From: Younger Liu <younger.liucn@gmail.com>
To: kernel <linux-kernel@vger.kernel.org>
Subject: Question: Takes about 2s in sched_clock_init() when kernel boots
Date: Thu, 31 Oct 2013 13:29:16 +0800 [thread overview]
Message-ID: <5271EAAC.7080304@gmail.com> (raw)
Hi,
When I analyse boot time on ArmV7, I found that it takes
about 2s in sched_clock_init(), the log is as follow:
[ 0.000000] before:sched_clock_init.
[ 0.000000] start:sched_clock_init.
[ 2.100505] end :sched_clock_init.
[ 2.103983] before:calibrate_delay.
In my config, CONFIG_HAVE_UNSTABLE_SCHED_CLOCK does not config.
Are there any suggestions?
Younger
next reply other threads:[~2013-10-31 5:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-31 5:29 Younger Liu [this message]
2013-10-31 6:12 ` Question: Takes about 2s in sched_clock_init() when kernel boots Xie XiuQi
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