Hello, I own an ARM-based NAS which - supposedly - has AES hardware support: The WD MyBook Live. This is the hardware it runs: http://myapm.apm.com/MyAMCC/retrieveDocument/PowerPC/ APM82181/APM82181_PB4090.pdf The AES modules are also enabled in the current kernel that it runs (CONFIG_CRYPTO_HW=y). Upon booting, I get several devices listed in /proc/crypto, but performance on a test image (mounted via loop, 1GB) is rather low (7..8 MB/s) and CPU peaks at 100%. Without encryption the machine can sustain 40..50 MB/s over GBit ethernet and 80..100 MB/s locally (from /dev/zero). Am I right that if the crypto hardware were active, the CPU load during usage of an encrypted device should not be influenced by the encryption / decryption process (because this does not happen on the CPU)? How can I find out for sure whether dm-crypt uses the hardware acceeleration features? Thanks! Jens _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
