quoted
quoted
quoted
Is there any reason to keep the L2 cache data-only ?
There are some rare cases where it can be useful, yes. Like when flushing
it, to avoid the flush code to pollute it.
A few bytes inside a 1MB cache are't a problem IMHO. Anyway I enabled it and
performance compiling programs is 15% lower.
You have no reason to enable "data only" in normal use. It's used during
the flush cycle of the cache to avoid polluting it while the flush code
runs, but it's set and unset automatically, so you don't need to care.
Ok, but /proc/.../l2cr tells it's data-only at boot.
Bye.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/