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Recommended method for escaping HTML in Java
...ers when the OP asked to escape the 4 relevant characters? You are wasting CPU and memory.
– David Balažic
Sep 20 '18 at 10:51
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Easy way to concatenate two byte arrays
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Whether it's wasting cpu and memory depends on how often you do the operation. If it's a billion times a second - sure, optimize it. Otherwise, readability and maintainability might be the winning considerations.
– vikingste...
Create a string with n characters
...te for Hotspot compilation, and stands a better chance of being found your CPU cache. Future JVMs may assign it as an intrinsic function. Rolling your own cuts you off from all this performance goodness...
– SusanW
Aug 5 '16 at 12:26
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How to determine total number of open/active connections in ms sql server 2005
...5/win 2003 Application occasionally becomes very unresponsive, the memory/cpu usage does not spike. If i try to open any new connection from sql management studio, then the it just hangs at the open connection dialog box.
how to deterime the total number of active connections ms sql server 2005
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Logic to test that 3 of 4 are True
...ranching solutions were quite a bit quicker operation-for-operation as the CPU could predict the code path better, and execute more operations in tandem. There is about 50% less work in the branching statement here though.
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Replacing a char at a given index in string? [duplicate]
... bit on how to make a decent function that does what I need. I suppose the CPU cost is high, but the string sizes are small so it's all ok
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Ruby on Rails Server options [closed]
... to note however is that the MRI Ruby interpreter cannot leverage multiple CPU cores even when there are multiple threads, due to the use of the Global Interpreter Lock (GIL). You can work around this by using multiple multi-threaded processes, because each process can leverage a CPU core. JRuby and...
java.lang.OutOfMemoryError: GC overhead limit exceeded [duplicate]
...d / high memory pressure situations, but on the other hand it used up more CPU, so that the requests took 5-10% longer to execute under normal load situations.
– anre
Oct 13 '16 at 20:40
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Zero-based month numbering [closed]
...gister, they XOR'ed the register with itself, which was slightly faster in CPU cycles. This meant that counting would start with 0 and would always be up to the length of elements, excluding the last one.
Also, the use of zero is also popular with pointer arithmetics where you would use one base po...
Convert a positive number to negative in C#
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@makerofthings7, the one you linked to is a lot more CPU instructions -- an absolute-value operation (at least three instructions on x86), followed by a MUL (or possibly a NEG if the compiler is clever). This answer is a single, lightweight NEG opcode, nothing more or less than...