On Tue, Sep 13, 2005 at 03:12:16PM -0700, David S. Miller wrote:
> From: Ravikiran G Thirumalai <[email protected]>
> Date: Tue, 13 Sep 2005 15:07:37 -0700
> ...
> But using bigrefs, no way. We have enough trouble making the data
> structures small without adding bloat like that. A busy server can
> have hundreds of thousands of dst cache entries active on it, and they
> chew up enough memory as is.
>
But even 1 Million dst cache entries would be 16+4 MB additional for a 4 cpu
box....is that too much? The alloc_percpu reimplementation interleaves
objects on cache lines, unlike the existing implementation which pads per-cpu
objects to cache lines...
If you are referring to embedded routing devices,
would they use CONFIG_NUMA or CONFIG_SMP?? (bigrefs nicely fold back to
regular atomic_t s on UPs)
Thanks,
Kiran
-
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]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |