lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <09038324-65ed-8529-2f6c-671a15a8fb84@gmail.com>
Date:   Sun, 24 Jul 2022 15:09:11 +0300
From:   Tariq Toukan <ttoukan.linux@...il.com>
To:     Tariq Toukan <tariqt@...dia.com>,
        "David S. Miller" <davem@...emloft.net>,
        Saeed Mahameed <saeedm@...dia.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        Gal Pressman <gal@...dia.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next V3 0/3] Introduce and use NUMA distance metrics



On 7/19/2022 7:23 PM, Tariq Toukan wrote:
> Hi,
> 
> Implement and expose CPU spread API based on the scheduler's
> sched_numa_find_closest().  Use it in mlx5 and enic device drivers.  This
> replaces the binary NUMA preference (local / remote) with an improved one
> that minds the actual distances, so that remote NUMAs with short distance
> are preferred over farther ones.
> 
> This has significant performance implications when using NUMA-aware
> memory allocations, improving the throughput and CPU utilization.
> 
> Regards,
> Tariq
> 
> v3:
> - Introduce the logic as a common API instead of being mlx5 specific.
> - Add implementation to enic device driver.
> - Use non-atomic version of __cpumask_clear_cpu.
> 

Comments on V2 were addressed.
Please let me now of any other comments on this V3.

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