From: Jerin Jacob <jerinjacobk@gmail.com>
To: Ashwin Sekhar T K <asekhar@marvell.com>
Cc: dev@dpdk.org, Nithin Dabilpuram <ndabilpuram@marvell.com>,
Kiran Kumar K <kirankumark@marvell.com>,
Sunil Kumar Kori <skori@marvell.com>,
Satha Rao <skoteshwar@marvell.com>,
Pavan Nikhilesh <pbhagavatula@marvell.com>,
jerinj@marvell.com, psatheesh@marvell.com, anoobj@marvell.com,
gakhil@marvell.com, hkalra@marvell.com
Subject: Re: [PATCH 1/3] mempool/cnxk: limit usage of async allocs
Date: Thu, 24 Aug 2023 10:27:24 +0530 [thread overview]
Message-ID: <CALBAE1MBdgqKPwGueSHsARp73Lf58tu58oe6CNEP0Z6WxLcG0w@mail.gmail.com> (raw)
In-Reply-To: <20230822170157.2637286-1-asekhar@marvell.com>
On Tue, Aug 22, 2023 at 10:40 PM Ashwin Sekhar T K <asekhar@marvell.com> wrote:
>
> Currently mempool_cnxk driver uses asynchronous allocation
> for all pools. This asynchronous allocation can result in
> local caching of additional 512 objects on a single core
> even when cache is disabled. This will eventually lead to
> starvation on pools where the number of objects is very less.
>
> This commit changes this logic to use asynchronous allocation on
> only those pools which have local cache enabled. Also the async buffer
> size will be RTE_ALIGN_CEIL(rte_mempool->cache_size, 16). This
> means that when cache is disabled, async alloc will be completely
> disabled and when cache is enabled, the additional caching due
> to asynchronous allocation will be limited.
>
> A limitation has been added to cnxk documentation warning the users
> to adjust the local cache sizes accordingly.
>
> Signed-off-by: Ashwin Sekhar T K <asekhar@marvell.com>
Series applied to dpdk-next-net-mrvl/for-next-net. Thanks
prev parent reply other threads:[~2023-08-24 4:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-31 5:55 [PATCH 1/2] " Ashwin Sekhar T K
2023-07-31 5:55 ` [PATCH 2/2] mempool/cnxk: fix alloc from non-EAL pthreads Ashwin Sekhar T K
2023-08-18 9:21 ` Jerin Jacob
2023-08-22 17:01 ` [PATCH 1/3] mempool/cnxk: limit usage of async allocs Ashwin Sekhar T K
2023-08-22 17:01 ` [PATCH 2/3] mempool/cnxk: fix free from non-EAL pthreads Ashwin Sekhar T K
2023-08-22 17:01 ` [PATCH 3/3] mempool/cnxk: fix alloc " Ashwin Sekhar T K
2023-08-24 4:57 ` Jerin Jacob [this message]
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