RE: Tomcat Benchmarking / Load Testing
Hi, There are some entries on the FAQ (Misc section I think is where I put it), but it's far from complete. No one wants to give out details, it's all confidential/proprietary/security-constrained information. Yoav Shapira Millennium Research Informatics -Original Message- From: Gaurav Vaish [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 31, 2004 12:20 AM To: Tomcat Developers List Subject: Re: Tomcat Benchmarking / Load Testing Hi Rémy, Thanks for your response. In anycase, is there a list of people / companies using Tomcat (standalone or with Apache)? Happy Hacking, Gaurav Vaish http://gallery.mastergaurav.net -- On Mon, 30 Aug 2004 23:51:22 +0200, Remy Maucherat [EMAIL PROTECTED] wrote: Gaurav Vaish wrote: Hi, I am looking for some good case-study on Tomcat loadtest and benchmarking. It may or may not be with mod_jk(2) however a study with the following paramters would be useful: - JDK Version - Tomcat version - OS (with version and SPs) - Apache Version (if not standalone) - Concurrent Users (Threads) - Response Time The problem is that we have a e-Learning application running on Tomcat 4.x (planning to migrate to 5.x) which faced severe problems when put on production server. Stress testing in labs were passed gracefully, however it gives several issues with around 500 concurrent users on the production server. In anycase, which would be more scalable (load) - standalone Tomcat or with Apache/mod_jk? The details of the production server are: - Red Hat Enterprise Server 9.0 - Kernel 2.4.9 - JDK 1.4.2 (Sun JDK) - Tomcat 4.0 (Standalone) - 2048MB RAM - 4-Processor CPU (2GHz each), Intel 386 Tomcat 5.0 is faster than 4.1 which is faster than 4.0, but we don't have any numbers to give you. Feel free to contribute results. Rémy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - 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]
Re: Tomcat Benchmarking / Load Testing
there's plenty of big sites using tomcat. They just don't say it. I know several sites getting millions of page views a day using tomcat just fine. peter On Tue, 31 Aug 2004 09:49:32 +0530, Gaurav Vaish [EMAIL PROTECTED] wrote: Hi Rémy, Thanks for your response. In anycase, is there a list of people / companies using Tomcat (standalone or with Apache)? Happy Hacking, Gaurav Vaish http://gallery.mastergaurav.net -- On Mon, 30 Aug 2004 23:51:22 +0200, Remy Maucherat [EMAIL PROTECTED] wrote: Gaurav Vaish wrote: Hi, I am looking for some good case-study on Tomcat loadtest and benchmarking. It may or may not be with mod_jk(2) however a study with the following paramters would be useful: - JDK Version - Tomcat version - OS (with version and SPs) - Apache Version (if not standalone) - Concurrent Users (Threads) - Response Time The problem is that we have a e-Learning application running on Tomcat 4.x (planning to migrate to 5.x) which faced severe problems when put on production server. Stress testing in labs were passed gracefully, however it gives several issues with around 500 concurrent users on the production server. In anycase, which would be more scalable (load) - standalone Tomcat or with Apache/mod_jk? The details of the production server are: - Red Hat Enterprise Server 9.0 - Kernel 2.4.9 - JDK 1.4.2 (Sun JDK) - Tomcat 4.0 (Standalone) - 2048MB RAM - 4-Processor CPU (2GHz each), Intel 386 Tomcat 5.0 is faster than 4.1 which is faster than 4.0, but we don't have any numbers to give you. Feel free to contribute results. Rémy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Benchmarking / Load Testing
