[gentoo-user] AMD Phenom X6 + Linux + "Turbo Core" ???
Hi, I googled this and found some other people asking the same question... But I didn't find the answer. I am using linux kernel 2.6.36.1 vanilla to run on a AMD Phenom X6 1090T/ASUS Crosshair IV Formula system. I enabled "ondemand" CPU frequency scaling givernor in the kernel and "Cool'n' Quiet" in the bios of the board. I also enabled "Turbo Core" in the bios (which says the 3200MHz is max and 3600 MHz in case of Turbo Core being used.. I disabled C1E. After Linux is booted (AMD64!) and idled, the CPU is running at 800Mhz (nice!) and at 3200 MHz when system is under load. But: With prime I put exactly two cores under load, so normally Turbo Core would kick in...but the clock of those both cores show 3200MHz instead of 3600MHz How can I make use of the Turbo-Core feature unde Linux? Thank you very much in advance for any help! Have a nice weekend! Best regards, mcc
Re: [gentoo-user] AMD Phenom X6 + Linux + "Turbo Core" ???
On Friday 03 December 2010, meino.cra...@gmx.de wrote: > Hi, > > I googled this and found some other people asking the same question... > But I didn't find the answer. > > I am using linux kernel 2.6.36.1 vanilla to run on a AMD Phenom X6 > 1090T/ASUS Crosshair IV Formula system. > > I enabled "ondemand" CPU frequency scaling givernor in the kernel and > "Cool'n' Quiet" in the bios of the board. I also enabled "Turbo Core" > in the bios (which says the 3200MHz is max and 3600 MHz in case of > Turbo Core being used.. I disabled C1E. > > After Linux is booted (AMD64!) and idled, the CPU is running at 800Mhz > (nice!) and at 3200 MHz when system is under load. > > But: > With prime I put exactly two cores under load, so normally Turbo Core > would kick in...but the clock of those both cores show 3200MHz instead > of 3600MHz > > How can I make use of the Turbo-Core feature unde Linux? and you looked at the speed using cat /proc/cpuinfo? Because the mhz displayed there are misleading. cpuinfo does not show at which speeds it is acutally running if there is any oc/uc involved. An overclocked cpu might show 2Ghz while it is running at 2.3GHz See: http://www.phoronix.com/forums/showthread.php?t=26065
Re: [gentoo-user] AMD Phenom X6 + Linux + "Turbo Core" ???
Volker Armin Hemmann [10-12-04 01:24]: > On Friday 03 December 2010, meino.cra...@gmx.de wrote: > > Hi, > > > > I googled this and found some other people asking the same question... > > But I didn't find the answer. > > > > I am using linux kernel 2.6.36.1 vanilla to run on a AMD Phenom X6 > > 1090T/ASUS Crosshair IV Formula system. > > > > I enabled "ondemand" CPU frequency scaling givernor in the kernel and > > "Cool'n' Quiet" in the bios of the board. I also enabled "Turbo Core" > > in the bios (which says the 3200MHz is max and 3600 MHz in case of > > Turbo Core being used.. I disabled C1E. > > > > After Linux is booted (AMD64!) and idled, the CPU is running at 800Mhz > > (nice!) and at 3200 MHz when system is under load. > > > > But: > > With prime I put exactly two cores under load, so normally Turbo Core > > would kick in...but the clock of those both cores show 3200MHz instead > > of 3600MHz > > > > How can I make use of the Turbo-Core feature unde Linux? > > and you looked at the speed using cat /proc/cpuinfo? > > Because the mhz displayed there are misleading. cpuinfo does not show at > which > speeds it is acutally running if there is any oc/uc involved. An overclocked > cpu might show 2Ghz while it is running at 2.3GHz > > See: > http://www.phoronix.com/forums/showthread.php?t=26065 > No, I didn't. I looked at: /sys/devices/system/cpu/cpu[0-5]/cpufreq/cpuinfo_max_freq and it is saying 320 .
Re: [gentoo-user] AMD Phenom X6 + Linux + "Turbo Core" ???
On Fri, 3 Dec 2010 21:22:21 +0100, Volker Armin Hemmann wrote: > Because the mhz displayed there are misleading. cpuinfo does not show > at which speeds it is acutally running if there is any oc/uc involved. > An overclocked cpu might show 2Ghz while it is running at 2.3GHz That's not true here: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz stepping: 6 cpu MHz : 2698.534 cache size : 4096 KB This is a 2.4GHz processor running at 2.7GHz, jut like cpuinfo says. -- Neil Bothwick Drop your carrier .. we have you surrounded signature.asc Description: PGP signature
Re: [gentoo-user] AMD Phenom X6 + Linux + "Turbo Core" ???
On Saturday 04 December 2010, meino.cra...@gmx.de wrote: > Volker Armin Hemmann [10-12-04 01:24]: > > On Friday 03 December 2010, meino.cra...@gmx.de wrote: > > > Hi, > > > > > > I googled this and found some other people asking the same question... > > > But I didn't find the answer. > > > > > > I am using linux kernel 2.6.36.1 vanilla to run on a AMD Phenom X6 > > > 1090T/ASUS Crosshair IV Formula system. > > > > > > I enabled "ondemand" CPU frequency scaling givernor in the kernel and > > > "Cool'n' Quiet" in the bios of the board. I also enabled "Turbo Core" > > > in the bios (which says the 3200MHz is max and 3600 MHz in case of > > > Turbo Core being used.. I disabled C1E. > > > > > > After Linux is booted (AMD64!) and idled, the CPU is running at 800Mhz > > > (nice!) and at 3200 MHz when system is under load. > > > > > > But: > > > With prime I put exactly two cores under load, so normally Turbo Core > > > would kick in...but the clock of those both cores show 3200MHz instead > > > of 3600MHz > > > > > > How can I make use of the Turbo-Core feature unde Linux? > > > > and you looked at the speed using cat /proc/cpuinfo? > > > > Because the mhz displayed there are misleading. cpuinfo does not show at > > which speeds it is acutally running if there is any oc/uc involved. An > > overclocked cpu might show 2Ghz while it is running at 2.3GHz > > > > See: > > http://www.phoronix.com/forums/showthread.php?t=26065 > > No, I didn't. > > I looked at: > > /sys/devices/system/cpu/cpu[0-5]/cpufreq/cpuinfo_max_freq > > and it is saying > > 320 > > . same stuff.
Re: [gentoo-user] AMD Phenom X6 + Linux + "Turbo Core" ???
On Saturday 04 December 2010, Neil Bothwick wrote: > On Fri, 3 Dec 2010 21:22:21 +0100, Volker Armin Hemmann wrote: > > Because the mhz displayed there are misleading. cpuinfo does not show > > at which speeds it is acutally running if there is any oc/uc involved. > > An overclocked cpu might show 2Ghz while it is running at 2.3GHz > > That's not true here: > > processor : 0 > vendor_id : GenuineIntel > cpu family : 6 > model : 15 > model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz > stepping: 6 > cpu MHz : 2698.534 > cache size : 4096 KB > > This is a 2.4GHz processor running at 2.7GHz, jut like cpuinfo says. there is a might for a reason
