GELI encryption - CPU requirements?
Dan Naumov
dan.naumov at gmail.com
Wed May 27 20:41:16 UTC 2009
Wow, so on a dual core Atom, I would essentially be bottlenecked by my
CPU at 18 MB/s throughput? I guess that puts GELI encryption
completely out of the question and I need to look into some other
solution :(
- Dan Naumov
> For reference, here're the values taken on a dual core Atom:
>
> type 16 bytes 64 bytes 256 bytes 1024 bytes 8192
> bytes
> aes-128 cbc 17947.16k 18502.91k 18703.91k 18271.91k
> 18955.39k
>
> aes-192 cbc 16404.93k 15966.46k 16615.41k 16115.26k
> 16466.56k
>
> aes-256 cbc 13711.70k 14016.79k 14342.35k 14109.98k
> 14738.16k
>
>
> FreeBSD dardanos 7.2-STABLE FreeBSD 7.2-STABLE #10 r192673: Sun May 24
> 10:22:05 CEST 2009
>
> CPU: Intel(R) Atom(TM) CPU 330 @ 1.60GHz (1618.44-MHz 686-class CPU)
> Origin = "GenuineIntel" Id = 0x106c2 Stepping = 2
>
> Features=0xbfe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> Features2=0x40e31d<SSE3,DTES64,MON,DS_CPL,TM2,SSSE3,CX16,xTPR,PDCM,<b22>>
> AMD Features=0x20100000<NX,LM>
> AMD Features2=0x1<LAHF>
> Cores per package: 2
> Logical CPUs per core: 2
> real memory = 2137391104 (2038 MB)
> avail memory = 2077528064 (1981 MB)
> ACPI APIC Table: <INTEL D945GLF2>
> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
> cpu0 (BSP): APIC ID: 0
> cpu1 (AP/HT): APIC ID: 1
> cpu2 (AP): APIC ID: 2
> cpu3 (AP/HT): APIC ID: 3
> ioapic0: Changing APIC ID to 2
> ioapic0 <Version 2.0> irqs 0-23 on motherboard
> kbd1 at kbdmux0
> cryptosoft0: <software crypto> on motherboard
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