Hi. I've got SuSE Pro 9 on two identical Dell Optiplex's, one has hyperthreading. I get really bad performance running any Java app in Tomcat on the hyperthreading. Performance is probably 10-15 times as bad as non-hyperthreading. Does SuSE 9 support hyperthreading automatically or do I need to configure something ??? Thanks, Pete. *********************************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. *********************************************************************************** For any information on the Quinn Group of Companies please visit :- http://www.quinn-group.com