Re: [RFC 1/3] Framework for accurate node based statistics

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 6 Dec 2005, Andi Kleen wrote:

> > +static inline void mod_node_page_state(int node, enum node_stat_item item, int delta)
> > +{
> > +	vm_stat_diff[get_cpu()][node][item] += delta;
> > +	put_cpu();
> 
> Instead of get/put_cpu I would use a local_t. This would give much better code
> on i386/x86-64.  I have some plans to port over all the MM statistics counters
> over to local_t, still stuck, but for new code it should be definitely done.

Yuck. That code uses atomic operations and is not aware of atomic64_t.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux