[openssl-users] Performance problems with OpenSSL and threading
foleyj at cisco.com
Thu May 7 17:59:00 UTC 2015
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.
>> 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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