amd64 slower than i386 on identical AMD 64 system?

[Mike Jakubik]

JoaoBR wrote:
> I never had any kind of problem with any system with <= 2Gb of Ram
>   

Ok then, how abut this puppy? It's a dual dual-core opteron server, with 
2 GB ram, and it's running perfectly. The most likely cause of your 
problem is hw, if you have problems with 2GB of ram on a normal kernel.

---
CPU: Dual Core AMD Opteron(tm) Processor 265 (1808.34-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x20f12  Stepping = 2
  
Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Hyperthreading: 2 logical CPUs
  AMD Features=0xe0500000<NX,AMIE,LM,DSP,3DNow!>
real memory  = 2146500608 (2047 MB)
avail memory = 2099249152 (2002 MB)
ACPI APIC Table: <PTLTD          APIC  >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3