On Sat, 2005-06-11 at 17:44 +1000, Nick Piggin wrote:
> Ingo Molnar wrote:
> > could you send me the .config you used for the PREEMPT_RT tests? Also,
> > you used -47-08, which was well prior the current round of performance
> > improvements, so you might want to re-run with something like -48-06 or
> > better.
> >
>
> The other thing that would be really interesting is to test latencies
> of various other kernel functionalities in the RT kernel (eg. message
> passing, maybe pipe or localhost read/write, signals, fork/clone/exit,
> mmap/munmap, faulting in shared memory, or whatever else is important
> to the RT crowd).
>
I have recently seen an analysis of this. It was internal to a customer,
but I will ask whether they object to publishing it.
Notably, there are naturally discrepancies between user space and kernel
tasks. An example of this is thread-spawn benchmarks. That is relevant
to folks who have RT code with IP to protect that must run in user
space.
Sven
-
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]