# matlab speed issues

**URL:** <https://psychtoolbox.discourse.group/t/matlab-speed-issues/1676>\
**Category:** Uncategorized\
**Created:** [June 17, 2004, 2:36pm UTC](https://psychtoolbox.discourse.group/t/matlab-speed-issues/1676 "2004-06-17T14:36:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![paradisolab](https://avatars.discourse-cdn.com/v4/letter/p/e95f7d/32.png) [@paradisolab](https://psychtoolbox.discourse.group/u/paradisolab)\
**Post date:** [June 17, 2004, 2:36pm UTC](https://psychtoolbox.discourse.group/t/matlab-speed-issues/1676/1 "2004-06-17T14:36:35Z")

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I'm going to perform a series of gaze contingent experiments using an  
ISCAN camera system. The system is hooked via a serial connection to a  
computer running Matlab and PsychToolbox, which will handle stimulus  
control and analysis of data. The experiments, however, are dependent  
on fast communication between the computers and speedy analysis, since  
saccades occur on the order of milliseconds. It seems that it takes  
Matlab around 20 milliseconds to even read data from the serial port  
(let alone the time it takes to execute any actual analysis), which is  
way too slow. Is there any way to speed this process up, or any  
recommendations you may have from your own experiences in the past?