From mboxrd@z Thu Jan  1 00:00:00 1970
From: Aaron Conole <aconole@redhat.com>
Subject: Re: [PATCH] app/testpmd: adds mlockall() to fix pages
Date: Tue, 12 Sep 2017 10:50:58 -0400
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References: <22990026376b08418cb0eb6f028840c03e89f47f.1505221429.git.echaudro@redhat.com>
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Cc: jingjing.wu@intel.com,  dev@dpdk.org
To: Eelco Chaudron <echaudro@redhat.com>
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 (Eelco Chaudron's message of "Tue, 12 Sep 2017 15:08:44 +0200")
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Eelco Chaudron <echaudro@redhat.com> writes:

> Call the mlockall() function, to attempt to lock all of its process
> memory into physical RAM, and preventing the kernel from paging any
> of its memory to disk.
>
> When using testpmd for performance testing, depending on the code path
> taken, we see a couple of page faults in a row. These faults effect
> the overall drop-rate of testpmd. On Linux the mlockall() call will
> prefault all the pages of testpmd (and the DPDK libraries if linked
> dynamically), even without LD_BIND_NOW.
>
> Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
> ---

Acked-by: Aaron Conole <aconole@redhat.com>