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(solved)dual core seen as single core (thermal throttling)
the computer was working really hard and all was laggy, so i checked inxi and i have noticed that i run in single core instead of dual core. does anyone have any idea what is wrong? could it be thermal throttling?
:: Code :: inxi -Fz
System: Host: hell Kernel: 3.9-6.dmz.1-liquorix-686 i686 (32 bit) Desktop: Fluxbox 1.3.5 Distro: antiX Machine: System: LENOVO (portable) product: 89329WU version: ThinkPad R61/R61i Mobo: LENOVO model: 89329WU Bios: LENOVO version: 7OETC3WW (2.23 ) date: 05/12/2009 CPU: Single core Intel Core2 Duo CPU T5250 (-UP-) cache: 2048 KB flags: (lm nx pae sse sse2 sse3 ssse3) clocked at 1000.00 MHz Graphics: Card: Intel Mobile GM965/GL960 Integrated Graphics Controller (primary) X.Org: 1.12.4 driver: intel Resolution: 1280x800@60.0hz GLX Renderer: Mesa DRI Intel 965GM x86/MMX/SSE2 GLX Version: 2.1 Mesa 9.1.3 Audio: Card: Intel 82801H (ICH8 Family) HD Audio Controller driver: snd_hda_intel Sound: Advanced Linux Sound Architecture ver: k3.9-6.dmz.1-liquorix-686 Network: Card-1: Broadcom NetLink BCM5787M Gigabit Ethernet PCI Express driver: tg3 IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter> Card-2: Intel PRO/Wireless 3945ABG [Golan] Network Connection driver: iwl3945 IF: wlan0 state: down mac: <filter> Drives: HDD Total Size: 120.0GB (37.4% used) 1: id: /dev/sda model: HITACHI_HTS54161 size: 120.0GB Partition: ID: / size: 2.0G used: 1.7G (87%) fs: ext4 Sensors: System Temperatures: cpu: 56.0C mobo: 39.0C Fan Speeds (in rpm): cpu: 3009 Info: Processes: 101 Uptime: 1:59 Memory: 454.6/998.4MB Client: Shell (bash) inxi: 1.9.8 < Edited by dark-D :: Jun 16, 13, 1:13 > Back to top |
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show this: cat /proc/cpuinfo
to make sure my recent update did not break something in the cpu section, it should not have, but one never knows. Let's look at the /proc/cpuinfo, but your description makes me fear that a cpu core died. Back to top |
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:: Code :: cat /proc/cpuinfo
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T5250 @ 1.50GHz stepping : 13 microcode : 0xa3 cpu MHz : 1000.000 cache size : 2048 KB fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 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 tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm bogomips : 2992.43 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: i'm in the middle of something, but i will try with an older liveusb to see if it's something like acpi. if not that sucks. Back to top |
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looks bad to me, if inxi was showing you two cores before, and now shows one, that's a sign that it may not physically be present.
I don't know how the intel cpus handle heat issues so I could be wrong on this, but given your description, I have to wonder. Back to top |
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no luck with the older liveusb. i will leave it over night to cool off, but i don't have my hopes up.
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Very odd indeed. Like h2, I think there's a hardware restriction happening behind the scenes. Is there anything in the bios that might help you understand what's going on? You have a thinkpad, so maybe the bios will include more information than the typical consumer laptop.
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after a cold boot the core is back on. it seams strange to throttle at those temps. i guess i need to change the thermal compound on it.
edit: also earlier i was not able to post replies on the forum. i have a dynamic IP from the ISP, so that must be the cause. strange things are happening this weekend. :: Code :: inxi -Cxx
CPU: Dual core Intel Core2 Duo CPU T5250 (-MCP-) cache: 2048 KB flags: (lm nx pae sse sse2 sse3 ssse3) bmips: 5985.52 Clock Speeds: 1: 1000.00 MHz 2: 1000.00 MHz :: Code :: cat /proc/cpuinfo
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T5250 @ 1.50GHz stepping : 13 microcode : 0xa3 cpu MHz : 1000.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 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 nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm bogomips : 2992.76 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 : 15 model name : Intel(R) Core(TM)2 Duo CPU T5250 @ 1.50GHz stepping : 13 microcode : 0xa3 cpu MHz : 1000.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fdiv_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 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 nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm dtherm bogomips : 2992.76 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: Back to top |
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good, so inxi can be trusted. There's some xeon glitches I'm working on now, that manifest in some vm /proc/cpuinfo so I have to be careful how I work around those glitches, ie, not break existing stuff.
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inxi was reliable for me the entire time i used it. thanks for the help.
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