Firefox/Projects/StartupPerformance/MeasuringStartup: Difference between revisions

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Added section on Windows setup.
(Created page with 'We've been using a method Vlad blogged about [http://blog.vlad1.com/2009/07/28/measuring-startup/ here]. The steps are below. # save [http://people.mozilla.com/~vladimir/misc/st…')
 
(Added section on Windows setup.)
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We've been using a method Vlad blogged about [http://blog.vlad1.com/2009/07/28/measuring-startup/ here]. The steps are below.
The following method is based on a [http://blog.vlad1.com/2009/07/28/measuring-startup/ blog post] byVlad. The steps are below.  


# save [http://people.mozilla.com/~vladimir/misc/startup.html this html file] somewhere locally
#save [http://people.mozilla.com/~vladimir/misc/startup.html this html file] somewhere locally  
# create a new profile, run Firefox with it at least once, so all files are created, etc
#create a new profile, run Firefox with it at least once, so all files are created, etc  
# execute this command, with your profile name substituted, and invoking firefox in a way appropriate for your platform:
#execute this command, with your profile name substituted, and invoking firefox in a way appropriate for your platform:


<code>
<code>./firefox -P YourProfileName -no-remote file:///..../startup.html#`python -c 'import time; print int(time.time() * 1000);'` </code><code></code>
./firefox -P YourProfileName -no-remote file:///..../startup.html#`python -c 'import time; print int(time.time() * 1000);'`
</code>


==Cold startup on Mac==
== Setup on Windows  ==
The following is specific to Mac OSX and is required to evict Firefox code pages from memory and clear the Unified Buffer Cache (UBC). <code>purge</code> does NOT do this.


<pre>
To run these tests on Windows, you can follow these steps (after step 1 and 2 above):<br>
#!/bin/sh
 
#Download and install [http://python.org/download/ Python].<br>
#Download and install [http://cygwin.com/ Cygwin]. The default settings should be sufficient.<br>
#Add python.exe or its containing folder to the PATH (or use the full path to the executable in the command below).<br>
#In the Cygwin console, run the following command:<br>
<pre>/cygdrive/c/.../firefox.exe -P YourProfileName -no-remote file:///C:/.../startup.html#`python.exe -c 'import t
ime; import sys; sys.stdout.write(str(int(time.time() * 1000)));'`
</pre>
Startup times using this method will be a little bloated due to the overhead introduced by the Cygwin console, but should still be reliable if compared with each other.<br>
 
== Cold startup on Mac  ==
 
The following is specific to Mac OSX and is required to evict Firefox code pages from memory and clear the Unified Buffer Cache (UBC). <code>purge</code> does NOT do this.
<pre>#!/bin/sh


FF=/Volumes/Fujitsu80Gb
FF=/Volumes/Fujitsu80Gb
Line 21: Line 31:


$FF/Minefield$*.app/Contents/MacOS/firefox-bin -no-remote -foreground -P clean file://$FF/startup.html#`python -c 'import time; print int(time.time() * 1000);'`
$FF/Minefield$*.app/Contents/MacOS/firefox-bin -no-remote -foreground -P clean file://$FF/startup.html#`python -c 'import time; print int(time.time() * 1000);'`
</pre>
</pre>  
 
This assumes that your removable media is at /dev/disk1s2.
This assumes that your removable media is at /dev/disk1s2.
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