linux-kernel - Re: native_save_fl taking good amount of time in profile

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Message-ID: <CALKntY1b_m1zAvMWFm7_rtpLn5S8tjZg2=fwiM5B-qWFwAKYLA@mail.gmail.com>
Date:	Fri, 25 May 2012 19:10:20 -0400
From:	Xin Tong <xerox.time.tech@...il.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: native_save_fl taking good amount of time in profile

i do not know its callers from the profile. one thing i am suspicious
of is that my kernel debug-info is wrong. by the way, what does the
function do ?

Thanks

Xin


On Fri, May 25, 2012 at 6:27 PM, Andi Kleen <andi@...stfloor.org> wrote:
> Xin Tong <xerox.time.tech@...il.com> writes:
>
>> I have collected a profile on the whole system. But the only thing
>> that is really running is a mysql database server. I have noticed that
>> there is a function in kernel that took 5% of the overall running
>> time. what does native_save_fl do ? does it make sense that
>> native_save_fl takes the most amount of time among all kernel
>> functions ?
>
> What are the callers (-g)? It does not make sense normally.
> -Andi
>
> --
> ak@...ux.intel.com -- Speaking for myself only
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