I have written a command-line probe in java to communicate with a service since java was the language I was most comfortable with. However, it was slow in performance. This is probably due to the fact that java is a Just-in-time language and every time the probe runs, the JVM needs to interpret/compile the byte code in order to run. The performance of this was much slower, i.e in the 1/10th second range (x00 ms). This is okay for maybe a few probes, but I am monitoring 40+ devices, at 30 seconds poll intervals, and the machine becomes noticeably slower with a noticeable increase in constant CPU utilization. I suspect groovy will also suffer from the same problem due to it is a language that runs on top of the JVM.
I have since re-wrote the probe using TCP probe, and it was noticeably faster, i.e. in 1/100th seconds range, and no noticeable increase in CPU utilization. I have also venture into python command line probes, and it is actually quite fast as well. I am not familiar with python's architecture, but does python actually "cache" the interpreted/compiled script? This python script is for something else, but it is also perform in the 1/100th seconds range. Cheers, Leonard Siu Quantum Data Systems (H.K.) Ltd http://www.quantum.com.hk -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Richard Brown Sent: August-12-11 9:24 AM To: InterMapper Discussion Subject: Re: [IM-Talk] Re: Support for writing probes in groovy or other JSR223 langs? > I ended up using a JMX-JSON bridge and python scripts to do this instead, but > having pure JMX support in intermapper would be good too. This is intriguing. Is there anything you'd be able to share (the probes, an outline of what tools you used, etc)? Thanks. Rich Brown [email protected] Dartware, LLC http://www.intermapper.com 66-7 Benning Street Telephone: 603-643-9600 West Lebanon, NH 03784-3407 Fax: 603-643-2289.+-j·!Š÷¬†Ûiÿü0Âf¢•ªÜ†+Þr‰¿Š{^®f©¥êíjY8ÒX¬µÖ«·«yÊ&ý:.žË›±Êâmë צj)m ‰íz³¦—«M©d¡÷åŠË]j»pj·œ
