DPDK usage discussions
 help / color / mirror / Atom feed
From: "Hu, Xuekun" <xuekun.hu@intel.com>
To: Chae-yong Chong <cychong@gmail.com>, "users@dpdk.org" <users@dpdk.org>
Subject: Re: [dpdk-users] Too much time in mmap()
Date: Wed, 4 Jan 2017 01:17:31 +0000	[thread overview]
Message-ID: <88A92D351643BA4CB23E30315517062662F61FD0@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <CADQQtgr6uudQYqzNOpjS5dBvgRY1O1FUfMv=HqBeizfvD5T4QQ@mail.gmail.com>

Which DPDK version are you using? In DPDK16.04, below url did some optimization work. 
http://dpdk.org/ml/archives/dev/2015-November/028598.html 


-----Original Message-----
From: users [mailto:users-bounces@dpdk.org] On Behalf Of Chae-yong Chong
Sent: Wednesday, January 04, 2017 7:08 AM
To: users@dpdk.org
Subject: [dpdk-users] Too much time in mmap()

Hi,

Too much time is spent on mmap() in rte_eal_init().
When running DPDK application with 35 1G huge pages, it takes about 12sec in mapping().
Is there any way to reduce this time?

I guess it is okay to have that much time in first initialization. However, if the application is restarted for some reason(for example, unexpected
exit) that long initialization can cause service continuity.


May the Fun with you.

  reply	other threads:[~2017-01-04  1:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-03 23:08 Chae-yong Chong
2017-01-04  1:17 ` Hu, Xuekun [this message]
2017-01-04  9:16 ` Thomas Monjalon
2017-01-04 14:38   ` Chae-yong Chong
2017-01-04 14:43     ` Thomas Monjalon

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=88A92D351643BA4CB23E30315517062662F61FD0@SHSMSX103.ccr.corp.intel.com \
    --to=xuekun.hu@intel.com \
    --cc=cychong@gmail.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).