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Re: aes performance
> as I understood tor spends most of its cpu time within openssl library aes crypto.
> Which result of "openssl speed aes" applies to tor? Is it aes-128 cbc 16 bytes?
> In this case my old Prestonia P4 Netburst Xeon box's throughput is supposed to
> be roughly about 40 MBit/s as middleman. Correct?
> type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
> aes-128 cbc 84098.99k 119729.69k 138053.97k 142741.16k 144386.04k
> aes-192 cbc 75035.35k 104143.72k 115681.81k 120099.84k 120949.42k
> aes-256 cbc 69559.47k 92221.78k 102006.05k 105361.75k 100274.74k
stupid! I mixed up openssl's benchmark bytes/s from the table above with
bits/s network throughput. Now it appears only 10% tor's cpu usage is
spent within aes crypto. What the heck is tor doing the remaining 90%?