Re: strange response time question
Yuxin Ren <[email protected]>
| Newsgroups | gmane.comp.micro-kernel.l4.devel |
|---|---|
| Message-ID | <CAAKbDrfjYST+cDkRicd1qZQPUEByt8q1LWNEF17iTyAkGthMtw@mail.gmail.com> |
I did not measure min value. The avg is around 5000 cycs, and my machine is 2.8GHz. Client and server are in different core. On Wed, Aug 6, 2014 at 5:42 PM, Adam Lackorzynski <[email protected] > wrote: > On Tue Aug 05, 2014 at 17:19:09 -0400, Yuxin Ren wrote: > > Sorry, it's my typo. > > The worse case is 200us. > > What is min and avg? > > > In my test, before the client sends IPC, I record the time using rdtsc. > > When the server receives this IPC, I also do rdtsc. > > The difference between this is the response time. I run this many > > iterations and the maximum value is the worse case result. > > I filter out the timer interrupt, but do not flush the cache and tlb. > > Are server and client running on the same or different cores? > > > > > Adam > -- > Adam [email protected] > Lackorzynski http://os.inf.tu-dresden.de/~adam/ > > _______________________________________________ > l4-hackers mailing list > [email protected] > http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers > _______________________________________________ l4-hackers mailing list [email protected] http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers