perfSONAR User Q&A and Other Discussion

[Brian Tierney <>]

Phil:

You are absolutely right. I had no idea we were turning off irqbalance.
There is no reason to turn that off. On the other hand, since bwctl only allows 1 test at a time, this should have no impact.

On Thu, Oct 23, 2014 at 5:11 PM, Philip Papadopoulos <> wrote:

Also,

turning off irqbalance is now likely passe'.  

For example, myricom 10G cards work just fine with irqbalance
irqbalancing turned. The latest version of Mellanox 40G drivers are also irqbalance aware and properly take affinity-hints. giving good performance.

My suggestion is certain services may be recommended to be turned off.

% service irqbalance status
irqbalance (pid  12919) is running...

% /opt/nuttcp/bin/nuttcp-7.2.1 -xc2/2 -l 256K -r 67.58.50.74
47104.0000 MB /  10.00 sec = 39500.3677 Mbps 98 %TX 90 %RX 0 retrans 0.16 msRTT
% uname -a
Linux fiona-r.calit2.optiputer.net 3.10.55 #1 SMP Thu Oct 2 15:59:05 PDT 2014 x86_64 x86_64 x86_64 GNU/Linux

% ethtool -i eth4
driver: mlx4_en
version: 2.3-1.0.0 (Oct  2 2014)
firmware-version: 2.32.5100
bus-info: 0000:84:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes

On Thu, Oct 23, 2014 at 2:57 PM, Philip Papadopoulos <> wrote:

answering part of my own question ---  where this is called  ... in the postinstall scriplet of
perl-perfSONAR_PS-Toolkit-SystemEnvironment

On Thu, Oct 23, 2014 at 2:53 PM, Philip Papadopoulos <> wrote:

Question says it all. Makes is kind of hard to log in to from the console.

Script in question:

/opt/perfsonar_ps/toolkit/scripts/system_environment/disable_unwanted_services

Exactly when and where is this script being called?

Thanks,
P

--
Philip Papadopoulos, PhD
University of California, San Diego
858-822-3628 (Ofc)
619-331-2990 (Fax)

--
Philip Papadopoulos, PhD
University of California, San Diego
858-822-3628 (Ofc)
619-331-2990 (Fax)

--
Philip Papadopoulos, PhD
University of California, San Diego
858-822-3628 (Ofc)
619-331-2990 (Fax)

--
Brian Tierney, http://www.es.net/tierney
Energy Sciences Network (ESnet), Berkeley National Lab
http://fasterdata.es.net