From: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
To: "gavin.hu@arm.com" <gavin.hu@arm.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "david.marchand@redhat.com" <david.marchand@redhat.com>,
"chaozhu@linux.vnet.ibm.com" <chaozhu@linux.vnet.ibm.com>,
"nd@arm.com" <nd@arm.com>,
"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
"stephen@networkplumber.org" <stephen@networkplumber.org>,
"Honnappa.Nagarahalli@arm.com" <Honnappa.Nagarahalli@arm.com>
Subject: Re: [dpdk-dev] [EXT] [PATCH v3 2/6] test/spinlock: remove 1us delay for correct benchmarking
Date: Thu, 27 Dec 2018 07:20:00 +0000 [thread overview]
Message-ID: <bb8efae98e52609d34ab943fbaad594124728cba.camel@marvell.com> (raw)
In-Reply-To: <20181227041349.3058-3-gavin.hu@arm.com>
On Thu, 2018-12-27 at 12:13 +0800, Gavin Hu wrote:
> -------------------------------------------------------------------
> ---
> The test is to benchmark the performance of spinlock by counting the
> number of spinlock acquire and release operations within the
> specified
> time.
> A typical pair of lock and unlock operations costs tens or hundreds
> of
> nano seconds, in comparison to this, delaying 1 us outside of the
> locked
> region is too much, compromising the goal of benchmarking the lock
> and
> unlock performance.
>
> Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> Reviewed-by: Ruifeng Wang <Ruifeng.Wang@arm.com>
> Reviewed-by: Joyce Kong <Joyce.Kong@arm.com>
> Reviewed-by: Phil Yang <phil.yang@arm.com>
> Reviewed-by: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
> Reviewed-by: Ola Liljedahl <Ola.Liljedahl@arm.com>
> ---
Acked-by: Jerin Jacob <jerinj@marvell.com>
next prev parent reply other threads:[~2018-12-27 7:20 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-27 4:13 [dpdk-dev] [PATCH v3 0/6] spinlock optimization and test case enhancements Gavin Hu
2018-12-27 4:13 ` [dpdk-dev] [PATCH v3 1/6] eal: fix clang compilation error on x86 Gavin Hu
2018-12-27 6:36 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2018-12-27 4:13 ` [dpdk-dev] [PATCH v3 2/6] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2018-12-27 7:20 ` Jerin Jacob Kollanukkaran [this message]
2018-12-27 4:13 ` [dpdk-dev] [PATCH v3 3/6] test/spinlock: get timestamp more precisely Gavin Hu
2018-12-27 7:27 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-01-03 18:22 ` Honnappa Nagarahalli
2018-12-27 4:13 ` [dpdk-dev] [PATCH v3 4/6] test/spinlock: amortize the cost of getting time Gavin Hu
2018-12-27 4:13 ` [dpdk-dev] [PATCH v3 5/6] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2018-12-27 7:42 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2018-12-27 9:02 ` Gavin Hu (Arm Technology China)
2019-01-03 20:35 ` Honnappa Nagarahalli
2019-01-11 13:52 ` Gavin Hu (Arm Technology China)
2019-01-14 5:54 ` Honnappa Nagarahalli
2019-01-14 7:39 ` Jerin Jacob Kollanukkaran
2019-01-14 17:08 ` Gavin Hu (Arm Technology China)
2019-01-14 7:57 ` Gavin Hu (Arm Technology China)
2018-12-27 4:13 ` [dpdk-dev] [PATCH v3 6/6] spinlock: ticket based to improve fairness Gavin Hu
2018-12-27 6:58 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2018-12-27 10:05 ` Gavin Hu (Arm Technology China)
2018-12-27 12:08 ` Jerin Jacob Kollanukkaran
2018-12-27 23:41 ` Stephen Hemminger
2018-12-28 4:39 ` Jerin Jacob Kollanukkaran
2018-12-28 10:04 ` Gavin Hu (Arm Technology China)
2019-01-03 18:35 ` Honnappa Nagarahalli
2019-01-03 19:53 ` Stephen Hemminger
2019-01-04 7:06 ` Honnappa Nagarahalli
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