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What exactly are “spin-locks”?
... performance penalty if the wait time is really short, because your thread now has to wait for a preemption to receive CPU time again.
Besides, kernel objects are not available in every state of the kernel, such as in an interrupt handler or when paging is not available etc.
Spinlocks don't cause pr...
Git diff says subproject is dirty
...tain an annoying change in the behavior of git submodule.
Submodules are now regarded as dirty if they have any modified files or untracked files, whereas previously it would only be the case if HEAD in the submodule pointed to the wrong commit.
The meaning of the plus sign (+) in the output...
How to round up to the nearest 10 (or 100 or X)?
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The above doesn't work when x is a vector - too late in the evening right now :)
> roundUpNice(0.0322)
[1] 0.04
> roundUpNice(3.22)
[1] 4
> roundUpNice(32.2)
[1] 40
> roundUpNice(42.2)
[1] 50
> roundUpNice(422.2)
[1] 500
[[EDIT]]
If the question is how to round to a specified nea...
Is an anchor tag without the href attribute safe?
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Hello @Gunnar, the link seems to be gone now. Do you have another reference for the claim?
– user31782
Jan 9 '17 at 15:16
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SET NAMES utf8 in MySQL?
...b you will already see there is crap in it (e.g.using phpmyadmin).
until now this is not a problem! (wrong but works often (in europe)) ..
..unless another client/programm or a changed library, which works correct, will read/save data. then you are in big trouble!
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examining history of deleted file
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When you want to look at old files you really should know the difference between:
svn cat http://server/svn/project/file -r 1234
and
svn cat http://server/svn/project/file@1234
The first version looks at the path that is now available as http://server/svn/project/file and ...
How should I escape strings in JSON?
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@MonoThreaded Thanks for your reply, I still don't know why. but finally, I changed the method to fix it like below, if (c < ' ' || c > 0x7f) { t = "000" + Integer.toHexString(c).toUpperCase(); sb.appe...
How do I put the image on the right side of the text in a UIButton?
...want a UIButton with a background image, text, and an image in it. Right now, when I do that, the image is on the left side of the text. The background image, text, and image all have different highlight states.
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Child inside parent with min-height: 100% not inheriting height
...Green :)</p>
</div>
</div>
This way the child now acts as height 100% of the min-height.
I hope some people find this useful :)
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Can I browse other people's (Apple) bug reports? [closed]
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Which is all well and good, but since you don't know it's a duplicate til they email you back and tell you, I've found you should just file all the bugs you find.
– rustyshelf
Oct 2 '08 at 7:13
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