nginx performance degradation over ssl (no replies)

Hi,

I was trying to perform some load test to check performance degradation while switching to https from http, but not really able to conclude anything here.
yeah, i have checked the details at http://nginx.org/en/docs/http/configuring_https_servers.html for performance tuning.

Could please help me to get an rough idea on performance degradation (like in terms of percentage.) with https and persistence connection enabled.

Any help from your side will be appreciated.

Thanks,
Rahul Choudhury