Just another Benchmark
Hi, we tried the apachebench on our solaris system, to check out differences between architectures and thereby we found a quite interesting behaviour. When serving a static page, apache uses the whole machine resources while tomcat isn't (CPU usage 100% to 20%) and for maybe this reason isn't serving at the same speed as apache. Is there a limit somewhere in the java net or in tomcat? We used apachebench with 'ab -c 10 -n 5 Config: apache with mod_jk, and ajp13 to tomcat. Solaris 8 regards, tom --- Apache 1.3.14 serving static page --- This is ApacheBench, Version 1.3c $Revision: 1.38 $ apache-1.3 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-1999 The Apache Group, http://www.apache.org/ Server Software:Apache/1.3.14 Server Hostname:solaris.lgsoft.at Server Port:80 Document Path: /start.html Document Length:2669 bytes Concurrency Level: 10 Time taken for tests: 98.686 seconds Complete requests: 5 Failed requests:0 Total transferred: 146255850 bytes HTML transferred: 133455338 bytes Requests per second:506.66 Transfer rate: 1482.03 kb/s received Connnection Times (ms) min avg max Connect:0 043 Processing: 119 1289 Total: 119 1332 --- Tomcat 3.2.1 serving static page --- This is ApacheBench, Version 1.3c $Revision: 1.38 $ apache-1.3 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-1999 The Apache Group, http://www.apache.org/ Server Software:Apache/1.3.14 Server Hostname:solaris.lgsoft.at Server Port:80 Document Path: /pltest/start.html Document Length:2669 bytes Concurrency Level: 10 Time taken for tests: 509.877 seconds Complete requests: 5 Failed requests:0 Total transferred: 14360 bytes HTML transferred: 13345 bytes Requests per second:98.06 Transfer rate: 281.64 kb/s received Connnection Times (ms) min avg max Connect:0 0 299 Processing:94 101 128 Total: 94 101 427 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
RE: Just another Benchmark
apache will also be faster for serving static pages, thats what apache is good at. Tomcat CPU will depend on the task its doing and whats spare CPU is avaliable. I dont think there is a limit in java or tomcat -Original Message- From: Thomas Bezdicek [mailto:[EMAIL PROTECTED]] Sent: 02 March 2001 09:50 To: [EMAIL PROTECTED] Subject: Just another Benchmark Hi, we tried the apachebench on our solaris system, to check out differences between architectures and thereby we found a quite interesting behaviour. When serving a static page, apache uses the whole machine resources while tomcat isn't (CPU usage 100% to 20%) and for maybe this reason isn't serving at the same speed as apache. Is there a limit somewhere in the java net or in tomcat? We used apachebench with 'ab -c 10 -n 5 Config: apache with mod_jk, and ajp13 to tomcat. Solaris 8 regards, tom --- Apache 1.3.14 serving static page --- This is ApacheBench, Version 1.3c $Revision: 1.38 $ apache-1.3 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-1999 The Apache Group, http://www.apache.org/ Server Software:Apache/1.3.14 Server Hostname:solaris.lgsoft.at Server Port:80 Document Path: /start.html Document Length:2669 bytes Concurrency Level: 10 Time taken for tests: 98.686 seconds Complete requests: 5 Failed requests:0 Total transferred: 146255850 bytes HTML transferred: 133455338 bytes Requests per second:506.66 Transfer rate: 1482.03 kb/s received Connnection Times (ms) min avg max Connect:0 043 Processing: 119 1289 Total: 119 1332 --- Tomcat 3.2.1 serving static page --- This is ApacheBench, Version 1.3c $Revision: 1.38 $ apache-1.3 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-1999 The Apache Group, http://www.apache.org/ Server Software:Apache/1.3.14 Server Hostname:solaris.lgsoft.at Server Port:80 Document Path: /pltest/start.html Document Length:2669 bytes Concurrency Level: 10 Time taken for tests: 509.877 seconds Complete requests: 5 Failed requests:0 Total transferred: 14360 bytes HTML transferred: 13345 bytes Requests per second:98.06 Transfer rate: 281.64 kb/s received Connnection Times (ms) min avg max Connect:0 0 299 Processing:94 101 128 Total: 94 101 427 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
Re: Just another Benchmark
Well, there is a possible explanation :-) The static interceptor ( which serves static files ) was never tuned or optimized. It probably does multiple accesses to disk, while in Apache there are a number of low-level optimizations, caching, etc. I am not very interested in spending time tuning the StaticInterceptor - I would rather spend the same time making sure setting up Tomcat + Apache is as easy as possible, and just let Apache do what it's designed to ( serve static files ) and tomcat do it's job ( servlets + jsp ) :-) For "real" production servers I hope you'll use Apache, and for embeding tomcat in apps or development you don't need 500 requests per seconde. Feel welcome to contribute any code that would improve the performance, or use apache for static files :-) Costin Hi, we tried the apachebench on our solaris system, to check out differences between architectures and thereby we found a quite interesting behaviour. When serving a static