> Am 11.09.2020 um 21:36 schrieb Luck, Tony <tony.l...@intel.com>:
>
>
>>
>> It's actually really hard to map a DIMM to a physical address.
>> Interleaving can mean that one page actually spans a bunch of DIMMs.
>
> Heh! If NUMA mode is turned off your single page may have cache lines
> from *every* DIMM in the system. Even with NUMA turned on the page
> will have cache lines from every DIMM on the socket.
>
Thanks Dave and Tony, that‘s valuable information!
How would it behave after hotplugging a single DIMM - I assume a single page
will only be mapped to that DIMM (otherwise a lot of stuff would habe to be
moved around. Would the mapping change after a reboot - especially can a DIMM
that could get hotunplugged before suddenly no longer be hotunplugged
individually?
> -Tony
