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Date: Mon, 22 Aug 2005 15:33:16 -0700
From: tony.luck@intel.com
Message-Id: <200508222233.j7MMXGWj020872@agluck-lia64.sc.intel.com>
To: Andrew Morton <akpm@osdl.org>
To: "David S. Miller" <davem@davemloft.net>
Cc: jasonuhl@sgi.com, linux-kernel@vger.kernel.org
Subject: Re: CONFIG_PRINTK_TIME woes
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>How fast is printk?  I haven't looked.
>
>ie: if you do back-to-back printk's, what's the timestamp increment?

On ia64 it looks like about 4-5 usec increment for back-to-back
printk (with no serial console configured, and dmesg -n to turn
off messages to the VGA console).

-Tony