Re: Network performance degradation from 2.6.11.12 to 2.6.16.20

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

 



> If you use "pmtmr" try to reboot with kernel option "clock=tsc".

That's dangerous advice - when the system choses not to use
TSC it often has a reason.

> 
> On my Opteron AMD system i normally can route 400 kpps, but with 
> timesource "pmtmr" i could only route around 83 kpps.  (I found the timer 
> to be the issue by using oprofile).

Unless you're using packet sniffing or any other application
that requests time stamps on a socket then the timer shouldn't 
make much difference. Incoming packets are only time stamped
when someone asks for the timestamps.

-Andi
-
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]
  Powered by Linux