Hyperthreading Issues
Dantavious
derrick at uniquestrength.net
Sat May 19 16:29:39 UTC 2007
Hi.
It seems to me (From the limited knowledge that I have!) that my machine is
not hyperthreading. I have done the following.
1. Ensured that the capability is enabled in the BIOS.
2. FreeBSD recongizes the capaiblity
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (1866.74-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf29 Stepping = 9
Features=0xbfebfbff<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,HTT,TM,PBE>
Features2=0x4400<CNTX-ID,<b14>>
Logical CPUs per core: 2
real memory = 1073676288 (1023 MB)
avail memory = 1033097216 (985 MB)
ACPI APIC Table: <IntelR AWRDACPI>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
3. The kernel is built for SMP
# SMP -- Generic kernel configuration file for FreeBSD/i386 SMP
# Use this for multi-processor machines
#
# $FreeBSD: src/sys/i386/conf/SMP,v 1.5.6.1 2005/09/18 03:37:58 scottl Exp $
include GENERIC1
ident SMP-CUSTOM
# To make an SMP kernel, the next line is needed
options SMP # Symmetric MultiProcessor Kernel
device atapicam
4. In the past top would show the 2 different logical CPUs working however,
this is not the case anymore.
Can anyone help we with this issue. I am using 6.2 release.
Thanks in advance.
Derrick
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