We've started observing strange & peculiar performance behavior for slapd instances. While ldap bind response is more than 1.5 second on one server then on another it's just 0.006 seconds.

Both the servers have similar OS, system resources & ldap version.

OS: RHEL 6.9
LDAP: 2.4.44
Backend: bdb

Could you please suggest some probable causes..?

Thanks & Kind Regards,
Saurabh Lahoti.