Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 8 Oct 2008 11:16:10 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        =?gb2312?q?=C7=F1=BD=A3?= <qj@huawei.com>
Cc:        freebsd-net@freebsd.org, freebsd-questions@freebsd.org, freebsd-threads@freebsd.org
Subject:   Re: kernel profiling: spinlock_exit consumes 36% CPU time.
Message-ID:  <200810081116.10298.jhb@freebsd.org>
In-Reply-To: <000a01c9291a$b81fa560$01000001@china.huawei.com>
References:  <000a01c9291a$b81fa560$01000001@china.huawei.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday 08 October 2008 03:51:48 am =C7=F1=BD=A3 wrote:
> Many thanks for the information.
>=20
> Could we say that interrupt handlers consumed ~36% execution time?
>=20
> Is this number too high? Is it possible that we abuse the use of critical
> sections in kernel?

I think whether or not it is high depends on the workload.

=2D-=20
John Baldwin



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200810081116.10298.jhb>