We would like to enable hardware-assisted lock optimizations in glibc on
multiple architectures. In general, this feature works only on
production hardware with current firmware, and not on pre-production
machines some vendors provide for architecture bringup.
Are the Fedora builders using hardware with support contracts, and are
vendor firmware updates applied occasionally, so that we can rely on
what the CPU/firmware reports about CPU features? (Some vendors had to
disable lock optimizations through firmware updates because the CPU
implementation was buggy.)
Do we at least apply microcode updates early during Linux boot on the
builders?
What about default Fedora installations? Do they come with early boot
microcode updates?
If all this is covered on the Fedora side, we probably can just enable
lock optimizations, and we do not need to implement complicated hardware
blacklisting.
Thanks,
Florian
_______________________________________________
devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
