cache userPassword with bind

I am testing a bit with bind's. With consecutive binds with the same test account I always get 'result not in cache'. How can I get this in cache?

access_allowed: result not in cache (userPassword)

6628dba5.0659c27a 0x7ff072843b38 conn=1023 op=0 BIND dn="uid=test,dc=me,dc=local" method=128 6628dba5.0660ea46 0x7ff072843b38 => access_allowed: result not in cache (userPassword) 6628dba5.066470b9 0x7ff072843b38 => access_allowed: auth access to "uid=test,dc=me,dc=local " "userPassword" requested 6628dba5.0667703c 0x7ff072843b38 => slap_access_allowed: backend default auth access granted to "(anonymous)" 6628dba5.0668099f 0x7ff072843b38 => access_allowed: auth access granted by read(=rscxd)