Hi again, As a developer I would start to work with tools like vtune (in case of c/c++). The open sourced tool that I know is "valgrind" but Vtune is my my first choice. VTune is Intel tool that use special Intel hardware features that helps you do just that. If you suspect that you suffer from IO problem I would choose to run "Statistical profiling" and see where your process spend the time. You can find additional information in: http://en.wikipedia.org/wiki/Performance_analysis
Hope that helps, Yaron Kahanovitch ----- Original Message ----- From: "Maxim Veksler" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: "Linux-IL," <linux-il@linux.org.il> Sent: Friday, April 6, 2007 1:44:56 AM (GMT+0200) Auto-Detected Subject: Re: Performance monitoring for selected process On 4/5/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Hi, > > From your mail I cannot understand the context of your problem. > Are you looking for profiling tools to improve programs developed by you or a > user that wants to understand why a process is slow? > Both. The application in question is developed in-house. Aside from profiling each module I would like to know why the service "chocks" after calling it for X concurrent sessions. I'm looking for a tool that could show, in real time, why the service is busy: is it cpu / io or memory (causing kernel to swap) intensive. I would have used the term "bottle neck" to describe what I'm looking to solve, it's just that it's possible that it's not a "bottle neck" but a simple bug. Thank you for helping, Maxim. > Best regards, > > Yaron Kahanovitch > > ----- Original Message ----- > From: "Maxim Veksler" <[EMAIL PROTECTED]> > To: "Linux-IL," <linux-il@linux.org.il> > Sent: 18:59:17 (GMT+0200) Asia/Jerusalem יום רביעי 4 אפריל 2007 > Subject: Performance monitoring for selected process > > Hi, > > Except from "stracing -f" executables is there some way I can monitor > the process for performance? I would like to debug process delayed > response activity and need to know when it's doing heavy IO / when > it's CPU intensive and when it's all too busy waiting for IRQ. > > A graphical display would be preferred, textual will do as well obviously. > > For general system statistics, I've tried the following : > 1. sysstat + kSar > 2. gnome-system-monitor > 3. ksysguard > 4. ntop > > All work great but are too general for my needs, I'm looking for tools > that could display single process statistics. > > > Thanks, > Maxim. > > -- > Cheers, > Maxim Veksler > > "Free as in Freedom" - Do u GNU ? > > -- Cheers, Maxim Veksler "Free as in Freedom" - Do u GNU ? ================================================================To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
