Brian, can you guys set up a web site with your results and configuration files. I would ask for you to post them but that is a lot for a mail list to handle. --Angus > -----Original Message----- > From: Adam Hardy [mailto:[EMAIL PROTECTED] > Sent: Tuesday, April 20, 2004 3:29 AM > To: Tomcat Users List > Subject: Re: Configuration and performance questions > > > 1. Yes of course. 4.1.30 is many release cycles ahead of 5.0.19. But > that's a matter of course with all software. > > 2. Don't know. > > 3. I thought 'enterprise' was a marketing word ;) > > 4. Are you sure you've got apache configured correctly? I don't think > there should be such a noticeable difference. > > Adam > > On 04/20/2004 03:07 AM Brian C. Dilley wrote: > > We are evaluating tomcat as a replacement for JRun. We > are hoping > > that we can get some real world experiences in order to support our > > assumptions. We have the following questions and concerns regarding > > tomcat. > > > > > > 1. We are currently looking at version 5.0.19. Is there a > > performance\stability trade off compared to version 4.1.30? > > > > 2. What are the advantages or disadvantages of the > different mod_jk2 > > worker types (ie: channelSocket, unixSocket, jni)? And are > there any > > other connectors that we may want to evaluate. > > > > 3. Is there any documentation, or can anyone attest to the > > performance\stability of tomcat in an enterprise environment. > > > > 4. We have tested apache 2.0.49 using mod_jk2 (channel socket using > > AJP13) version 2.0.4 and tomcat 5.0.19 and found that it has some > > concurrency issues. Here are our findings, we are using > siege for load > > testing: > > > > Config: Tomcat 5.0 / java 1.4.1 > > Concurrent: 100 > > Time: 5M > > Transactions: 3712 hits > > Availability: 100.00 % > > Elapsed time: 310.18 secs > > Data transferred: 171245696 bytes > > Response time: 7.80 secs > > Transaction rate: 11.97 trans/sec > > Throughput: 552084.94 bytes/sec > > Concurrency: 93.37 > > Successful transactions: 3712 > > Failed transactions: 0 > > > > Test Run 2 > > Config: Apache 2.0.49 / Tomcat 5.0 / mod_j2k / java 1.4.1 > > Concurrent: 100 > > Time: 5M > > Transactions: 750 hits > > Availability: 99.87 % > > Elapsed time: 1078.13 secs > > Data transferred: 6124581 bytes > > Response time: 27.71 secs > > Transaction rate: 0.70 trans/sec > > Throughput: 5680.74 bytes/sec > > Concurrency: 19.27 > > Successful transactions: 747 > > Failed transactions: 4 > > > > Test Run 3 > > Config: Apache 1.3.27 / JRUN 3.0.2.1114 / mod_jrun / java 1.4.1 > > Concurrent: 100 > > Time: 5M > > Transactions: 3791 hits > > Availability: 100.00 % > > Elapsed time: 314.09 secs > > Data transferred: 62513590 bytes > > Response time: 7.34 secs > > Transaction rate: 12.07 trans/sec > > Throughput: 199030.83 bytes/sec > > Concurrency: 88.62 > > Successful transactions: 3791 > > Failed transactions: 0 > > > > Test Run 4 > > Config: Tomcat 5.0 / java 1.4.2_04 > > Transactions: 5176 hits > > Availability: 100.00 % > > Elapsed time: 304.94 secs > > Data transferred: 238784408 bytes > > Response time: 5.64 secs > > Transaction rate: 16.97 trans/sec > > Throughput: 783053.75 bytes/sec > > Concurrency: 95.75 > > Successful transactions: 5176 > > Failed transactions: 0 > > > > Test 5 > > Config: Apache 2.0.49 / Tomcat 5.0 / mod_j2k / java 1.4.2_04 > > Transactions: 701 hits > > Availability: 99.72 % > > Elapsed time: 659.95 secs > > Data transferred: 5580926 bytes > > Response time: 31.29 secs > > Transaction rate: 1.06 trans/sec > > Throughput: 8456.59 bytes/sec > > Concurrency: 33.24 > > Successful transactions: 679 > > Failed transactions: 24 > > > > > > Test Run 6 > > Config: Apache 1.3.27 / JRUN 3.0.2.1114 / mod_jrun / java 1.4.2_04 > > Transactions: 3868 hits > > Availability: 100.00 % > > Elapsed time: 308.78 secs > > Data transferred: 63783320 bytes > > Response time: 7.16 secs > > Transaction rate: 12.53 trans/sec > > Throughput: 206565.58 bytes/sec > > Concurrency: 89.68 > > Successful transactions: 3868 > > Failed transactions: 0 > > > > > > > > > > > > > -- > struts 1.2 + tomcat 5.0.19 + java 1.4.2 > Linux 2.4.20 Debian > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
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