Hi, I am experiencing big issues with Matlab startup. First Matlab(2009b) startup (right after booting) is very slow. total item gap description ===================================== 0.00 0.00 0.00 MATLAB script 3.64 3.64 0.00 main 3.83 0.08 0.12 LM Startup 3.85 0.00 0.01 splash 4.03 0.00 0.18 mnSigInit 15.94 405.92 0.00 mljInit 26.78 10.83 0.00 StartDesktop 26.78 400.75 0.00 Java initialization 26.83 0.06 0.00 hgInitialize 27.88 0.85 0.20 psParser 28.33 0.24 0.22 cachepath 30.11 1.13 0.65 matlabpath 33.71 5.38 0.00 matlabrc ===================================== Items shown account for 97.8% of total startup time [TIMER: 3 MHz] version -java ans = Java 1.6.0_12-b04 with Sun Microsystems Inc. Java HotSpot(TM) Client VM mixed mode. If I close and restart Matlab, then startup is much faster (mljInit takes 6.01 seconds) It seems that there are something wrong with my java. I tried to update java, but nothing works. I also tried methods on "http://www.mathworks.cn/support/solutions/en/data/1-2Z18MA/index.html" , but nothing works. any ideas?

Matlab start up very slow

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jidg 2011-8-31

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https://ww2.mathworks.cn/matlabcentral/answers/14868-matlab-start-up-very-slow

评论： Kristjan Jonasson 2013-12-5

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Hi, I am experiencing big issues with Matlab startup. First Matlab(2009b) startup (right after booting) is very slow.

total item gap description

=====================================

00   0.00    0.00   MATLAB script       
64   3.64    0.00   main                
83   0.08    0.12   LM Startup          
85   0.00    0.01   splash              
03   0.00    0.18   mnSigInit           
94  405.92    0.00     mljInit           
78  10.83    0.00     StartDesktop      
78  400.75    0.00   Java initialization 
83   0.06    0.00   hgInitialize        
88   0.85    0.20   psParser            
33   0.24    0.22   cachepath           
11   1.13    0.65     matlabpath        
71   5.38    0.00   matlabrc            
=====================================
Items shown account for 97.8% of total startup time [TIMER: 3 MHz]
 version -java

ans =

Java 1.6.0_12-b04 with Sun Microsystems Inc. Java HotSpot™ Client VM mixed mode.

If I close and restart Matlab, then startup is much faster (mljInit takes 6.01 seconds)

It seems that there are something wrong with my java. I tried to update java, but nothing works.

I also tried methods on "http://www.mathworks.cn/support/solutions/en/data/1-2Z18MA/index.html" , but nothing works.

any ideas?

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legendbb 2013-11-16

编辑：legendbb 2013-11-16

Kevin's tip works for my R2013b; I don't know why and how my R2013b booting changed from 2sec to 10sec. I definitely didn't change any system preferences.

But disabling "Automatically detect settings" absolutely helped.

Found a little trace on this issue, it's definitely has something to do with VPN software I have used (CyberGhost).

Thanks for sharing

Kristjan Jonasson 2013-12-5

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I experienced the same. In fact I did some timings (with a watch), with "Automatically detect settings":

         enabled  disabled
  2012a   11 s       4 s
  2012b   10 s       6 s
  2013a    7 s       4 s
  2013b    9 s       5 s

(these are average of 2 or 3 starts, on a new laptop with an SSD drive and I7 processor)

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