[8u] RFR 8073108: Use x86 and SPARC CPU instructions for GHASH acceleration

[Doerr, Martin]

Hi Chen,

please find my console output with/without GHASH intrinsics below. The micro benchmark was executed on an Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz machine.

Best regards,
Martin


jdk8/images/j2re-image/bin/java -Dmode=GCM -DmsgSize=10000 TestAESMain
100000 iterations

algorithm=AES, mode=GCM, paddingStr=PKCS5Padding, msgSize=10000, keySize=128, noReinit=false, checkOutput=false, encInputOffset=0, encOutputOffset=0, decOutputOffset=0, lastChunkSize=32
Algorithm: AES(128bit)
Encryption cipher provider: SunJCE version 1.8
Encryption cipher algorithm: AES/GCM/PKCS5Padding
Starting encryption warm-up
Finished encryption warm-up
TestAESEncode runtime was 4092.488144 ms

algorithm=AES, mode=GCM, paddingStr=PKCS5Padding, msgSize=10000, keySize=128, noReinit=false, checkOutput=false, encInputOffset=0, encOutputOffset=0, decOutputOffset=0, lastChunkSize=32
Algorithm: AES(128bit)
Decryption cipher provider: SunJCE version 1.8
Decryption cipher algorithm: AES/GCM/PKCS5Padding
Starting decryption warm-up
Finished decryption warm-up
TestAESDecode runtime was 4273.675072 ms


jdk8/images/j2re-image/bin/java -XX:-UseGHASHIntrinsics -Dmode=GCM -DmsgSize=10000 TestAESMain
100000 iterations

algorithm=AES, mode=GCM, paddingStr=PKCS5Padding, msgSize=10000, keySize=128, noReinit=false, checkOutput=false, encInputOffset=0, encOutputOffset=0, decOutputOffset=0, lastChunkSize=32
Algorithm: AES(128bit)
Encryption cipher provider: SunJCE version 1.8
Encryption cipher algorithm: AES/GCM/PKCS5Padding
Starting encryption warm-up
Finished encryption warm-up
TestAESEncode runtime was 18781.033722 ms

algorithm=AES, mode=GCM, paddingStr=PKCS5Padding, msgSize=10000, keySize=128, noReinit=false, checkOutput=false, encInputOffset=0, encOutputOffset=0, decOutputOffset=0, lastChunkSize=32
Algorithm: AES(128bit)
Decryption cipher provider: SunJCE version 1.8
Decryption cipher algorithm: AES/GCM/PKCS5Padding
Starting decryption warm-up
Finished decryption warm-up
TestAESDecode runtime was 18267.19484 ms