CoolThreads Tuning Tool

CoolTuner no longer necessary!

It's been a while since the last CoolTuner release. There's a good reason - we haven't needed one. CoolTuner is no longer required!

CoolTuner was originally created to simplify the process of tuning UltraSPARC-T1 and -T2 platforms for optimal performance and stability. But successive releases of Solaris 10 gradually incorporated more of the required changes, to the point that all of the recommendations implemented by CoolTuner were provided by Solaris automatically.

So what version of Solaris 10 do you need to be sure you have all the recommended changes? If you are running Solaris 10 8/07 (Update 4) or later, you don't need to install CoolTuner.

UPDATE October 09: There is one exception: if you are running an UltraSPARC T2 or T2plus system (i.e. Sun SPARC Enterprise T5120, T5220, T5240, or T5440) and using 10Gigabit Ethernet, you should continue to use CoolTuner until you upgrade to Solaris 10 10/09 (Update 8) or later. This is necessary because the default value for ip:ip_soft_rings_cnt did not get changed until Solaris 10 Update 8.

To find out which release of Solaris 10 is installed on your system, run the "cat /etc/release" command:

# cat /etc/release
                       Solaris 10 8/07 s10s_u4wos_12b SPARC
           Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 16 August 2007
#

The "u4" in s10s_u4wos above shows that this is the Update 4 release.

At the time CoolTuner was released, a long-term objective was to see it become redundant. So it's satisfying to see that particular milestone reached!

Posted at 01:33AM Jul 02, 2009 by allanp in Sun  |  Comments[0]

CoolTuner 1.0.6

Announcing CoolTuner 1.0.6 availability

A new CoolTuner version, 1.0.6, is now available at the Sun Download Center.

The new version includes UltraSPARC T2 support, including the Sun SPARC Enterprise T5120 and T5220 systems. As of CoolTuner 1.0.5, a browser-based administration option became available. Check out the Cool Tools page for CoolTuner for more information.

Posted at 11:45PM Nov 19, 2007 by allanp in Sun  |  Comments[0]

CoolTuner 1.0.4

Announcing CoolTuner 1.0.4 availability

A new CoolTuner version, 1.0.4, should appear on the Sun Download Center shortly.

The new version fixes a problem of CoolTuner 1.0.3 hanging during installation under some circumstances. Thanks to the couple of people who reported the problem!

Posted at 07:40PM Mar 20, 2007 by allanp in Sun  |  Comments[0]

CoolTuner - It's Here!

Tuning Tool For CoolThreads Technology (CoolTuner)

Automatic Sun Fire T1000 and T2000 System Tuning

Customer Access

The CoolTuner tool is now freely available for download at the Sun Download Center!

Overview

CoolTuner is a software tool designed to automatically tune a Sun Fire T1000 or T2000 system, applying patches and setting system parameters to bring the system up to best practice recommendations. The tool is also capable of auto-updating itself over the Internet to take advantage of future tuning recommendations and to apply new recommended patches.

CoolTuner features

CoolTuner includes the following features:

• Adds /etc/system entries recommended for optimal performance and stability
• Sets recommended network tunables with ndd
• Re-establishes changes to network tunables whenever the sytem is booted (necessary since ndd changes do not persist across reboots)
• Applies recommended patches
  • From the tool distribution files where available
  • From Sun Update Connection where the user has setup an account (user permission must be provided during tool installation)
• Regularly checks for tool updates and applies them automatically (user permission must be provided during tool installation)

Downloads

The tool can be downloaded here.

CoolTuner Installation

You must have superuser (root) privileges to install the CoolTuner package. Run cooltuner.shar from the directory where you downloaded the file. For example, if you downloaded cooltuner.shar into the /tmp directory, you should run the following commands as root:

# chmod 755 /tmp/cooltuner.shar

# /tmp/cooltuner.shar

This process will install the package into /opt/cooltuner.

To uninstall, run /opt/cooltuner/scripts/uninstall.ksh.

Where to look for help

The Cool Tools Community can assist with questions about CoolTuner open source software within the Discussions area: forum.sun.com > Open Source Technologies > Cool Tools

Note: Support for CoolTuner software is not covered by Sun's support agreements associated with Solaris or Sun Fire servers. CoolTuner is an unsupported software.

For the Sun Fire T1000 Server, please refer to the product notes.

For the Sun Fire T2000 Server, please refer to the product notes.

Posted at 07:53AM Aug 09, 2006 by allanp in Sun  |  Comments[3]