Fwd: Custom Linux Kernel Scheduler issue
Kenneth Adam Miller
kennethadammiller at gmail.com
Thu Nov 24 21:23:34 EST 2016
Thank you Greg. I got at least my unit tests to execute about as fast as my
host when I turned on KVM support with qemu while testing. I can't test
With the dedicated hardware or software yet, but now I have another test
case to run by changing the provisioned memory.
On Nov 24, 2016 1:47 PM, "Greg KH" <greg at kroah.com> wrote:
> On Thu, Nov 24, 2016 at 01:05:47PM -0500, Kenneth Adam Miller wrote:
> > So, I ran perf on my host and it came back far more true. The top
> consumers of
> > time were all atomics and some function called sse3, which I believe is
> a super
> > fast memcpy implementation provided the the arch. In addition, all the
> > time consumers are within my image- it stayed out of the kernel as
> designed and
> > it used additional extensions and features.
> > I just thought of something-what if there is some kind of page size
> > between my host and my Linux kernel causing the performance problems?
> You tell me, are the page sizes different? You have said that memory
> accesses are different, so of course performance is going to be
> different. To expect otherwise is just crazy :)
> good luck!
> greg k-h
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