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 4/4] hash: use partial-key hashing
Date: Tue, 23 Oct 2018 10:07:00 +0100 [thread overview]
Message-ID: <20181023090700.GD22220@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <1540233588-202969-5-git-send-email-yipeng1.wang@intel.com>
On Mon, Oct 22, 2018 at 11:39:48AM -0700, Yipeng Wang wrote:
> This commit changes the hashing mechanism to "partial-key
> hashing" to calculate bucket index and signature of key.
>
> This is proposed in Bin Fan, et al's paper
> "MemC3: Compact and Concurrent MemCache with Dumber Caching
> and Smarter Hashing". Basically the idea is to use "xor" to
> derive alternative bucket from current bucket index and
> signature.
>
> With "partial-key hashing", it reduces the bucket memory
> requirement from two cache lines to one cache line, which
> improves the memory efficiency and thus the lookup speed.
>
> Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com>
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.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 9:07 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
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 [this message]
2018-10-25 22:35 ` [dpdk-dev] [PATCH v8 0/4] hash: add extendable bucket and partial key hashing Thomas Monjalon
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