DPDK usage discussions
 help / color / mirror / Atom feed
From: "Neeraj Tandon (netandon)" <netandon@cisco.com>
To: "users@dpdk.org" <users@dpdk.org>
Subject: [dpdk-users] Mechanism to increase MBUF allocation
Date: Mon, 15 May 2017 07:14:03 +0000	[thread overview]
Message-ID: <D53EA347.DAED6%netandon@cisco.com> (raw)

Hi,

I have recently started using DPDK.  I have based my application on l2fwd application.  In my application, I am holding buffers for  a period of time and freeing the mbuf in another thread. The default number of MBUF is 8192 . I have two questions regarding this:


  1.  How to increase number of MBUFS : For this increasing NB_MBUF and calling  is not having any effect I.e I loose packet when packets > 8192 are sent in burst. I see following used for creating mbuf pool:

/* create the mbuf pool */
l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
rte_socket_id());

If I want to increase MBUF to say 65536 what should I do ?

      2. I am receiving packets in RX thread which is running on Core 2 and freeing on a thread which I launched using PHREAD and runs on Core 0 . Any implications for this kind of mechanism

Thanks for the support and keeping forum active.

Regards,
Neenah

             reply	other threads:[~2017-05-15  7:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-15  7:14 Neeraj Tandon (netandon) [this message]
2017-05-17  3:27 Neeraj Tandon (netandon)
2017-05-18 20:21 ` Neeraj Tandon (netandon)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=D53EA347.DAED6%netandon@cisco.com \
    --to=netandon@cisco.com \
    --cc=users@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).