DPDK patches and discussions
 help / color / mirror / Atom feed
From: Zhihong Wang <zhihong.wang@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH RFC v2 0/2] Reduce DPDK initialization time
Date: Thu, 19 Nov 2015 20:53:46 -0500	[thread overview]
Message-ID: <1447984428-137897-1-git-send-email-zhihong.wang@intel.com> (raw)

This RFC patch aims to reduce DPDK initialization time, which is important in cases such as micro service.

Changes are:

1. Reduce timer initialization time

2. Remove unnecessary hugepage zero-filling operations

With this patch:

1. Timer initialization time can be reduced by 4/10 second

2. Memory initialization time can be reduced nearly by half

The 2nd topic has been brought up before in this thread:
http://dpdk.org/dev/patchwork/patch/4219/

--------------
Changes in v2:

1. Use MAP_POPULATE flag to populate page tables

2. Add comments to avoid future misunderstanding

Zhihong Wang (2):
  lib/librte_eal: Reduce timer initialization time
  lib/librte_eal: Remove unnecessary hugepage zero-filling

 lib/librte_eal/linuxapp/eal/eal_memory.c | 20 ++++++--------------
 lib/librte_eal/linuxapp/eal/eal_timer.c  |  2 +-
 2 files changed, 7 insertions(+), 15 deletions(-)

-- 
2.5.0

             reply	other threads:[~2015-11-20  8:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-20  1:53 Zhihong Wang [this message]
2015-11-20  1:53 ` [dpdk-dev] [PATCH RFC v2 1/2] lib/librte_eal: Reduce timer " Zhihong Wang
2015-11-20 16:31   ` Stephen Hemminger
2015-11-23  1:29     ` Wang, Zhihong
2015-11-20  1:53 ` [dpdk-dev] [PATCH RFC v2 2/2] lib/librte_eal: Remove unnecessary hugepage zero-filling Zhihong Wang
2015-11-20 16:32   ` Stephen Hemminger
2015-11-23  1:31     ` Wang, Zhihong

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=1447984428-137897-1-git-send-email-zhihong.wang@intel.com \
    --to=zhihong.wang@intel.com \
    --cc=dev@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).