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What does the “>” (greater-than sign) CSS selector mean?
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answered Jul 12 '10 at 4:35
BoltClock♦B...
How is malloc() implemented internally? [duplicate]
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107
The sbrksystem call moves the "border" of the data segment. This means it moves a border of an...
Why are hexadecimal numbers prefixed with 0x?
...word). Something is still needed to specify the number base: the x is an arbitrary choice.
Long story: In the 60's, the prevalent programming number systems were decimal and octal — mainframes had 12, 24 or 36 bits per byte, which is nicely divisible by 3 = log2(8).
The BCPL language used the sy...
Disabling the fullscreen editing view for soft keyboard input in landscape?
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110
To do that, navigate to activity xml and paste android:imeOptions="flagNoExtractUi" in your cod...
Merge / convert multiple PDF files into one PDF
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I'm sorry, I managed to find the answer myself using google and a bit of luck : )
For those interested;
I installed the pdftk (pdf toolkit) on our debian server, and using the following command I achieved desired output:
pdftk file1.pdf file2.pdf cat output output.pdf
OR
gs -q -sPAPE...
Uncaught SyntaxError: Unexpected token with JSON.parse
...ight?
– HongchaoZhang
Aug 17 '16 at 10:00
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Boolean vs tinyint(1) for boolean values in MySQL
... enum its the easy and fastest
i will not recommend enum or tinyint(1) as bit(1) needs only 1 bit for storing boolean value while tinyint(1) needs 8 bits.
ref
TINYINT vs ENUM(0, 1) for boolean values in MySQL
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MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...5320k used, 2806804k free, 245020k buffers
Swap: 2097144k total, 100k used, 2097044k free, 26482048k cached
VIRT RES SHR %MEM
1892g 21g 21g 69.6
这台MongoDB服务器有没有性能问题？大家可以一边思考一边继续阅读。
先讲讲Linux是如何管理内存的
...
MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...5320k used, 2806804k free, 245020k buffers
Swap: 2097144k total, 100k used, 2097044k free, 26482048k cached
VIRT RES SHR %MEM
1892g 21g 21g 69.6
这台MongoDB服务器有没有性能问题？大家可以一边思考一边继续阅读。
先讲讲Linux是如何管理内存的
...
MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...5320k used, 2806804k free, 245020k buffers
Swap: 2097144k total, 100k used, 2097044k free, 26482048k cached
VIRT RES SHR %MEM
1892g 21g 21g 69.6
这台MongoDB服务器有没有性能问题？大家可以一边思考一边继续阅读。
先讲讲Linux是如何管理内存的
...