From: "Kinsella, Ray" <ray.kinsella@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>,
Syam Prasad N Pearson <syam.pearson@gadgeon.com>
Cc: "users@dpdk.org" <users@dpdk.org>, "dev@dpdk.org" <dev@dpdk.org>,
"Wang, Yipeng1" <yipeng1.wang@intel.com>,
"Gobriel, Sameh" <sameh.gobriel@intel.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
"Medvedkin, Vladimir" <vladimir.medvedkin@intel.com>
Subject: Re: [dpdk-dev] Doubt regarding DPDK hash Library implementation
Date: Thu, 4 Nov 2021 14:46:53 +0000 [thread overview]
Message-ID: <PH0PR11MB47769F949D7FD3273A0ABB48908D9@PH0PR11MB4776.namprd11.prod.outlook.com> (raw)
In-Reply-To: <35568061.LRaTyjEjOM@thomas>
I would guess it - I would say it is related to cache alignment.
Assuming each entry is 8 bytes 😊
Ray K
> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Thursday 4 November 2021 14:12
> To: Syam Prasad N Pearson <syam.pearson@gadgeon.com>
> Cc: users@dpdk.org; dev@dpdk.org; Wang, Yipeng1
> <yipeng1.wang@intel.com>; Gobriel, Sameh <sameh.gobriel@intel.com>;
> Richardson, Bruce <bruce.richardson@intel.com>; Medvedkin, Vladimir
> <vladimir.medvedkin@intel.com>
> Subject: Re: [dpdk-dev] Doubt regarding DPDK hash Library
> implementation
>
> +Cc hash lib maintainers
>
> 01/11/2021 11:55, Syam Prasad N Pearson:
> > Dear Sir/Madam,
> > I am a developer trying to get familiar with the DPDK hash library.
> I
> > tried to make and use a hash table successfully.
> > During the development I came across a variable
> >
> > /** Number of items per bucket. */
> > *#define RTE_HASH_BUCKET_ENTRIES 8*
> >
> > defined inside:
> > dpdk-20.11.3/dpdk-stable-20.11.3/lib/librte_hash /rte_cuckoo_hash.h
> >
> > Why does the library take this value as *8*, is there any particular
> > reason for this? what if it is 16,32... etc.
> >
> > I am using DPDK 20.11.3 LTS.
> >
> > Please help.
>
>
next prev parent reply other threads:[~2021-11-04 14:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-01 10:55 Syam Prasad N Pearson
2021-11-04 14:11 ` Thomas Monjalon
2021-11-04 14:46 ` Kinsella, Ray [this message]
2021-11-04 16:39 ` Medvedkin, Vladimir
2021-11-04 16:49 ` Thomas Monjalon
2021-11-06 23:23 ` Syam Prasad N Pearson
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=PH0PR11MB47769F949D7FD3273A0ABB48908D9@PH0PR11MB4776.namprd11.prod.outlook.com \
--to=ray.kinsella@intel.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=sameh.gobriel@intel.com \
--cc=syam.pearson@gadgeon.com \
--cc=thomas@monjalon.net \
--cc=users@dpdk.org \
--cc=vladimir.medvedkin@intel.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).