Hello, thanks for the inputs. On Mon, Nov 01, 2010 at 08:58:28AM +0100, Heinz Diehl wrote:
On 31.10.2010, Oliver Kullmann wrote:
I'm here experiencing an alarming problem (not just KDE or so, but the kernel): I have a laptop with a quadcore i5 processor, but the system doesn't want to use it!
You maybe could be affected by this phenomenon here: https://bugzilla.kernel.org/show_bug.cgi?id=19702
Actually, frequency doesn't seem to be a (big) problem. Actually, yesterday for the first time it got stuck at 1.2 GHz (scheme "performance" regarding cpu-frequency), but switching to "on demand" got it back on track (switching for each core between 1.2 GHz and 2.4 GHz). So there is something wrong, but by just toggling the modes it seems fixable. Regarding the usage of all four cores: NOW, as I had it a week ago, it runs fine again: Using all four cores as required (independent of the frequency). And, again, Bubblemoon shows correct (that is, sensible) cpu temperature. Could it be that if the temperature sensor doesn't work properly, then the system "hesitates" to use all cores, and after some time the system "warms up", the temperature sensor starts working, and all cores are being used? Here is the data for the various outputs (the frequency shown is currently 1.2GHz, since I run on battery): ------------------------------------------------------
rpm -qa kernel* kernel-default-2.6.34.7-0.5.1.x86_64 kernel-desktop-2.6.34.7-0.5.1.x86_64 kernel-firmware-20100617-2.2.noarch
cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 5 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat tpr_shadow vnmi flexpriority ept vpid bogomips : 4788.01 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:
processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 5 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 2 apicid : 4 initial apicid : 4 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat tpr_shadow vnmi flexpriority ept vpid bogomips : 4788.05 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 5 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat tpr_shadow vnmi flexpriority ept vpid bogomips : 4788.04 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 5 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 2 apicid : 5 initial apicid : 5 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat tpr_shadow vnmi flexpriority ept vpid bogomips : 4788.02 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:
cat /etc/SuSE-release openSUSE 11.3 (x86_64) VERSION = 11.3
kullmann-0:~> uname --all Linux linux-ubd8.site 2.6.34.7-0.5-desktop #1 SMP PREEMPT 2010-10-25 08:40:12 +0200 x86_64 x86_64 x86_64 GNU/Linux ----------------------------------------------------------- thanks again Oliver -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org