search for: threads_per_core

...to have 16 CPUs on the first and second nodes and none on the remaining nodes. Given this asymmetry, the calculation of sockets_per_node (which is later used to calculate nr_cpus) is incorrect: pi->sockets_per_node = num_online_cpus() /(num_online_nodes() * pi->cores_per_socket * pi->threads_per_core); The most straightforward solution is to remove sockets_per_node, and instead determine nr_cpus directly from num_online_cpus. This patch has been tested on x86_64 NUMA machines. -- Elizabeth Kon (Beth) IBM Linux Technology Center Open Hypervisor Team email: eak@us.ibm.com ________________...

Once Xen calculates nr_nodes properly, all nr_cpu calculations based on nr_nodes * sockets_per_node * cores_per_socket * threads_per_core are broken. The easy fix is to replace those calculations with a new field, nr_cpus in physinfo which is calculated by num_online_cpus(). This patch does so and attempts to change all users over to nr_cpus field in physinfo. This patch touches arch/ia64/xen/dom0_ops.c, but I''ve not done...

This will allow userspace to reason with the total number of CPUs, not just the current number of online CPUs. -- Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer T: +44 (0)1223 225 900, http://www.citrix.com _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel

...his one server 1: host : server1 release : 2.6.18-238.9.1.el5xen version : #1 SMP Tue Apr 12 18:53:56 EDT 2011 machine : x86_64 nr_cpus : 4 nr_nodes : 1 sockets_per_node : 1 cores_per_socket : 4 threads_per_core : 1 cpu_mhz : 2400 hw_caps : bfebfbff:20100800:00000000:00000940:0000e3bd:00000000:00000001 total_memory : 4095 free_memory : 383 node_to_cpu : node0:0-3 xen_major : 3 xen_minor : 1 xen_extra...

...elf->xc_handle, &info) != 0 ) return PyErr_SetFromErrno(xc_error); @@ -489,16 +502,56 @@ static PyObject *pyxc_physinfo(XcObject if(q>cpu_cap) *(q-1)=0; - return Py_BuildValue("{s:i,s:i,s:i,s:i,s:l,s:l,s:l,s:i,s:s}", - "threads_per_core", info.threads_per_core, - "cores_per_socket", info.cores_per_socket, - "sockets_per_node", info.sockets_per_node, - "nr_nodes", info.nr_nodes, - "total_me...

...ils of two installations: XEN-A: - XEN 3.2.1 kernel 2.6.26-2-xen-amd64 #xm info release : 2.6.26-2-xen-amd64 version : #1 SMP Sun Jun 21 08:09:04 UTC 2009 machine : x86_64 nr_cpus : 4 nr_nodes : 1 cores_per_socket : 2 threads_per_core : 1 cpu_mhz : 1995 hw_caps : bfebfbff:20100800:00000000:00000140:0004e33d:00000000:00000001 total_memory : 24570 free_memory : 918 node_to_cpu : node0:0-3 xen_major : 3 xen_minor : 2 xen_extra...

...ernet. Network-type is briding. not working: host : debnas release : 2.6.32.16-kchris-xen version : #1 SMP Tue Aug 3 08:08:11 CEST 2010 machine : x86_64 nr_cpus : 4 nr_nodes : 1 cores_per_socket : 2 threads_per_core : 2 cpu_mhz : 1666 hw_caps : bfebfbff:20100800:00000000:00000940:0040e31d:00000000:00000001:00000000 virt_caps : total_memory : 4079 free_memory : 581 node_to_cpu : node0:0-3 node_to_memory : node0:581 node_to_...

...;host : tst122 >release : 2.6.16-xen >version : #1 SMP Wed Apr 26 00:58:26 EDT 2006 >machine : i686 >nr_cpus : 1 >nr_nodes : 1 >sockets_per_node : 1 >cores_per_socket : 1 >threads_per_core : 1 >cpu_mhz : 2793 >hw_caps : >bfebfbff:20000000:00000000:00000180:0000e43d:00000000:00000001 >total_memory : 1023 >free_memory : 62 >xen_major : 3 >xen_minor : 0 >xen_extra : -u...

...ach it. xm info for Xen-3.4.2: host : houyi-vm03.dev.sd.al release : 2.6.18.8-xen version : #1 SMP Thu Dec 3 22:46:04 CST 2009 machine : x86_64 nr_cpus : 16 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 cpu_mhz : 2400 hw_caps : bfebfbff:28100800:00000000:00000340:009ce3bd:00000000:00000001:00000000 virt_caps : hvm total_memory : 24567 free_memory : 22240 node_to_cpu : node0:0-15 node_to_memory : nod...

