URL:
https://github.com/SSSD/sssd/pull/414
Title: #414: NSS: Add a way to disable memory cache
lslebodn commented:
"""
Disabling memory cache have a huge performance degradation and not only in parallel
case.
https://pagure.io/SSSD/sssd/issue/3520#comment-467642 In case of parallel asses (e.g.
multithreaded application it would be even worse)
Fedora 26 switched order of nsswitch modules due to memory cache.
http://fedoraproject.org/wiki/Releases/26/ChangeSet#SSSD_fast_cache_for_l...
There is not any valid technical reason to disable memory cache globally therefore this
code is conditional and enabled by default in upstream spec file
"""
See the full comment at
https://github.com/SSSD/sssd/pull/414#issuecomment-338129881