I'm not sure what a Xeon would do though, but I thought the Avotons had the same bandwidth.
Code:
CPU: Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz (2700.00-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x306e4 Family = 0x6 Model = 0x3e Stepping = 4
Features=0x1fa3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,MMX,FXSR,SSE,SSE2,SS,HTT>
Features2=0x9e982203<SSE3,PCLMULQDQ,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,HV>
AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
AMD Features2=0x1<LAHF>
TSC: P-state invariant
real memory = 34359738368 (32768 MB)
avail memory = 33105321984 (31571 MB)
Event timer "LAPIC" quality 600
[...]
# mkdir /tmp/ram && mdmfs -M -S -o async -s 10240m md10 /tmp/ram && dd if=/dev/zero of=/tmp/ram/test bs=1M count=8192 && umount /tmp/ram && mdconfig -d -u md10 && rmdir /tmp/ram
8192+0 records in
8192+0 records out
8589934592 bytes transferred in 9.839446 secs (873009999 bytes/sec)
#
Code:
CPU: Intel(R) Xeon(R) CPU E31230 @ 3.20GHz (3198.93-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x206a7 Family = 6 Model = 2a Stepping = 7
Features=0xfe3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS>
Features2=0x82982203<SSE3,PCLMULQDQ,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,AESNI,HV>
AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
AMD Features2=0x1<LAHF>
TSC: P-state invariant
real memory = 8589934592 (8192 MB)
avail memory = 8242987008 (7861 MB)
[...]
# mkdir /tmp/ram && mdmfs -M -S -o async -s 10240m md10 /tmp/ram && dd if=/dev/zero of=/tmp/ram/test bs=1M count=8192 && umount /tmp/ram && mdconfig -d -u md10 && rmdir /tmp/ram
8192+0 records in
8192+0 records out
8589934592 bytes transferred in 9.223455 secs (931314202 bytes/sec)
This looks to be more a CPU core speed test than anything else; the E3 has the higher clock speed and performs better. The Avoton appears to pull in at about half as fast, which is generally consistent with what is known about the performance of that part so far.
I'm unclear as to the point that was being made though.