761812] No ATAGs?
> > > >>>>>>
> > > >>>>>> [ 19.522536] Run /sbin/init as init process
> > > >
> > > > Hmm v5.9-rc1 here with NFSroot shows this for me:
> > > >
> > > > [ 11.704511] Run /sbin/init as init process
> > > >
> > > > And v5.9-rc6 shows:
> > > >
> > > > [ 13.120913] Run /sbin/init as init process
> > > >
> > > > With at least two seconds spent on waiting for Ethernet PHY to
> > > > negotiate the speed. This is with omap2plus_defconfig.
> > >
> > > I'm also using nfsroot, so I didn't put too much weight on the "Run /sbin/init as init process"
> > > line, as it could also be caused the network or the nfs server. But the "No ATAGs" lines already
> > > show an increase from 0.8s to 6.7s from v5.7 to v5.9-rc5.
>
> Yes, that's the main issue.
>
> > That's strange, I'm seeing this with v5.9-rc6:
> >
> > [ 2.357585] No ATAGs?
>
> What's your test platform ?
This is from beagle x15. I wonder how Tomi is seeing over six seconds
at that point though while I'm seeing two something.
> Still, 1.5s spent there is quite a lot.
Probably that's when module_init runs and we probe almost everything.
Might be worth profiling to see if we can optimize out some full dtb
tree searches for example.
Regards,
Tony
next prev parent reply other threads:[~2020-09-25 11:51 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-18 15:25 Slow booting on x15 Tomi Valkeinen
2020-09-18 15:58 ` Laurent Pinchart
2020-09-23 7:07 ` Tony Lindgren
2020-09-23 11:13 ` Laurent Pinchart
2020-09-24 5:42 ` Tony Lindgren
2020-09-24 5:53 ` Tony Lindgren
2020-09-24 6:04 ` Tomi Valkeinen
2020-09-24 6:08 ` Tony Lindgren
2020-09-24 13:30 ` Laurent Pinchart
2020-09-25 11:51 ` Tony Lindgren [this message]
2020-09-25 11:58 ` Laurent Pinchart
2020-09-30 5:20 ` Tony Lindgren
2020-09-30 12:41 ` Peter Ujfalusi
2020-10-01 7:53 ` Tony Lindgren
2020-10-01 8:17 ` Tony Lindgren
2020-10-01 8:22 ` Laurent Pinchart
2020-10-01 12:56 ` Grygorii Strashko
2020-10-01 13:11 ` Geert Uytterhoeven
2020-10-01 13:49 ` Grygorii Strashko
2020-10-01 18:24 ` Saravana Kannan
2020-10-01 19:43 ` Grygorii Strashko
2020-10-01 22:22 ` Saravana Kannan
2020-10-01 22:30 ` Saravana Kannan
2020-10-01 22:38 ` Laurent Pinchart
2020-10-01 22:44 ` Saravana Kannan
2020-10-01 22:59 ` [PATCH v1] of: platform: Batch fwnode parsing in the init_machine() path Saravana Kannan
2020-10-01 23:19 ` Laurent Pinchart
2020-10-02 11:40 ` Grygorii Strashko
2020-10-02 15:03 ` Grygorii Strashko
2020-10-02 17:48 ` Saravana Kannan
2020-10-02 18:11 ` Grygorii Strashko
2020-10-02 14:07 ` Rob Herring
2020-10-02 17:51 ` Saravana Kannan
2020-10-02 17:54 ` Laurent Pinchart
2020-10-02 17:58 ` Saravana Kannan
2020-10-02 18:27 ` Laurent Pinchart
2020-10-02 18:35 ` Grygorii Strashko
2020-10-02 19:56 ` Saravana Kannan
2020-10-03 0:13 ` Laurent Pinchart
2020-10-27 3:29 ` Saravana Kannan
2020-10-28 7:34 ` Tomi Valkeinen
2020-10-02 20:29 ` Rob Herring
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