* Luck, Tony <[email protected]> wrote:
> > It means one cache's id is unique in all caches with same cache index
> > number.
> > For example, in all caches with index3 (i.e. level3), cache id 0 is unique
> > to identify
> > a L3 cache. But in caches with index 0 (i.e. Level0), there is also a cache
> > id 0.
> > So cache id is unique in one index. But not unique in two different index.
>
> > Does that make sense? I hope I express that correctly.
>
> We use "index" rather than "level" because that is the terminology used
> in /sys/devices/system/cpu/cpu*/cache/index*
Who can we ... thank for that nonsensical naming? :-/
> E.g. on most Intel cpus you'll typically find "index0" is the L1-data cache,
> "index1" is the L1-instruction cache, "index3" is the L2-unified cache and
> "index4" is the L3-unified cache.
Crazy. What was wrong with using 'level' or 'depth'?
Thanks,
Ingo
