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xen-devel
Re: [Xen-devel] [PATCH] Add CPU topology info (thread/core/socket) in xe
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To: |
"Yu, Ke" <ke.yu@xxxxxxxxx> |
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Subject: |
Re: [Xen-devel] [PATCH] Add CPU topology info (thread/core/socket) in xenpm |
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From: |
Akio Takebe <takebe_akio@xxxxxxxxxxxxxx> |
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Date: |
Fri, 13 Mar 2009 18:46:26 +0900 |
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Cc: |
"Liu, Jinsong" <jinsong.liu@xxxxxxxxx>, "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx> |
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Fri, 13 Mar 2009 02:46:53 -0700 |
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Thunderbird 2.0.0.19 (X11/20090105) |
Hi, Yu
Good patch! We wanted this feature.
> Add CPU topology info (thread/core/socket) in xenpm
Can this patch show thread?
> +#define MAX_NR_CPU 512
> +
> +void cpu_topology_func(int argc, char *argv[])
> +{
> + uint32_t cpu_to_core[MAX_NR_CPU];
> + uint32_t cpu_to_socket[MAX_NR_CPU];
> + struct xc_get_cputopo info;
> + int i, ret;
> +
> + info.cpu_to_core = cpu_to_core;
> + info.cpu_to_socket = cpu_to_socket;
> + info.max_cpus = MAX_NR_CPU;
> + ret = xc_get_cputopo(xc_fd, &info);
> + if (!ret)
> + {
> + printf("CPU\tcore\tsocket\n");
> + for (i=0; i<info.nr_cpus; i++)
> + {
> + if ( info.cpu_to_core[i] != INVALID_TOPOLOGY_ID &&
> + info.cpu_to_socket[i] != INVALID_TOPOLOGY_ID )
> + {
> + printf("CPU%d\t %d\t %d\n", i, info.cpu_to_core[i],
> + info.cpu_to_socket[i]);
> + }
> + }
> + }
> + else
> + {
> + printf("Can not get Xen CPU topology!\n");
> + }
> +
> + return ;
> +}
The function looks like only show core/socket.
Best Regards,
Akio Takebe
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