Re: 2.6.12 Performance problems

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

 



Danial Thom wrote:
> I think part of the problem is the continued
> misuse of the word "latency". Latency, in
> language terms, means "unexplained delay". Its
> wrong here because for one, its explainable. But
> it also depends on your perspective. The
> "latency" is increased for kernel tasks, while it
> may be reduced for something that is getting the
> benefit of preempting the kernel. So you really
> can't say "the price of reduced latency is lower
> throughput", because thats simply backwards.
> You've increased the kernel tasks latency by
> allowing it to be pre-empted. Reduced latency
> implies higher efficiency. All you've done here
> is shift the latency from one task to another, so
> there is no reduction overall, in fact there is
> probably a marginal increase due to the overhead
> of pre-emption vs doing nothing.

If instead of complaining you would provide the information
I've asked for two days ago someone might actually be able
to help you.
-
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]
  Powered by Linux