I've done some basic experimenting with SMT on network loads. For the
most part, as long as you don't fill up one of the ports on the
execution engine that's doing SMT, you're okay.
I've found that a memcpy heavy load (read: normal, non-zero copy
network traffic) brings SMT threads to their knees.
On Mon, 8 Dec 2014 04:43:05 -0500
grarpamp wrote:
> HyperThreading on Intel Xeon Haswell, a benefit?
>
> What bits of FreeBSD are aware and can take proper advantage of
> Intel HTT, such as its thread/process schedulers (sched-BSD/ULE/...),
> etc?
>
> What system/app loads are, or are not, like
HyperThreading on Intel Xeon Haswell, a benefit?
What bits of FreeBSD are aware and can take proper advantage of
Intel HTT, such as its thread/process schedulers (sched-BSD/ULE/...),
etc?
What system/app loads are, or are not, likely to benefit with today's
HyperThreading CPU's? Kernel (ZFS/crypt
