On Fri, 9 Sep 2005, Ashok Raj wrote:
> In general we need
>
> flat_mode - #cpus <= 8 (Hotplug defined or not, so we use mask version
> for safety)
>
> physflat or cluster_mode when #cpus >8.
I agree there.
> If we choose physflat as default for #cpus <=8 (with hotplug) would make
> IPI performance worse, since it would do one cpu at a time, and requires 2
> writes per cpu for each IPI v.s just 2 for a flat mode mask version of the API.
I don't see the benefit then :/ I certainly hope we don't go that route.
Thanks,
Zwane
-
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]
| |
 |