Can you please name a few? Happy Hacking, Gaurav Vaish ttp://gallery.mastergaurav.net -- On Tue, 31 Aug 2004 08:11:50 -0500, Peter Lin [EMAIL PROTECTED] wrote: there's plenty of big sites using tomcat. They just don't say it. I know several sites getting millions of page views a day using tomcat just fine. peter On Tue, 31 Aug 2004 09:49:32 +0530, Gaurav Vaish [EMAIL PROTECTED] wrote: Hi Rémy, Thanks for your response. In anycase, is there a list of people / companies using Tomcat (standalone or with Apache)? Happy Hacking, Gaurav Vaish http://gallery.mastergaurav.net -- On Mon, 30 Aug 2004 23:51:22 +0200, Remy Maucherat [EMAIL PROTECTED] wrote: Gaurav Vaish wrote: Hi, I am looking for some good case-study on Tomcat loadtest and benchmarking. It may or may not be with mod_jk(2) however a study with the following paramters would be useful: - JDK Version - Tomcat version - OS (with version and SPs) - Apache Version (if not standalone) - Concurrent Users (Threads) - Response Time The problem is that we have a e-Learning application running on Tomcat 4.x (planning to migrate to 5.x) which faced severe problems when put on production server. Stress testing in labs were passed gracefully, however it gives several issues with around 500 concurrent users on the production server. In anycase, which would be more scalable (load) - standalone Tomcat or with Apache/mod_jk? The details of the production server are: - Red Hat Enterprise Server 9.0 - Kernel 2.4.9 - JDK 1.4.2 (Sun JDK) - Tomcat 4.0 (Standalone) - 2048MB RAM - 4-Processor CPU (2GHz each), Intel 386 Tomcat 5.0 is faster than 4.1 which is faster than 4.0, but we don't have any numbers to give you. Feel free to contribute results. Rémy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat Benchmarking / Load Testing
Hi, I'm sure he would if he could, but as I said they're mostly confidential. This is getting off-topic for the tomcat-dev list, please continue discussion on tomcat-user if you'd like. Yoav Shapira Millennium Research Informatics -Original Message- From: Gaurav Vaish [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 31, 2004 9:39 AM To: Peter Lin Cc: Tomcat Developers List Subject: Re: Tomcat Benchmarking / Load Testing Can you please name a few? Happy Hacking, Gaurav Vaish ttp://gallery.mastergaurav.net -- On Tue, 31 Aug 2004 08:11:50 -0500, Peter Lin [EMAIL PROTECTED] wrote: there's plenty of big sites using tomcat. They just don't say it. I know several sites getting millions of page views a day using tomcat just fine. peter On Tue, 31 Aug 2004 09:49:32 +0530, Gaurav Vaish [EMAIL PROTECTED] wrote: Hi Rémy, Thanks for your response. In anycase, is there a list of people / companies using Tomcat (standalone or with Apache)? Happy Hacking, Gaurav Vaish http://gallery.mastergaurav.net -- On Mon, 30 Aug 2004 23:51:22 +0200, Remy Maucherat [EMAIL PROTECTED] wrote: Gaurav Vaish wrote: Hi, I am looking for some good case-study on Tomcat loadtest and benchmarking. It may or may not be with mod_jk(2) however a study with the following paramters would be useful: - JDK Version - Tomcat version - OS (with version and SPs) - Apache Version (if not standalone) - Concurrent Users (Threads) - Response Time The problem is that we have a e-Learning application running on Tomcat 4.x (planning to migrate to 5.x) which faced severe problems when put on production server. Stress testing in labs were passed gracefully, however it gives several issues with around 500 concurrent users on the production server. In anycase, which would be more scalable (load) - standalone Tomcat or with Apache/mod_jk? The details of the production server are: - Red Hat Enterprise Server 9.0 - Kernel 2.4.9 - JDK 1.4.2 (Sun JDK) - Tomcat 4.0 (Standalone) - 2048MB RAM - 4-Processor CPU (2GHz each), Intel 386 Tomcat 5.0 is faster than 4.1 which is faster than 4.0, but we don't have any numbers to give you. Feel free to contribute results. Rémy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - 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]
Re: Tomcat Benchmarking / Load Testing
