Messages in this thread | | | Date | Tue, 27 Apr 2004 13:01:08 +0200 | From | Christoph Pohl <> | Subject | Low bogomips on IBM x445 (kernel 2.6.5) |
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Hello,
I'm currently configuring an IBM x445 box with 4 Xeon CPUs (3GHz) and hyperthreading enabled. Everything seems to work fine since kernel 2.6.5 but I keep wondering about the *very low* Bogomips numbers. Here is what I see in /proc/cpuinfo:
processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 7 cpu MHz : 2996.175 cache size : 512 KB physical id : 0 siblings : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 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 cid bogomips : 193.53
(...)
processor : 7 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 3.00GHz stepping : 7 cpu MHz : 2996.175 cache size : 512 KB physical id : 25 siblings : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 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 cid bogomips : 199.16
199 bogomips seems to be pretty low for my taste, although the box seems to work fine (and fast).
I came accross two bugs that looked very similar. However, they were filed agains 2.4.x and should have been fixed for 2.6.x:
http://www.ussg.iu.edu/hypermail/linux/kernel/0311.0/0329.html
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=115061
Any ideas?
Best regards, Christoph
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