Message ID | 20240227174203.2889333-1-yoan.picchi@arm.com (mailing list archive) |
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Headers |
Return-Path: <dev-bounces@dpdk.org> X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6DB4543C0D; Tue, 27 Feb 2024 18:42:25 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id EF18242ECB; Tue, 27 Feb 2024 18:42:19 +0100 (CET) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id 837BE4069D for <dev@dpdk.org>; Tue, 27 Feb 2024 18:42:17 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 975DB1476; Tue, 27 Feb 2024 09:42:53 -0800 (PST) Received: from octeon10-1.usa.Arm.com (unknown [10.118.91.161]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 95C313F7F4; Tue, 27 Feb 2024 09:42:14 -0800 (PST) From: Yoan Picchi <yoan.picchi@arm.com> To: Cc: dev@dpdk.org, nd@arm.com, Yoan Picchi <yoan.picchi@foss.arm.com> Subject: [PATCH v5 0/4] hash: add SVE support for bulk key lookup Date: Tue, 27 Feb 2024 17:41:59 +0000 Message-Id: <20240227174203.2889333-1-yoan.picchi@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231020165159.1649282-1-yoan.picchi@arm.com> References: <20231020165159.1649282-1-yoan.picchi@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org |
Series |
hash: add SVE support for bulk key lookup
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Message
Yoan Picchi
Feb. 27, 2024, 5:41 p.m. UTC
From: Yoan Picchi <yoan.picchi@foss.arm.com>
This patchset adds SVE support for the signature comparison in the cuckoo
hash lookup and improves the existing NEON implementation. These
optimizations required changes to the data format and signature of the
relevant functions to support dense hitmasks (no padding) and having the
primary and secondary hitmasks interleaved instead of being in their own
array each.
Benchmarking the cuckoo hash perf test, I observed this effect on speed:
There are no significant changes on Intel (ran on Sapphire Rapids)
Neon is up to 7-10% faster (ran on ampere altra)
128b SVE is about 3-5% slower than the optimized neon (ran on a graviton
3 cloud instance)
256b SVE is about 0-3% slower than the optimized neon (ran on a graviton
3 cloud instance)
V2->V3:
Remove a redundant if in the test
Change a couple int to uint16_t in compare_signatures_dense
Several codding-style fix
V3->V4:
Rebase
V4->V5:
Commit message
Yoan Picchi (4):
hash: pack the hitmask for hash in bulk lookup
hash: optimize compare signature for NEON
test/hash: check bulk lookup of keys after collision
hash: add SVE support for bulk key lookup
.mailmap | 2 +
app/test/test_hash.c | 99 ++++++++++----
lib/hash/rte_cuckoo_hash.c | 264 +++++++++++++++++++++++++++++--------
lib/hash/rte_cuckoo_hash.h | 1 +
4 files changed, 287 insertions(+), 79 deletions(-)