page, apache uses the whole machine resources while tomcat isn't (CPU usage 100% to 20%) and for maybe this reason isn't serving at the same speed as apache. Is there a limit somewhere in the java net or in tomcat? We used apachebench with 'ab -c 10 -n 5 Config: apache with mod_jk, and ajp13 to tomcat. Solaris 8 regards, tom --- Apache 1.3.14 serving static page --- This is ApacheBench, Version 1.3c $Revision: 1.38 $ apache-1.3 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-1999 The Apache Group, http://www.apache.org/ Server Software:Apache/1.3.14 Server Hostname:solaris.lgsoft.at Server Port:80 Document Path: /start.html Document Length:2669 bytes Concurrency Level: 10 Time taken for tests: 98.686 seconds Complete requests: 5 Failed requests:0 Total transferred: 146255850 bytes HTML transferred: 133455338 bytes Requests per second:506.66 Transfer rate: 1482.03 kb/s received Connnection Times (ms) min avg max Connect:0 043 Processing: 119 1289 Total: 119 1332 --- Tomcat 3.2.1 serving static page --- This is ApacheBench, Version 1.3c $Revision: 1.38 $ apache-1.3 Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright (c) 1998-1999 The Apache Group, http://www.apache.org/ Server Software:Apache/1.3.14 Server Hostname:solaris.lgsoft.at Server Port:80 Document Path: /pltest/start.html Document Length:2669 bytes Concurrency Level: 10 Time taken for tests: 509.877 seconds Complete requests: 5 Failed requests:0 Total transferred: 14360 bytes HTML transferred: 13345 bytes Requests per second:98.06 Transfer rate: 281.64 kb/s received Connnection Times (ms) min avg max Connect:0 0 299 Processing:94 101 128 Total: 94 101 427 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
RE: Just another Benchmark
Hi, See below. Roy snip -Original Message- From: Thomas Bezdicek [mailto:[EMAIL PROTECTED]] Sent: 02 March 2001 09:50 To: [EMAIL PROTECTED] Subject: Just another Benchmark Hi, we tried the apachebench on our solaris system, to check out differences between architectures and thereby we found a quite interesting behaviour. When serving a static page, apache uses the whole machine resources while tomcat isn't (CPU usage 100% to 20%) and for maybe this reason isn't serving at the same speed as apache. Is there a limit somewhere in the java net or in tomcat? Just curious: you say "CPU usage 100%". I guess what I'm asking is whether you assume that Apache keeps the CPU busy 100% of the time based on the ratio of the throughputs (requests per second) or whether you measured CPU busy using sar (or something like it). FWIW, in measurements of Apache I've done, I've rarely seen CPU utilization above about 75%. Roy - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
Re: Just another Benchmark
on 3/2/01 11:58 PM, "[EMAIL PROTECTED]" [EMAIL PROTECTED] wrote: For "real" production servers I hope you'll use Apache, and for embeding tomcat in apps or development you don't need 500 requests per seconde. What if we need 500 requests per second for non-static files? :-) -jon - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
Re: Just another Benchmark
on 3/2/01 11:58 PM, "[EMAIL PROTECTED]" [EMAIL PROTECTED] wrote: For "real" production servers I hope you'll use Apache, and for embeding tomcat in apps or development you don't need 500 requests per seconde. What if we need 500 requests per second for non-static files? :-) You got them already - tomcat overhead for serving servlets is comparable with apache overhead for serving static pages. Everything else is up to the servlet implementation. ( actually, tomcat overhead is smaller than Apache 1.3, but Apache 2.0 is faster ) Costin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
Re: Just another Benchmark
on 3/3/01 6:55 AM, "[EMAIL PROTECTED]" [EMAIL PROTECTED] wrote: on 3/2/01 11:58 PM, "[EMAIL PROTECTED]" [EMAIL PROTECTED] wrote: For "real" production servers I hope you'll use Apache, and for embeding tomcat in apps or development you don't need 500 requests per seconde. What if we need 500 requests per second for non-static files? :-) You got them already - tomcat overhead for serving servlets is comparable with apache overhead for serving static pages. Everything else is up to the servlet implementation. ( actually, tomcat overhead is smaller than Apache 1.3, but Apache 2.0 is faster ) Costin what platform/os? i believe your previous claims have been on NT, is this also for unix now as well? -jon -- If you come from a Perl or PHP background, JSP is a way to take your pain to new levels. --Anonymous http://jakarta.apache.org/velocity/ http://java.apache.org/turbine/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
Re: Just another Benchmark
what platform/os? i believe your previous claims have been on NT, is this also for unix now as well? I've never tried on NT - and it would be pretty difficult anyway ( to get NT on my computer :-) I'm using Linux/JDK1.3. Again, I'm talking about overhead - i.e. the time spent in tomcat ( if the servlet is doing anything - well, that's servlet performance, not something related with the container). Costin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
