The question "what optimizations gcc performed on different levels?" has been asked time and time again.
We can check this in this way,
$ gcc -c -Q -O3 --help=optimizers > 3.log
$ gcc -c -Q -O2 --help=optimizers > 2.log
$ diff -u 2.log 3.log
--- 2.log 2010-08-20 13:48:57.000000000 +0800
+++ 3.log 2010-08-20 13:48:51.000000000 +0800
@@ -37,7 +37,7 @@
-ffloat-store [disabled]
-fforward-propagate [enabled]
-fgcse [enabled]
- -fgcse-after-reload [disabled]
+ -fgcse-after-reload [enabled]
....
As the "clean room" policy proposed by my wife, I bought a USB wireless card for my machine, and cost me nearly 4 days to set it up under Ubuntu.
After a long time googling, this post helps me a lot...
http://forum.ubuntu.org.cn/viewtopic.php?f=116&t=218120&start=15
After followed steps in this post above, it still doesn't work. Then, I upgrade my ubuntu 9.04 o 9.10. Everything works well.
After fight with skype on Linux for one day, I can talk with someone else over skype.
Add source in /etc/apt/source.list
deb http://download.skype.com/linux/repos/debian/ stable non-free
sudo apt-get install skype
Then, I can log in and chat over skype however, the skype doesn't work well with mic. After a long time googling,
http://ubuntuforums.org/showthread.php?t=1416539
This fix the problem of voice.
http://www.faqs.org/patents/inv/155131
After googling, I found a simple way to use proxy, and twhirl works for me every well, except a little slow.
HTTP_PROXY=xxx.xxx HTTP_PORT=80 ~/twhirl/bin/twhirl
Automated Software Engineering Homepage http://www.ase-conferences.org/
International conference on Automated Software Engineering
http://soft.vub.ac.be/ase2010/program/workshops
International Symposium on Software Testing and Analysis http://selab.fbk.eu/issta2010/index.php
Internal conference on Software Engineering http://www.sbs.co.za/ICSE2010/
Workshop on Program Analysis for Software Tools and Engineering. http://cseweb.ucsd.edu/paste2010/program.html
Here is a process of port figures in Word to Latex easily,
1. Print Word document to pdf file
2. Convert PDF to PS. In Linux, pdf2ps can do that,
3. In tex file,
\begin{figure}
\includegraphics[trim = 0mm 110mm 0mm 60mm,width=3.5in,clip]{figure1.ps}
\caption{Implementation architecture}
\end{figure}
Then, the figure in Word is ported to latex.
It is simple and can be inserted in my latex paper easily.
I am excited to see that there are many Chinese authors in PLDI 2010, and one paper is from ICT. I am proud of them. I also find some paper is done by IBM research, proud of them also.
There are some paper interest to us,
Adversarial Memory For Detecting Destructive Races
Cormac Flanagan (University of California, Santa Cruz), Stephen N. Freund (Williams College)
Decoupled Lifeguards: Enabling Path Optimizations for Dynamic Correctness Checking Tools
Olatunji Ruwase (Carnegie Mellon University), Shimin Chen (Intel), Phillip Gibbons (Intel), Todd Mowry (Carnegie Mellon University)
Pacer: Proportional Detection of Data Races
Michael D. Bond (UT Austin), Katherine E. Coons (UT Austin), Kathryn S. McKinley (UT Austin)
You can see more paper in here
Thread "main" java/lang/IllegalAccessError at Lock$Sync.get（Lock.java:4294967295）
However, I still don't know what is wrong in my instrumented code. Then, I switch to Sun Jre,
Error occurred during initialization of VM
java.lang.IllegalAccessError: tried to access field IdImpl.ID from class Lock$Sync
at Lock$Sync.get(Lock.java)
This error message is very clear, and easy to understand. This error is cause by a copy/paste.
My script is like this,
<jar destfile="foo.jar" basedir="${dest.dir}" includes="Provider.class" update="true"/>
<move file="foo.jar" tofile="bar.jar"/>
In this snip, I want to update foo.jar with Provider.class, and rename it to bar.jar.
After some search, I fix this problem in this way...
<jar destfile="bar.jar">
<fileset dir="${dest.dir}" includes="Provider.class" />
<zipfileset src="foo.jar"/>
</jar>
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3004-303 There have been too many unsuccessful login attempts; please see the system administrator
After some googling, I found it is a question frequently asked question. Many other people can't remember password either, :)
Type the command below in shell as root,
root@aix:/ # /usr/sbin/lsuser -a unsuccessful_login_count <username>
username unsuccessful_login_count=4
Then reset the counter with chsec
root@aix:/ # /usr/bin/chsec -f /etc/security/lastlog -a unsuccessful_login_count=0 -s <username>
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