Messages in this thread | | | Subject | Re: [PATCH] ipv4: only produce one record in fib_seq_show | From | Andi Kleen <> | Date | 20 Oct 2002 07:58:26 +0200 |
| |
"David S. Miller" <davem@redhat.com> writes:
> Note that this would prevent ipv4 from being hacked into being > modular, but there are no plans at all to make modular ipv4 for 2.6.x > at all so this is a valid transformation/cleanup.
(if ipv4 was made modular) Just reserve the per-cpu statistics space in the main kernel when CONFIG_IPV4_MODULE is set. Then you can use it from the module as needed.
> kernel/timer.c's main data structures desperately want to be per-cpu > or allocated at boot time also. It, as has been noted often on this > list, is actually more bloat than the ipv4 statistics stuff. :-)
.. and many more data structures that are still cacheline padded too.
(my favourite is in balance_dirty_pages_ratelimit which costs 4K overall for a single per cpu counter)
-Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |