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How to find a Java Memory Leak
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jdk/jdk1.6.0_38/bin/jmap -histo:live 60030 > /tmp/60030istolive1330.txt
Instead of taking two heap dumps, take two class histograms, like as described above; Then compare the class histograms and see the classes that are increasing. See if you can relate the Java classes to your application...
How to disable GCC warnings for a few lines of code
... libraries like ROS headers. I like to use following options in CMakeLists.txt for stricter compilation:
set(CMAKE_CXX_FLAGS "-std=c++0x -Wall -Wextra -Wstrict-aliasing -pedantic -Werror -Wunreachable-code ${CMAKE_CXX_FLAGS}")
However doing this causes all kind of pedantic errors in externally in...
How to Diff between local uncommitted changes and origin
... have local uncommitted changes, I can do a diff as follows git diff test.txt and it will show me the difference between the current local HEAD and the modified, uncommitted changes in the file. If I commit those changes I can diff it against the original repository by using git diff master origi...
SQL left join vs multiple tables on FROM line?
...ard can be viewed at http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt .
It took many years before database companies adopted the SQL-92 standard.
So the reason why the second method is preferred, it is the SQL standard according the ANSI and ISO standards committee.
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How can I check if a program exists from a Bash script?
...ne <<< $(echo ${ArrayVar[*]}), for word in $(fgrep -l $ORIGINAL *.txt), ls -l "$directory" | sed 1d , {{for a in seq $BEGIN $END}}, ... Many have tried to contact the authors and propose improvements but it's no wiki and requests have landed on deaf ears.
– lhunath
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Is HTML5 localStorage asynchronous?
... to add to the must, shall, may comment above RFC2119 ietf.org/rfc/rfc2119.txt
– mistertee
Mar 6 '18 at 14:22
1
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image processing to improve tesseract OCR accuracy
... at 100% quality.
Tesseract then was able to extract all the text into a .txt file
Gimp is your friend.
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Basic HTTP and Bearer Token Authentication
...ization headers just dont work. Looking at the specs (ietf.org/rfc/rfc2617.txt) i can see that this should be possible. But as also stated ""The user agent MUST choose to use one of the challenges with the strongest auth-scheme it understands and request credentials from the user based upon that cha...
How to read the mode field of git-ls-tree's output
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From the Git index-format.txt file, regarding the mode:
32-bit mode, split into (high to low bits)
4-bit object type
valid values in binary are 1000 (regular file), 1010 (symbolic link)
and 1110 (gitlink)
3-bit unused
9-bit...
How to display request headers with command line curl
...of the below options:
--trace-ascii - # stdout
--trace-ascii output_file.txt # file
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