linux-kernel - Re: [PATCH] x86: new topology for multi-NUMA-node CPUs

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: <541B5553.8070206@sr71.net>
Date:	Thu, 18 Sep 2014 14:57:39 -0700
From:	Dave Hansen <dave@...1.net>
To:	linux-kernel@...r.kernel.org
CC:	dave.hansen@...ux.intel.com, a.p.zijlstra@...llo.nl,
	mingo@...nel.org, hpa@...ux.intel.com, brice.goglin@...il.com,
	bp@...en8.de
Subject: Re: [PATCH] x86: new topology for multi-NUMA-node CPUs

On 09/18/2014 12:33 PM, Dave Hansen wrote:
> @@ -410,6 +442,8 @@ void set_cpu_sibling_map(int cpu)
>  			} else if (i != cpu && !c->booted_cores)
>  				c->booted_cores = cpu_data(i).booted_cores;
>  		}
> +		if (match_mc(c, o) == !topology_same_node(c, o))
> +			primarily_use_numa_for_topology();
>  	}
>  }

I went to test this on some more systems.  The "== !" above should be a
"!=".  The test is meant to see if a CPU pair is in the same mc group,
but not in the same node.

I'll fix it in the next version.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/