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Top Forums Web Development Suggested tool / approach for performance testing Post 302246007 by figaro on Sunday 12th of October 2008 08:46:00 AM
Old 10-12-2008
Suggested tool / approach for performance testing

What is a good approach for a performance testing tool suite for web applications? I am specifically interested in tools that execute a certain set of tasks well as opposed to tuning high traffic sites. In other words, a profiler would be a good idea to have, although I understand these tools are specific to a language. A profiler will help me understand where most time is spent in executing a particular part of the code, but does not provide me with a start-to-end view of where performance could be improved. Is there a tool that provides profiling data on where in the chain browser, web server, application server, database server most time is spent?

Thanks in advance
 

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LM-PROFILER.CONF(8)					      System Manager's Manual					       LM-PROFILER.CONF(8)

NAME
/etc/laptop-mode/lm-profiler.conf - Configuration file for lm-profiler, a profiler for laptop-mode-tools. DESCRIPTION
This manual page documents the options that can be set in the /etc/laptop-mode/lm-profiler.conf configuration file. For a description of what lm-profiler does, see the lm-profiler(8) manpage. SETTINGS
The syntax of options is OPTION=value. The following settings are available in lm-profiler.conf: VERBOSE_OUTPUT Set this to 1 if you want to see a lot of output when you run lm-profiler, and 0 if you don't want this. Useful for debugging purposes. (Currently does nothing.) PROFILE_RUN_LENGTH The length of a profiling run, in seconds. This should be a while, so that lm-profiler can gather enough information. The default is 10 minutes (600 seconds). ACTIVITY_INTERVAL_MIN ACTIVITY_INTERVAL_MAX The behaviour that you want to avoid when you have your hard drive spun down, is disk accesses that are spread out over time, because your hard drive will have to spin up for each access. lm-profiler detects when applications perform disk accesses that are at least some time apart (otherwise they can be considered part of the same access) but not TOO far apart (otherwise they are no problem). These settings configure what lm-profiler considers "at least some time apart" and "too far apart", respectively, in seconds. RECOMMEND_DEFAULT_SERVICES DEFAULT_SERVICES If RECOMMEND_DEFAULT_SERVICES is set to 1 (enabled), then lm-profiler will always suggest turning off the services listed in DEFAULT_SERVICES (separated by spaces). IGNORE_PROGRAMS Programs listed in this option, separated by spaces, will be ignored for disk activity profiling. The default settings (which can be referenced as $DEF_IGNORE_PROGRAMS) include common utility programs and all programs used by lm-profiler itself. RECOMMEND_NETWORK_SERVICES When this option is enabled (value 1), lm-profiler will detect any services that are listening on network ports, and it will sug- gest that you disable them. IGNORE_NETWORK_SERVICES Services listed in this configuration option (separated by spaces) are not suggested as a network service by lm-profiler. The default values can be accessed as $DEF_IGNORE_NETWORK_SERVICES. SEE ALSO
lm-profiler(8). laptop_mode(8). laptop-mode.conf(8). AUTHOR
This manual page was written by Bart Samwel (bart@samwel.tk). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation. LM-PROFILER.CONF(8)
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