Re: increased vmap_area_lock contentions on "n_tty: Move buffersinto n_tty_data"

[Greg KH]

On Fri, Sep 13, 2013 at 08:51:33AM +0800, Fengguang Wu wrote:
> Hi Peter,
> 
> FYI, we noticed much increased vmap_area_lock contentions since this
> commit:

What does that mean?  What is happening, are we allocating/removing more
memory now?

What type of load were you running that showed this problem?

thanks,

greg k-h
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