[gnutls-devel] GnuTLS | GNUTLS_CPUID_OVERRIDE does not have any impact on performance (#566)

[Development of GNU's TLS library]

HI Nikos ,

--benchmark-tls-kx
Testing key exchanges (RSA/DH bits: 3072, EC bits: 256)
              DHE_RSA_AES_128_CBC_SHA1  1.47 transactions/sec
           (avg. handshake time: 681.38 ms, sample variance: 2.55)
            ECDHE_RSA_AES_128_CBC_SHA1  3.78 transactions/sec
           (avg. handshake time: 264.11 ms, sample variance: 0.32)
          ECDHE_ECDSA_AES_128_CBC_SHA1  28.95 transactions/sec
           (avg. handshake time: 34.44 ms, sample variance: 0.25)
                  RSA_AES_128_CBC_SHA1  4.09 transactions/sec
           (avg. handshake time: 244.67 ms, sample variance: 0.23)


---------------------------------------------------------------------------------------------------------------
--benchmark-tls-ciphers
Testing throughput in cipher/MAC combinations (payload: 1400 bytes)
                  RSA_ARCFOUR_128_SHA1  18.37 MB/sec
                   RSA_ARCFOUR_128_MD5  21.85 MB/sec
                RSA_AES_128_GCM_SHA256  6.97 MB/sec
                       RSA_AES_128_CCM  7.27 MB/sec
           ECDHE_RSA_CHACHA20_POLY1305  10.66 MB/sec
                  RSA_AES_128_CBC_SHA1  9.77 MB/sec
             RSA_CAMELLIA_128_CBC_SHA1  7.43 MB/sec

Testing throughput in cipher/MAC combinations (payload: 15360 bytes)
                  RSA_ARCFOUR_128_SHA1  21.04 MB/sec
                   RSA_ARCFOUR_128_MD5  24.88 MB/sec
                RSA_AES_128_GCM_SHA256  7.30 MB/sec
                       RSA_AES_128_CCM  7.62 MB/sec
           ECDHE_RSA_CHACHA20_POLY1305  11.62 MB/sec
                  RSA_AES_128_CBC_SHA1  10.74 MB/sec
             RSA_CAMELLIA_128_CBC_SHA1  8.00 MB/sec

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