From: Bruce Richardson <bruce.richardson@intel.com>
To: Yipeng Wang <yipeng1.wang@intel.com>
Cc: dev@dpdk.org, honnappa.nagarahalli@arm.com
Subject: Re: [dpdk-dev] [PATCH v8 2/4] hash: add extendable bucket feature
Date: Tue, 23 Oct 2018 09:55:35 +0100 [thread overview]
Message-ID: <20181023085534.GB22220@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <1540233588-202969-3-git-send-email-yipeng1.wang@intel.com>
On Mon, Oct 22, 2018 at 11:39:46AM -0700, Yipeng Wang wrote:
> In use cases that hash table capacity needs to be guaranteed,
> the extendable bucket feature can be used to contain extra
> keys in linked lists when conflict happens. This is similar
> concept to the extendable bucket hash table in packet
> framework.
>
> This commit adds the extendable bucket feature. User can turn
> it on or off through the extra flag field during table
> creation time.
>
> Extendable bucket table composes of buckets that can be
> linked list to current main table. When extendable bucket
> is enabled, the hash table load can always achieve 100%.
> In other words, the table can always accommodate the same
> number of keys as the specified table size. This provides
> 100% table capacity guarantee.
>
> Although keys ending up in the ext buckets may have longer
> look up time, they should be rare due to the cuckoo
> algorithm.
>
> Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com>
> Acked-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
> ---
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
next prev parent reply other threads:[~2018-10-23 8:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-22 18:39 [dpdk-dev] [PATCH v8 0/4] hash: add extendable bucket and partial key hashing Yipeng Wang
2018-10-22 18:39 ` [dpdk-dev] [PATCH v8 1/4] hash: fix race condition in iterate Yipeng Wang
2018-10-23 8:53 ` Bruce Richardson
2018-10-22 18:39 ` [dpdk-dev] [PATCH v8 2/4] hash: add extendable bucket feature Yipeng Wang
2018-10-23 8:55 ` Bruce Richardson [this message]
2018-10-22 18:39 ` [dpdk-dev] [PATCH v8 3/4] test/hash: implement extendable bucket hash test Yipeng Wang
2018-10-23 9:04 ` Bruce Richardson
2018-10-22 18:39 ` [dpdk-dev] [PATCH v8 4/4] hash: use partial-key hashing Yipeng Wang
2018-10-23 9:07 ` Bruce Richardson
2018-10-25 22:35 ` [dpdk-dev] [PATCH v8 0/4] hash: add extendable bucket and partial key hashing 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=20181023085534.GB22220@bricha3-MOBL.ger.corp.intel.com \
--to=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=honnappa.nagarahalli@arm.com \
--cc=yipeng1.wang@intel.com \
/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).