[CentOS] question on CPU
I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual core, however, there is only 1 processor listed in /proc/cpuinfo. Is the OS only using a single core? jerry -- processor : 0 vendor_id : AuthenticAMD cpu family : 17 model : 3 model name : AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 stepping: 1 cpu MHz : 2400.000 cache size : 1024 KB physical id : 0 siblings: 1 core id : 0 cpu cores : 1 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
On 05/27/2010 03:47 PM, Jerry Geis wrote: > I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual > core, > however, there is only 1 processor listed in /proc/cpuinfo. > > Is the OS only using a single core? Check the BIOS, I have seen HP desktops that have option in BIOS to turn off multicore support. Then only single core is exposed to the OS. -- Veiko ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
How many processors are shown in your process monitor/activity monitor? -- Regards, James. http://www.jamesbensley.co.cc/ - There are only 10 kinds of people in the world, those who understand trinary, those who don't understand trinary and those who don't understand trinary. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
On 5/27/2010 9:25 AM, James Bensley wrote: > How many processors are shown in your process monitor/activity monitor? > > In order to view the number of cpu's in top, press the '1' key. You will then see cpu0, cpu1, cpu2, etc. if there is more than 1 core detected. Ryan Manikowski ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
> > On 05/27/2010 03:47 PM, Jerry Geis wrote: > >/ I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual > />/ core, > />/ however, there is only 1 processor listed in /proc/cpuinfo. > />/ > />/ Is the OS only using a single core? > / > Check the BIOS, I have seen HP desktops that have option in BIOS to turn > off multicore support. Then only single core is exposed to the OS. > > Looked in the BIOS and there was no setting. Top is only showing 1 CPU. Jerry ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
On Thu, May 27, 2010 at 10:38 AM, Jerry Geis wrote: >> > Looked in the BIOS and there was no setting. > > Top is only showing 1 CPU. > What kernel are you running? 'uname -a' output? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
lists-centos wrote: > Original Message > >> Date: Thursday, May 27, 2010 10:38:34 AM -0400 >> From: Jerry Geis >> >>> On 05/27/2010 03:47 PM, Jerry Geis wrote: >>> / I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual >>> />/ core, >>> />/ however, there is only 1 processor listed in /proc/cpuinfo. >>> />/ >>> />/ Is the OS only using a single core? >>> / >>> Check the BIOS, I have seen HP desktops that have option in BIOS >>> to turn off multicore support. Then only single core is exposed >>> to the OS. >>> >>> >>> >> Looked in the BIOS and there was no setting. >> >> Top is only showing 1 CPU. >> > > look in /var/log/dmesg, that will show what was found during the > boot process (and perhaps provide other insights). > > - Richard > > > > powernow-k8: Found 1 AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 processors (1 cpu cores) (version 2.20.00) powernow-k8:0 : fid 0x0 gid 0x0 (2400 MHz) powernow-k8:1 : fid 0x0 gid 0x0 (1200 MHz) powernow-k8:2 : fid 0x0 gid 0x0 (600 MHz) Did they give me a "bad" processor. jerry ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
Jerry Geis wrote: > lists-centos wrote: >> Original Message >> >>> Date: Thursday, May 27, 2010 10:38:34 AM -0400 >>> From: Jerry Geis >>> On 05/27/2010 03:47 PM, Jerry Geis wrote: > / I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo > shows Dual > />/ core, />/ however, there is only 1 processor listed in /proc/cpuinfo. />/ />/ Is the OS only using a single core? / Check the BIOS, I have seen HP desktops that have option in BIOS to turn off multicore support. Then only single core is exposed to the OS. >>> Looked in the BIOS and there was no setting. >>> >>> Top is only showing 1 CPU. >>> >> >> look in /var/log/dmesg, that will show what was found during the >> boot process (and perhaps provide other insights). >> >> - Richard >> >> >> >> > powernow-k8: Found 1 AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 > processors (1 cpu cores) (version 2.20.00) > powernow-k8:0 : fid 0x0 gid 0x0 (2400 MHz) > powernow-k8:1 : fid 0x0 gid 0x0 (1200 MHz) > powernow-k8:2 : fid 0x0 gid 0x0 (600 MHz) > > > > Did they give me a "bad" processor. > > jerry > I am now running stock centos 5.5 x86_64. jerry ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
On 05/27/2010 01:47 PM, Jerry Geis wrote: > I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual > core, > however, there is only 1 processor listed in /proc/cpuinfo. > > Is the OS only using a single core? > > jerry > What's the status of ACPI? Is it enabled in the bios? Is the acpi service installed and running? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
> From: Ned Slider > Sent: Thursday, May 27, 2010 11:16 > Subject: Re: [CentOS] question on CPU > > On 05/27/2010 01:47 PM, Jerry Geis wrote: > > I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows > > Dual core, however, there is only 1 processor listed in /proc/cpuinfo. > > > > Is the OS only using a single core? > > > > jerry > > > > What's the status of ACPI? > Still have not seen the uname -a output... > Is it enabled in the bios? Is the acpi service installed and running? > -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100- - +1 (443) 269-1555 x333Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
>> > I am now running stock centos 5.5 x86_64. > > jerry > Sorry 2.6.18-194.3.1.el5 #1 SMP Thu May 13 13:08:30 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux Jerry ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] question on CPU
> > What's the status of ACPI? > > Is it enabled in the bios? Is the acpi service installed and running? > I see nothing in the bios for ACPI which is odd. in /proc/acpi/processor there is a CPU0 and CPU1 the info file shows process id: 0 and 1 in each file. So it looks like its there but /proc/cpuinfo still only shows 1 entry. Just not sure the OS is really using two cores. It seems like its not. jerry ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
