Hi All,

I have ported openjdk-8-72b05(from Yocto) for both armv7 and aarch64 architectures. I am sharing sample code via link, which I have run to see the crypto performance and found it is very slow compared to OpenJDK-7.

Code Location:
https://drive.google.com/open?id=0BxeL64n1TNdJMlItSWpld1lIdjg

See the output below:


root@Spider:~/Certificates# uname -a
Linux Spider 4.4.32-rt41-yocto-standard #1 SMP PREEMPT Mon Jan 9 00:24:23 PST 2017 aarch64 GNU/Linux
root@Spider:~/Certificates# time java -cp common-0.0.1-SNAPSHOT.jar:jars/* com.ericsson.athena.common.certificate.Main
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.
Generating KeyPair (Size 2048)...
PrivateKey: RSA Private CRT Key
            modulus: 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
    public exponent: 10001
   private exponent: 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
             primeP: ef0c9c674cd9134beedef5c00097840ed1b7fd281a0f8de837b217e447892c698b8e8deba9fd596550dd22fc79561b5befd4659d281a44a15d56605c780eb22d809fffda7943e6f5f6dfb592b601502882e19478ec90c6f084afb8ba5eedf2509007869718ee82454e54757165ca57269090fcc35bc19f6d00ce1877f0c56d3b
             primeQ: da44dde77039f5405f9130dce4d1eba783f1c8d03657a61fb43a8e15387d566a59006abefb5ffa2cdff9b3c661d62158da7f8d4a6b80eba4522292d9542d37350f0e48e46b0366ff65edebc781253518959d953e72c991581e24ebd76d92e238dae22ee2d5859ced88c0d03d35db5b7eccd1766d7f1cb1e0859ad62db867e3f1
     primeExponentP: aa05e9345be7459f4b6dcf92d998eab773988e79b85779d241d2ecc553d010039ddc2dbb01740de24eea8a18d2e058a342686a41a62550cd08cb07cc9d23aebd487004954a8cee37e17869f7c87614a24bbcd05255c7ff8750887f362790cc395ac7cf85a698f594ffca78a1c8096b85256bca2bd516592339605cecea1631c3
     primeExponentQ: c76cdaaf064bfe37e5d97ba2a7f2e0f43a4ae4a6d0affe99c30b291c5c73b04c14ab9bdc8942a50af14d6da3596ad32722e41dcd1c323b9af46ca06daf4a6cc1aed2e768c419e4b67f8405c44fcc161a33413ac6470cc21e97d43623abfae374fd1061b46150e613e5b9fdc99f769fbf58161db567c9690072320974d6a31d91
     crtCoefficient: bc841db992c7cdfa376cba7677e88d5b81c27455db2371224aa3029179c93d638d8c6aec2d1af782647e5320da356cb394115180296ed49841cf3adf0a2e3cff25669f172edd2c6e3ea5af0a3c55bd1349f5c74de41333a48ec0ae0fb45f747b94897ae7ab74e7156c5945a5833438113b6feda152b5a7190d584ff771637b4d

PublicKey: RSA Public Key
            modulus: 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
    public exponent: 10001

Generating Certificate...
Certificate PEM: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----


real 7m3.241s
user 7m1.972s
sys 0m0.196s

Could you please suggest any solution or patches to improve the performance?

Thanks in advance,
Srinivas