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
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
> > 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
lists-centos wrote:> ------------ Original Message ------------ > >> Date: Thursday, May 27, 2010 10:38:34 AM -0400 >> From: Jerry Geis <geisj at pagestation.com> >> >>> 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
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?