Hallo,
nach langem Urlaub und zuviel Stress beim Umzug melde ich mich halbwegs zurück.
Die neue CPU hat nicht nur mehr Performance wegen dem höheren Takt, sondern auch mehr Power durch die zusätzlichen Features in der CPU. Hier ein kleiner Auszug aus dem Datenblatt:
ZitatAlles anzeigenThis device integrates two XOR engines. Each one contain two XOR/DMA channels (for a total of
four XOR/DMA channels)
The section describes a single XOR engine.
The XOR engine is a generic acceleration engine for storage applications that provides a low
latency, high throughput XOR calculation capabilities, enabling CPU XOR calculation off-loading in
various RAID implementations. In addition, the engine provides iSCSI CRC32C calculation, DMA
operation, memory initialization, support.
The XOR engine enables PC/Server manufactures (ROM), Internal RAID Controllers and External
RAID systems to speed up overall system performance.
XOR engine features:
Two separate channels for enabling concurrent operation (for example, concurrent XOR and iSCSI CRC32C calculations)
1 KB temporary result store queue per channel. Arranged as 128 X 8B buffer
Support packing/unpacking of unaligned data transfers
XOR calculation for up to eight data block sources
Data block size up to 16 MB
Programmable maximum burst size on read and write
Descriptor chain mechanism
Hot insertion of new descriptors to chain
iSCSI CRC32C calculation that is compliant with IPS iSCSI version 13 draft DMA operation
Memory initialization support
Write access protection of configuration registers
ZitatThe device integrates hardware-based cryptographic engines and security accelerator (CESA). The
cryptographic engines and the security accelerator reduce CPU packet processing overhead by
performing time consuming cryptographic operations such as Advanced Encryption Standard (AES),
Data Encryption Standard (DES), and Triple Data Encryption Standard (3DES) encryption and
Message Digest 5 (MD5) and Secure Hash Algorithm 1 (SHA1) authentication.
Das komplette Datenblatt kann unter http://www.marvell.com/files/p…80_9x_6281_OpenSource.pdf eingesehen werden.