[openssl-users] Performance problems with OpenSSL and threading

[John Foley]

Not sure. 

Are you using blocking or non-blocking IO? 
Have you tried SSL_MODE_AUTO_RETRY?
Do you notice a different return value from SSL_read() after a zero byte
read compared to other errors?



On 05/06/2015 07:12 PM, Bryan Call wrote:
> Do you know if there is a way from preventing a call to
> SSL_get_error() after getting a 0 byte read from SSL_read()?  This is
> the main issue I am facing with the OpenSSL error locking right now.
>
> -Bryan
>
>
>
>
>> On May 1, 2015, at 6:49 AM, Salz, Rich <rsalz at akamai.com
>> <mailto:rsalz at akamai.com>> wrote:
>>
>>> Lock #1 is CRYPTO_LOCK_ERR, which I believe is used for logging
>>> errors.  It appears your application is generating a lot of errors
>>> for some reason.  Never tried it myself, but you probably can't
>>> disable this lock with multiple threads running.  You should take a
>>> look at the error log to identify the cause of the errors.  Then
>>> resolve the issue, whatever it may be. 
>>
>> I have a rewrite of the error-stack stuff that halves the number of
>> locks.  If you want to try it, drop me a line.
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