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Date: Sun, 17 May 2009 21:11:13 +0800
From: Wu Fengguang <fengguang.wu@intel.com>
To: Satish Eerpini <eerpini@gmail.com>
Cc: Rik van Riel <riel@redhat.com>, Ray Lee <ray-lk@madrabbit.org>,
       Christoph Lameter <cl@linux-foundation.org>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: unresponsiveness on linux desktop during file copy
Message-ID: <20090517131113.GA25195@localhost>
References: <20090517020829.GB6809@localhost> <93655eb70905162130k13ebd627o5eba2582508a1c07@mail.gmail.com> <20090517045800.GA32723@localhost> <93655eb70905162318oeccafa9p76b5594f9625aefc@mail.gmail.com> <20090517093004.GA2635@localhost> <93655eb70905170501q3caf04acj761ff61b539b7d40@mail.gmail.com> <20090517121711.GA3583@localhost> <93655eb70905170527t490653dge6e25a9e3724a918@mail.gmail.com> <20090517123914.GA4221@localhost> <93655eb70905170603n50af7b7en2e2161e56ba91db9@mail.gmail.com>
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On Sun, May 17, 2009 at 09:03:48PM +0800, Satish Eerpini wrote:
> > Or maybe the time is spent in gnome-terminal or bash?
> > What if you change them to xterm and dash?
> >
> ok here you go , I ran "strace -o log -tt clear " on xterm and dash :
> 
> "log "

Again, it's pretty fast: 

begin with:
> 18:31:02.162301 execve("/usr/bin/clear", ["clear"], [/* 49 vars */]) = 0

end with:
> 18:31:02.167613 exit_group(0)           = ?

So the elapsed time for "clear" is about 5ms.