We, University of Florida, use Tomcat 5 for our webapps when we can. (We also use WebSphere and WebLogic when needed.) Our largest use of Tomcat is with our webmail cluster. You can find some stats for that at: http://webstats.ufl.edu/webmail.ufl.edu/ (Note: that the monthly reports are behind because of problems with analog on AIX.) Yesterday during peak usage we were handling 55 request per second: http://webstats.ufl.edu/webmail.ufl.edu/daily-2004-08-30.html#hoursum Our setup is 3 machines running Apache HTTPD with mod_jk load balancing to 4 machines running Tomcat 5. While all of those machines are beefy quad CPU boxes with between 2 to 8 gig of ram none of them are single purpose machines. Our Apache HTTPD machines serve over a hundred virtual hosts, so there are a lot of other factors which makes it hard for me to assert any performance numbers of our tomcat setup. I can say our last problems with our webmail setup stemmed from running out of simultaneous connections in apache httpd when all the students returned this past fall. The 4 boxes running tomcat is overpowered to handle any surge in usage and I haven't seen their CPU load cross 33%. On Aug 31, 2004, at 9:39 AM, Gaurav Vaish wrote: Can you please name a few? On Tue, 31 Aug 2004 08:11:50 -0500, Peter Lin [EMAIL PROTECTED] wrote: there's plenty of big sites using tomcat. They just don't say it. I know several sites getting millions of page views a day using tomcat just fine. -- Sandy McArthur Government big enough to supply everything you need is big enough to take everything you have ... The course of history shows that as a government grows, liberty decreases. -- Thomas Jefferson smime.p7s Description: S/MIME cryptographic signature
RE: Tomcat Benchmarking / Load Testing
Hi, Thanks for sharing. (FAQ'ed) Yoav Shapira Millennium Research Informatics -Original Message- From: Sandy McArthur [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 31, 2004 11:19 AM To: Tomcat Developers List Subject: Re: Tomcat Benchmarking / Load Testing We, University of Florida, use Tomcat 5 for our webapps when we can. (We also use WebSphere and WebLogic when needed.) Our largest use of Tomcat is with our webmail cluster. You can find some stats for that at: http://webstats.ufl.edu/webmail.ufl.edu/ (Note: that the monthly reports are behind because of problems with analog on AIX.) Yesterday during peak usage we were handling 55 request per second: http://webstats.ufl.edu/webmail.ufl.edu/daily-2004-08-30.html#hoursum Our setup is 3 machines running Apache HTTPD with mod_jk load balancing to 4 machines running Tomcat 5. While all of those machines are beefy quad CPU boxes with between 2 to 8 gig of ram none of them are single purpose machines. Our Apache HTTPD machines serve over a hundred virtual hosts, so there are a lot of other factors which makes it hard for me to assert any performance numbers of our tomcat setup. I can say our last problems with our webmail setup stemmed from running out of simultaneous connections in apache httpd when all the students returned this past fall. The 4 boxes running tomcat is overpowered to handle any surge in usage and I haven't seen their CPU load cross 33%. On Aug 31, 2004, at 9:39 AM, Gaurav Vaish wrote: Can you please name a few? On Tue, 31 Aug 2004 08:11:50 -0500, Peter Lin [EMAIL PROTECTED] wrote: there's plenty of big sites using tomcat. They just don't say it. I know several sites getting millions of page views a day using tomcat just fine. -- Sandy McArthur Government big enough to supply everything you need is big enough to take everything you have ... The course of history shows that as a government grows, liberty decreases. -- Thomas Jefferson 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]
Re: Tomcat Benchmarking / Load Testing
Hello Sandy, Great thanks for sharing this piece of information. I am pretty confident that this would definitely assist me in my work. However, I just wonder what tool did you use to create this statistics which is simply awsome! Happy Hacking, Gaurav Vaish http://gallery.mastergaurav.net --- On Tue, 31 Aug 2004 11:19:26 -0400, Sandy McArthur [EMAIL PROTECTED] wrote: We, University of Florida, use Tomcat 5 for our webapps when we can. (We also use WebSphere and WebLogic when needed.) Our largest use of Tomcat is with our webmail cluster. You can find some stats for that at: http://webstats.ufl.edu/webmail.ufl.edu/ (Note: that the monthly reports are behind because of problems with analog on AIX.) Yesterday during peak usage we were handling 55 request per second: http://webstats.ufl.edu/webmail.ufl.edu/daily-2004-08-30.html#hoursum Our setup is 3 machines running Apache HTTPD with mod_jk load balancing to 4 machines running Tomcat 5. While all of those machines are beefy quad CPU boxes with between 2 to 8 gig of ram none of them are single purpose machines. Our Apache HTTPD machines serve over a hundred virtual hosts, so there are a lot of other factors which makes it hard for me to assert any performance numbers of our tomcat setup. I can say our last problems with our webmail setup stemmed from running out of simultaneous connections in apache httpd when all the students returned this past fall. The 4 boxes running tomcat is overpowered to handle any surge in usage and I haven't seen their CPU load cross 33%. On Aug 31, 2004, at 9:39 AM, Gaurav Vaish wrote: Can you please name a few? On Tue, 31 Aug 2004 08:11:50 -0500, Peter Lin [EMAIL PROTECTED] wrote: there's plenty of big sites using tomcat. They just don't say it. I know several sites getting millions of page views a day using tomcat just fine. -- Sandy McArthur Government big enough to supply everything you need is big enough to take everything you have ... The course of history shows that as a government grows, liberty decreases. -- Thomas Jefferson - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Benchmarking / Load Testing
Gaurav Vaish wrote: Hi, I am looking for some good case-study on Tomcat loadtest and benchmarking. It may or may not be with mod_jk(2) however a study with the following paramters would be useful: - JDK Version - Tomcat version - OS (with version and SPs) - Apache Version (if not standalone) - Concurrent Users (Threads) - Response Time The problem is that we have a e-Learning application running on Tomcat 4.x (planning to migrate to 5.x) which faced severe problems when put on production server. Stress testing in labs were passed gracefully, however it gives several issues with around 500 concurrent users on the production server. In anycase, which would be more scalable (load) - standalone Tomcat or with Apache/mod_jk? The details of the production server are: - Red Hat Enterprise Server 9.0 - Kernel 2.4.9 - JDK 1.4.2 (Sun JDK) - Tomcat 4.0 (Standalone) - 2048MB RAM - 4-Processor CPU (2GHz each), Intel 386 Tomcat 5.0 is faster than 4.1 which is faster than 4.0, but we don't have any numbers to give you. Feel free to contribute results. Rémy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Benchmarking / Load Testing
Hi Rémy, Thanks for your response. In anycase, is there a list of people / companies using Tomcat (standalone or with Apache)? Happy Hacking, Gaurav Vaish http://gallery.mastergaurav.net -- On Mon, 30 Aug 2004 23:51:22 +0200, Remy Maucherat [EMAIL PROTECTED] wrote: Gaurav Vaish wrote: Hi, I am looking for some good case-study on Tomcat loadtest and benchmarking. It may or may not be with mod_jk(2) however a study with the following paramters would be useful: - JDK Version - Tomcat version - OS (with version and SPs) - Apache Version (if not standalone) - Concurrent Users (Threads) - Response Time The problem is that we have a e-Learning application running on Tomcat 4.x (planning to migrate to 5.x) which faced severe problems when put on production server. Stress testing in labs were passed gracefully, however it gives several issues with around 500 concurrent users on the production server. In anycase, which would be more scalable (load) - standalone Tomcat or with Apache/mod_jk? The details of the production server are: - Red Hat Enterprise Server 9.0 - Kernel 2.4.9 - JDK 1.4.2 (Sun JDK) - Tomcat 4.0 (Standalone) - 2048MB RAM - 4-Processor CPU (2GHz each), Intel 386 Tomcat 5.0 is faster than 4.1 which is faster than 4.0, but we don't have any numbers to give you. Feel free to contribute results. Rémy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
