Re: CONFIG_PRINTK_TIME woes

[Andrew Morton]

"David S. Miller" <davem@xxxxxxxxxxxxx> wrote:
>
> I really do need sub-microsecond timings when I put a lot of
> printk tracing into the stack.

How fast is printk?  I haven't looked.

ie: if you do back-to-back printk's, what's the timestamp increment?
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