tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Shapira, Yoav" <>
Subject RE: Hyperthreading performance dead !
Date Thu, 26 Feb 2004 13:44:48 GMT

Not a tomcat issue.  As (Ralph I think it was?) said, it's between the
JVM implementation and the OS threading library.  Others have noted bad
performance on HT machines.  Tiger (JDK 1.5) on Intel is supposed to be

Yoav Shapira
Millennium ChemInformatics

>-----Original Message-----
>From: []
>Sent: Thursday, February 26, 2004 7:30 AM
>Subject: Hyperthreading performance dead !
>I've been testing my Java app in Tomcat on a Hyperthreading Dell PC -
>identical to current production dell bar HT. The app runs more than 20x
>slow compared with existing system. There is no difference at all
>/ software apart from HT.
>Does Tomcat work on Hyperthreading PC's / any1 else had & solved this
>problem ??
>QUINN-direct Insurance Limited is regulated by the Irish Financial
>Regulatory Authority
>This email and any files transmitted with it are confidential and
>solely for the use of the individual or entity to whom they are
>If you have received this email in error please notify the system
>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 :-
>To unsubscribe, e-mail:
>For additional commands, e-mail:

This e-mail, including any attachments, is a confidential business communication, and may
contain information that is confidential, proprietary and/or privileged.  This e-mail is intended
only for the individual(s) to whom it is addressed, and may not be saved, copied, printed,
disclosed or used by anyone else.  If you are not the(an) intended recipient, please immediately
delete this e-mail from your computer system and notify the sender.  Thank you.

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message