Does your linux box have a kernel capable of utilising hyper-threading? I think only the very new 2.6 kernels can utilise it..
On Tue, 2004-04-13 at 12:55, Nicholas Bernstein wrote: > yes, dual hyper-threaded xeons. > > On Mon, 2004-04-12 at 12:02, Shapira, Yoav wrote: > > Hi, > > Was the linux box hyper-threaded? > > > > Yoav Shapira > > Millennium Research Informatics > > > > > > >-----Original Message----- > > >From: Nicholas Bernstein [mailto:[EMAIL PROTECTED] > > >Sent: Monday, April 12, 2004 2:50 PM > > >To: Tomcat Users List > > >Subject: IBM Java VS SUN Java > > > > > >Recently, we've been doing some load testing of apache (1.3.x) w/ > > tomcat > > >4.1.29 & 5.0.19 and were surprised at how slow it was responding on our > > >redhat linux testbed system. We did some comparisons to a Win2k tomcat > > >server, and the Win2k server *BLEW* it out of the water in terms of > > >speed and load limits. After some mucking around, we narrowed down the > > >difference to the java implementation. We switched over from sun's java > > >jdk1.4.2_04 to IBMJava2-141 and saw some speed improvements and huge > > >differences in load limits, i.e. it could scale much higher. > > > > > >I was wondering if anyone had experienced any problems due to switching > > >to IBM's java, and if so what they were. Also, if anyone has any hints, > > >links, or general advice on how to speed things up, be it tomcat > > tuning, > > >or java, it would be very appreciated. The windows box, while not able > > >to scale as well, does generally respond in 1/4 the time of the linux > > >box. > > > > > >Thanks in Advance, any advice is appreciated. > > > > > >-- > > >+---------------------------------------------------------------+ > > >| Nicholas Bernstein | [EMAIL PROTECTED] | > > >| UNIX Systems Administrator | http://www.docmagic.com | > > >| Document Systems Inc. | | > > >| gpg: F706 8C4E 78FA DDDD 53A0 019F D983 FE28 2002 D1F3 | > > >+---------------------------------------------------------------+ > > > > > > > > >--------------------------------------------------------------------- > > >To unsubscribe, e-mail: [EMAIL PROTECTED] > > >For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > 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: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] -- Paul Richards <[EMAIL PROTECTED]> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
