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<p dir="auto">Hi Nikos ,</p>
<p dir="auto">thanks for taking out your precious time and replying ,</p>
<p dir="auto">Summary of analysis .</p>
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<li>Server uses GNUTLS for handshake and security .</li>
<li>Architecture is x86.</li>
<li>used jmeter as client to fire requests to Server .</li>
<li>Tested with following symmetric ciphers and hashalgos<br>
AES_128_CBC_SHA1, AES_128_CBC_SHA256, AES_256_CBC_SHA1, AES_256_CBC_SHA256.</li>
<li>For constant input client requests =3000 ,DH=2048 , the Cpu-Busy-Time clearly jumped from 15.43 sec to 128.98 sec
an approx 9x increase .</li>
<li>Ciphers or Algos is not making any difference in performance , its actually DH from 1024 to 2048 which is making a difference.</li>
<li>set Envniornment variable GNUTLS_CPUID_OVERRIDE=0x2 to run AES NI , but that doesnot have any effect .</li>
<li>set Envniornment GNUTLS_DEBUG_LEVEL =5 it actually piles lot of logs (not related to performance,just for testing )</li>
<li>suggest some steps at the servers side GNUTLS to improve performance .</li>
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