From: Dmitry Vyal <dmitryvyal@gmail.com>
To: Robert Sanford <rsanford@prolexic.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] How to fight forwarding performance regression on large mempool sizes.
Date: Fri, 20 Sep 2013 10:48:03 +0400 [thread overview]
Message-ID: <523BEFA3.4070209@gmail.com> (raw)
In-Reply-To: <CAFmpvUNzbi7zsAOHeaR5KpX_OBpa_g-TLDr5FYmddqGGAX9pSA@mail.gmail.com>
On 09/19/2013 11:39 PM, Robert Sanford wrote:
> Hi Dmitry,
>
> The biggest drop-off seems to be from size 128K to 256K. Are you using
> 1GB huge pages already (rather than 2MB)?
>
> I would think that it would not use over 1GB until you ask for 512K
> mbufs or more.
>
Hi Robert,
Yes, I've been using 1GB pages for a while. My L3 cache is 20MB and
mbufs are 2240 bytes of size. So something strange indeed happens then
we move from ~200MB to ~400MB. Any ideas?
Regards,
Dmitry
next prev parent reply other threads:[~2013-09-20 6:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-19 7:50 Dmitry Vyal
2013-09-19 19:39 ` Robert Sanford
2013-09-19 19:43 ` Venkatesan, Venky
2013-09-20 6:50 ` Dmitry Vyal
2013-09-20 6:48 ` Dmitry Vyal [this message]
2013-09-20 14:41 ` Robert Sanford
2013-09-20 15:34 ` Robert Sanford
2013-09-22 19:03 ` Dmitry Vyal
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