Re: Performance monitoring
CHESS-CODE:s04hchmi42m2t3k3s41ktl27o8s9c9pa8b9c0c8cpt8dge8v2voo0 - Original Message - From: Tony Tomcat [EMAIL PROTECTED] To: Peter Lin [EMAIL PROTECTED] Cc: Tomcat Users List tomcat-user@jakarta.apache.org Sent: Tuesday, April 05, 2005 8:48 PM Subject: Re: Performance monitoring yeah. I was looking at the status servlet but I wanted a little more control of the output which is when I started digging through the code and found that it was using MBeanServer. I didn't know there was an XML output option so I'll look into that. Thanks for the Jmeter pointer too. I have been using jmeter for stress testing but I have never tried setting up a monitor. On Apr 5, 2005 2:23 PM, Peter Lin [EMAIL PROTECTED] wrote: there's this little thing called the status servlet. It displays information in HTML format for each webapp. it can also show a subset of the full stats in XML. there's this other project in jakarta called JMeter. It has a monitor for tomcat5.0.19 and newer that can monitor one or more Tomcat instances. so if you don't count the status servlet and tomcat, nothing exists :) peter On Apr 5, 2005 2:20 PM, Tony Tomcat [EMAIL PROTECTED] wrote: I started writing a Filter for my tomcat to monitor performance but then I started wondering.. Is there a solution already out there that I can use? Can I pull data from Tomcat's MBeanServer? What I would like to know is how long my servlets are taking to run. I need the Min, Max and Average times. I then would build a servlet to output the data in XML or HTML format. I also would want the data over the past hour and past 24 hours. Thanks in advance for any pointers or suggestions! Tony - 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]
Performance monitoring
I started writing a Filter for my tomcat to monitor performance but then I started wondering.. Is there a solution already out there that I can use? Can I pull data from Tomcat's MBeanServer? What I would like to know is how long my servlets are taking to run. I need the Min, Max and Average times. I then would build a servlet to output the data in XML or HTML format. I also would want the data over the past hour and past 24 hours. Thanks in advance for any pointers or suggestions! Tony - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Performance monitoring
there's this little thing called the status servlet. It displays information in HTML format for each webapp. it can also show a subset of the full stats in XML. there's this other project in jakarta called JMeter. It has a monitor for tomcat5.0.19 and newer that can monitor one or more Tomcat instances. so if you don't count the status servlet and tomcat, nothing exists :) peter On Apr 5, 2005 2:20 PM, Tony Tomcat [EMAIL PROTECTED] wrote: I started writing a Filter for my tomcat to monitor performance but then I started wondering.. Is there a solution already out there that I can use? Can I pull data from Tomcat's MBeanServer? What I would like to know is how long my servlets are taking to run. I need the Min, Max and Average times. I then would build a servlet to output the data in XML or HTML format. I also would want the data over the past hour and past 24 hours. Thanks in advance for any pointers or suggestions! Tony - 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: Performance monitoring
http://mc4j.sourceforge.net/ScreenShots.html On Apr 5, 2005 2:20 PM, Tony Tomcat [EMAIL PROTECTED] wrote: I started writing a Filter for my tomcat to monitor performance but then I started wondering.. Is there a solution already out there that I can use? Can I pull data from Tomcat's MBeanServer? What I would like to know is how long my servlets are taking to run. I need the Min, Max and Average times. I then would build a servlet to output the data in XML or HTML format. I also would want the data over the past hour and past 24 hours. Thanks in advance for any pointers or suggestions! Tony - 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: Performance monitoring
yeah. I was looking at the status servlet but I wanted a little more control of the output which is when I started digging through the code and found that it was using MBeanServer. I didn't know there was an XML output option so I'll look into that. Thanks for the Jmeter pointer too. I have been using jmeter for stress testing but I have never tried setting up a monitor. On Apr 5, 2005 2:23 PM, Peter Lin [EMAIL PROTECTED] wrote: there's this little thing called the status servlet. It displays information in HTML format for each webapp. it can also show a subset of the full stats in XML. there's this other project in jakarta called JMeter. It has a monitor for tomcat5.0.19 and newer that can monitor one or more Tomcat instances. so if you don't count the status servlet and tomcat, nothing exists :) peter On Apr 5, 2005 2:20 PM, Tony Tomcat [EMAIL PROTECTED] wrote: I started writing a Filter for my tomcat to monitor performance but then I started wondering.. Is there a solution already out there that I can use? Can I pull data from Tomcat's MBeanServer? What I would like to know is how long my servlets are taking to run. I need the Min, Max and Average times. I then would build a servlet to output the data in XML or HTML format. I also would want the data over the past hour and past 24 hours. Thanks in advance for any pointers or suggestions! Tony - 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: Performance monitoring
What all of these are missing are things like: * Overall per web app (not per-connector thread) max and avg request time, request concurrency, etc. * Overall per web app max and average session concurrency, etc. * Percentage of overall CPU time spent in servlet requests, etc Somewhere one does cross the hazy Heisenberg uncertainty principal line, i.e. noticeably impacting performance by trying to hard to measure performance... -- Jess Holle e wrote: http://mc4j.sourceforge.net/ScreenShots.html On Apr 5, 2005 2:20 PM, Tony Tomcat [EMAIL PROTECTED] wrote: I started writing a Filter for my tomcat to monitor performance but then I started wondering.. Is there a solution already out there that I can use? Can I pull data from Tomcat's MBeanServer? What I would like to know is how long my servlets are taking to run. I need the Min, Max and Average times. I then would build a servlet to output the data in XML or HTML format. I also would want the data over the past hour and past 24 hours. Thanks in advance for any pointers or suggestions! Tony - 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]
performance monitoring tools
Can anyone recommend any good (and possibly free) server performance monitoring software? I've been looking at products like OptimizeIt and JProbe and was wondering if there're any open source products around that would provide similar functionality. I'm trying to get a feel for where hot spots might exist in our application, i.e., how long methods calls or commands are taking, to tune our system. I've done some work with Tomcat's RequestInterceptors to get some numbers on time taken for servlets to do there service() methods, but I'm trying to get some finer grained metrics than I think the interceptors are capable of. To be specific, I've done some tests with Filip Hanik's PerformanceInterceptors (thanks Filip), which works great, but we have individual servlets that handle many different types of requests, each of which we want to analyze. Any suggestions would be greatly appreciated. tomcat rules! :) bill
