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From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: David Marchand <david.marchand@redhat.com>, <dev@dpdk.org>
Cc: thomas@monjalon.net, frode.nordahl@canonical.com,
	mattias.ronnblom@ericsson.com,
	"David Hunt" <david.hunt@intel.com>,
	"Sivaprasad Tummala" <sivaprasad.tummala@amd.com>,
	"Chengwen Feng" <fengchengwen@huawei.com>,
	"Stephen Hemminger" <stephen@networkplumber.org>,
	"Konstantin Ananyev" <konstantin.ananyev@huawei.com>,
	"Morten Brørup" <mb@smartsharesystems.com>
Subject: Re: [PATCH v2 4/5] power: reduce memory footprint of per-lcore state
Date: Wed, 18 Dec 2024 12:17:12 +0100	[thread overview]
Message-ID: <69c01586-01cf-423a-9565-dee2b41951cd@intel.com> (raw)
In-Reply-To: <20241217085954.3310414-5-david.marchand@redhat.com>

On 12/17/2024 9:59 AM, David Marchand wrote:
> Now that the per-lcore state was moved into a lcore variable,
> there is no reason to align a per-lcore state on a cache line to avoid
> false sharing.
> Remove this alignment and save a few bytes.
> 
> Fixes: 130643319579 ("power: keep per-lcore state in lcore variable")
> 
> Signed-off-by: David Marchand <david.marchand@redhat.com>
> ---
>   lib/power/rte_power_pmd_mgmt.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/power/rte_power_pmd_mgmt.c b/lib/power/rte_power_pmd_mgmt.c
> index 369ce3c354..8ec925bd65 100644
> --- a/lib/power/rte_power_pmd_mgmt.c
> +++ b/lib/power/rte_power_pmd_mgmt.c
> @@ -56,7 +56,7 @@ struct queue_list_entry {
>   	const struct rte_eth_rxtx_callback *cb;
>   };
>   
> -struct __rte_cache_aligned pmd_core_cfg {
> +struct pmd_core_cfg {
>   	TAILQ_HEAD(queue_list_head, queue_list_entry) head;
>   	/**< List of queues associated with this lcore */
>   	size_t n_queues;
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

-- 
Thanks,
Anatoly

  reply	other threads:[~2024-12-18 11:18 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-05 17:57 [PATCH 0/3] Defer lcore variables allocation David Marchand
2024-12-05 17:57 ` [PATCH 1/3] random: defer seeding to EAL init David Marchand
2024-12-06 11:09   ` Mattias Rönnblom
2024-12-16  9:38   ` Burakov, Anatoly
2024-12-05 17:57 ` [PATCH 2/3] power: defer lcore variable allocation David Marchand
2024-12-06 11:29   ` Mattias Rönnblom
2024-12-12  7:57     ` David Marchand
2024-12-13  6:58       ` Mattias Rönnblom
2024-12-16 10:02         ` David Marchand
2024-12-05 17:57 ` [PATCH 3/3] eal/x86: defer power intrinsics " David Marchand
2024-12-06 11:32   ` Mattias Rönnblom
2024-12-06 11:01 ` [PATCH 0/3] Defer lcore variables allocation Mattias Rönnblom
2024-12-06 15:55   ` Thomas Monjalon
2024-12-10 17:09     ` Stephen Hemminger
2024-12-09 11:03   ` David Marchand
2024-12-09 15:39     ` Mattias Rönnblom
2024-12-09 17:40       ` David Marchand
2024-12-10  9:41         ` Mattias Rönnblom
2024-12-16 10:01           ` Burakov, Anatoly
2024-12-16  9:42 ` Burakov, Anatoly
2024-12-16  9:49   ` David Marchand
2024-12-17  9:06     ` David Marchand
2024-12-18 20:10     ` Mattias Rönnblom
2024-12-17  8:59 ` [PATCH v2 0/5] " David Marchand
2024-12-17  8:59   ` [PATCH v2 1/5] eal: check lcore variable handle David Marchand
2024-12-18 11:18     ` Burakov, Anatoly
2024-12-17  8:59   ` [PATCH v2 2/5] random: defer seeding to EAL init David Marchand
2024-12-18 16:35     ` Stephen Hemminger
2024-12-18 17:03       ` Mattias Rönnblom
2024-12-17  8:59   ` [PATCH v2 3/5] power: defer lcore variable allocation David Marchand
2024-12-18 11:17     ` Burakov, Anatoly
2024-12-17  8:59   ` [PATCH v2 4/5] power: reduce memory footprint of per-lcore state David Marchand
2024-12-18 11:17     ` Burakov, Anatoly [this message]
2024-12-17  8:59   ` [PATCH v2 5/5] eal/x86: defer power intrinsics variable allocation David Marchand
2024-12-18 11:17     ` Burakov, Anatoly

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