From: Arnd Bergmann <arnd@arndb.de>
To: "Russell King - ARM Linux" <linux@arm.linux.org.uk>
Cc: Lee Jones <lee.jones@linaro.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
Dan Murphy <dmurphy@ti.com>, Nishanth Menon <nm@ti.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linus.walleij@stericsson.com,
Jonas Aaberg <jonas.aberg@stericsson.com>,
Will Deacon <will.deacon@arm.com>,
Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Subject: Re: [PATCH] Boottime: A tool for automatic measurement of kernel/bootloader boot time
Date: Fri, 12 Oct 2012 13:53:16 +0000 [thread overview]
Message-ID: <201210121353.16798.arnd@arndb.de> (raw)
In-Reply-To: <20121012134813.GK21164@n2100.arm.linux.org.uk>
On Friday 12 October 2012, Russell King - ARM Linux wrote:
> > root@ME:/ cat /sys/kernel/debug/boottime/bootgraph
> > [ 0.185254] calling splash+0x0/0x0
> > [ 2.984335] initcall splash+0x0/0x0 returned 0 after 2799 msecs.
> > [ 2.984335] calling autoboot_delay+0x0/0x0
> > [ 4.089513] initcall autoboot_delay+0x0/0x0 returned 0 after 1105 msecs.
> > [ 4.089513] calling load_kernel+0x0/0x0
> > [ 4.239174] initcall load_kernel+0x0/0x0 returned 0 after 149 msecs.
> > [ 4.239174] calling boot_kernel+0x0/0x0
> > [ 4.276260] initcall boot_kernel+0x0/0x0 returned 0 after 37 msecs.
> > [ 4.276260] calling uncompress_ll_init+0x0/0x0
> > [ 4.276260] initcall uncompress_ll_init+0x0/0x0 returned 0 after 0 msecs.
> > [ 4.276260] Freeing init memory: 0K
>
> Umm, what happened to sysfs not becoming procfs v2? I thought we had
> a fairly strict requirement for "one value per file and not nicely
> formatted" for sysfs?
>
I was thinking the same thing at first, but then I noticed it's actually
debugfs, which has no such rules.
Arnd
next prev parent reply other threads:[~2012-10-12 13:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-11 14:42 [PATCH] Boottime: A tool for automatic measurement of kernel/bootloader boot time Lee Jones
2012-10-11 15:24 ` Christian Gmeiner
2012-10-11 15:36 ` Lee Jones
2012-10-11 20:17 ` Nishanth Menon
2012-10-12 9:37 ` Lee Jones
2012-10-12 9:51 ` Lee Jones
2012-10-12 13:35 ` Dan Murphy
2012-10-12 13:45 ` Lee Jones
2012-10-12 13:48 ` Russell King - ARM Linux
2012-10-12 13:53 ` Arnd Bergmann [this message]
2012-10-12 14:01 ` Lee Jones
2012-10-12 16:36 ` Dan Murphy
2012-10-12 16:42 ` Lee Jones
2012-10-15 15:52 ` Dan Murphy
2012-10-16 7:34 ` Lee Jones
2012-10-23 7:19 ` Lee Jones
2013-06-09 8:17 ` Steve Liu
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