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Why does this code using random strings print “hello world”?
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I'll just leave it here. Whoever has a lot of (CPU) time to spare, feel free to experiment :) Also, if you have mastered some fork-join-fu to make this thing burn all CPU cores (just threads are boring, right?), please share your code. I would greatly appreciate it.
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Async/Await vs Threads
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Worth mentioning await Task.Run for cpu-bound work. If I understand correctly, that sometimes accomplishes what one would otherwise create a thread, or a background worker, to do.
– ToolmakerSteve
Jun 27 '18 at 5:26
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What is Turing Complete?
... together to allow for all of those nice things that you mention. E.g. the CPU produces "tape" for the GPU to read so that it can write "tape" for the monitor so that the monitor can write "tape" to the user. Likewise, the CPU could produce "tape" for the hard drives, NICs, sound cards, etc.
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How are everyday machines programmed?
...have 8 or 16 pins on the chip - compared to scores of pins in your regular CPU socket.
So the workflow is write some code (say, in C), compile it on your desktop machine. That compiler generates machine code for the embedded chip. Then that code is loaded onto the microprocessor (and you need speci...
Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
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Disabling the subversion plugin took my cpu down from 100% to less than 2%. If your IntelliJ 13 is slow it is probably a plugin, this should be the accepted answer.
– pllee
Jun 6 '14 at 15:22
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Is Java really slow?
...time compiled programs can't tweak their code in real-time to the specific CPU & system they're running on. JIT provides some very efficient loop transformations this way.
A couple of other historical facts contributed to the "Java is slow" reputation:
Before JIT compilation (Java 1.2/1.3), ...
Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
...java -jar javacpp.jar Dot.java -exec
With an Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz, Fedora 30, GCC 9.1.1, and OpenJDK 8 or 11, I get this kind of output:
dot(): 39 ns
dotc(): 16 ns
Or roughly 2.4 times faster. We need to use direct NIO buffers instead of arrays, but HotSpot can access direc...
Is there a way to iterate over a range of integers?
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Debating the runtime performance of nanosecond CPU operations, while common in Goland, seems silly to me. I'd consider that a very distant last consideration, after readability. Even if CPU performance were relevant, the contents of the for loop will almost always swamp w...
Warning on “diff.renamelimit variable” when doing git push
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Although it also could be viewed as a hard-coded bound on the amount of CPU
time we're willing to allow users to tell git to spend on handling
renames.
An upper bound may make sense, but unfortunately this upper
bound was neither communicated to the users, nor documented anywhere.
Al...
Going from a framework to no-framework [closed]
...ating engine. Featurewise it's almost identical to Smarty but doesn't melt CPU's.
– Phil Sturgeon
Oct 11 '10 at 11:21
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