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List:       kde-core-devel
Subject:    Re: Measuring startup latency
From:       Dawit Alemayehu <adawit () kde ! org>
Date:       2000-07-19 14:43:07
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On Wed, 19 Jul 2000, Geert Jansen wrote:
> Hi,
>
> just wrote a little utility called kstartperf. It measures an app's startup
> latency accurately within a few milliseconds.
>
> From the README:
>
> ** How does it work?
>
> 1. KStartPerf sets an environment variable (KSTARTPERF) to the current
> time. 2. KStartPerf executes the requested comand command with an
> LD_PRELOAD library which overrides XMapWindow.
> 3. As soon as the app calls XMapWindow (this is the point where we assume
>    that the app has "started up"), the overrided function gets called which
>    calculated the time difference between the current time and the time
>    stored in the KSTARTPERF environment variable. This value is printed to
>    standard error.
> 4. The overridden XMapWindow calls the original XMapWindow and everything
>    else continues normally.
>
> Anyone interested?

I think this is at the least a helpful tool.  Why not put it in kdenonbeta ??

Regards,
Dawit A.

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