...ach it. xm info for Xen-3.4.2: host : houyi-vm03.dev.sd.al release : 2.6.18.8-xen version : #1 SMP Thu Dec 3 22:46:04 CST 2009 machine : x86_64 nr_cpus : 16 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 cpu_mhz : 2400 hw_caps : bfebfbff:28100800:00000000:00000340:009ce3bd:00000000:00000001:00000000 virt_caps : hvm total_memory : 24567 free_memory : 22240 node_to_cpu : node0:0-15 node_to_memory : nod...

...: susi-0 > release : 3.8.2-ipmi > version : #4 SMP Mon Mar 11 12:54:31 CET 2013 > machine : x86_64 > nr_cpus : 12 > max_cpu_id : 31 > nr_nodes : 2 > cores_per_socket : 6 > threads_per_core : 1 > cpu_mhz : 3325 > hw_caps : > bfebfbff:2c100800:00000000:00003f40:029ee3ff:00000000:00000001:00000000 > virt_caps : hvm > total_memory : 98291 > free_memory : 62390 > sharing_freed_memory : 0 > sha...

...xc_dom0_op(xc_handle, &op); + ret = xc_physinfo(xc_handle, &physinfo); if ( ret != 0 ) { @@ -460,12 +457,12 @@ unsigned int get_num_cpus(void) } xc_interface_close(xc_handle); - opts.cpu_freq = (double)op.u.physinfo.cpu_khz/1000.0; - - return (op.u.physinfo.threads_per_core * - op.u.physinfo.cores_per_socket * - op.u.physinfo.sockets_per_node * - op.u.physinfo.nr_nodes); + opts.cpu_freq = (double)physinfo.cpu_khz/1000.0; + + return (physinfo.threads_per_core * + physinfo.cores_per_socket * + physinfo.sockets...

.... We have been unable to nail down the issue. Any advice? System info: release : 2.6.18-194.3.1.el5xen version : #1 SMP Thu May 13 13:49:53 EDT 2010 machine : x86_64 nr_cpus : 16 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 cpu_mhz : 2261 hw_caps : bfebfbff:28100800:00000000:00000340:009ce3bd:00000000:00000001:00000000 virt_caps : hvm total_memory : 32758 free_memory : 3974 node_to_cpu : node0:0-15 node_to_memory : node0:3974...

...images]# xm info host : <host>.<domain> release : 3.4.54-8.el6.centos.alt.x86_64 version : #1 SMP Tue Jul 23 17:29:30 UTC 2013 machine : x86_64 nr_cpus : 4 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 1 cpu_mhz : 2133 hw_caps : bfebfbff:28100800:00000000:00003b40:009ce3bd:00000000:00000001:00000000 virt_caps : hvm total_memory : 2037 free_memory : 988 free_cpus : 0 xen_major : 4 xen_minor...

...FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m CONFIG_X86_PCC_CPUFREQ=m CONFIG_X86_ACPI_CPUFREQ=m # CONFIG_PM_DEVFREQ is not set and of course: CONFIG_XEN_ACPI_PROCESSOR=m xl info: nr_cpus : 8 max_cpu_id : 15 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 Greetings and thanks for clarification! Tobias

Hi all, I have made some tests to find a good driver for FirePro V8800 on windows 7 64bit HVM. I have been focused on ''advanced features'': quad buffer and active stereoscopy, synchronization ... The results, for all FirePro drivers (of this year); I can''t get the quad buffer/active stereoscopy feature. But they work on a native installation. The only driver that allows

...h0'' ] root@vhost2:/var/log/xen# xm info host : vhost2 release : 2.6.32-5-xen-amd64 version : #1 SMP Tue Jun 1 06:38:33 UTC 2010 machine : x86_64 nr_cpus : 2 nr_nodes : 1 cores_per_socket : 1 threads_per_core : 2 cpu_mhz : 2800 hw_caps : bfebfbff:20000800:00000000:00000180:0000641d:00000000:00000000:00000000 virt_caps : total_memory : 6143 free_memory : 2054 node_to_cpu : node0:0-1 node_to_memory : node0:2054 node_...

...mands are: *root@boss[daemon]#xl info -n* host : boss release : 3.2.0-4-amd64 version : #1 SMP Debian 3.2.41-2 machine : x86_64 nr_cpus : 8 max_cpu_id : 7 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 cpu_mhz : 3392 hw_caps : bfebfbff:28100800:00000000:00007f40:77bae3ff:00000000:00000001:00000281 virt_caps : hvm total_memory : 3970 free_memory : 442 sharing_freed_memory : 0 sharing_used_memory : 0 free_cpus...