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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
...you still want your Hyper-V support. More info here
AMD Ryzen ?
If your CPU is AMD Ryzen, you may need to enable 'Windows Hypervisor Platform' feature just like you disabled Hyper-V above.
If it is enabled and still things don't work, try disabling it. ¯\_(ツ)_/¯
Reboot required
Disable Antiv...
What is the direction of stack growth in most modern systems?
... from my big honkin' System z at work to a puny little wristwatch.
If the CPU provides any kind of choice, the ABI / calling convention used by the OS specifies which choice you need to make if you want your code to call everyone else's code.
The processors and their direction are:
x86: down.
SP...
Favourite performance tuning tricks [closed]
...he query plan - always.
Turn on STATS, so that you can examine both IO and CPU performance. Focus on driving those numbers down, not necessarily the query time (as that can be influenced by other activity, cache, etc.).
Look for large numbers of rows coming into an operator, but small numbers coming...
Cannot send a content-body with this verb-type
...Headers.Add("Accept-Language", "en-us\r\n");
p_request.Headers.Add("UA-CPU", "x86 \r\n");
p_request.Headers.Add("Cache-Control", "no-cache\r\n");
p_request.KeepAlive = true;
}
share
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i...
Is there a performance gain in using single quotes vs double quotes in ruby?
...rsed to a tSTRING_CONTENT (see the source in parse.y). In other words, the CPU will go through the exact same operations when creating 'string' or "string". The exact same bits will flip the exact same way. Benchmarking this will only show differences that are not significant and due to other factor...
Time complexity of Euclid's Algorithm
...rations is linear in the number of input digits. For numbers that fit into cpu registers, it's reasonable to model the iterations as taking constant time and pretend that the total running time of the gcd is linear.
Of course, if you're dealing with big integers, you must account for the fact that ...
String.Replace ignoring case
...nsensitive way to replace all values.
Advantages of this method:
High CPU and MEMORY efficiency;
It is the fastest solution, 2.5 times faster than other's methods
with regular expressions (proof in the end);
Suitable for removing parts from the input string (set newValue to
null), optimized for...
Unable to load SOS in WinDbg
...nging to get both on my system, since the latest installers autodetect the CPU type. Is there an override flag that you know of for the msi? I'm going to install an old 32bit version of WinDbg, but don't know what to expect.
– Dave
Dec 21 '10 at 7:51
...
Find size of object instance in bytes in c#
... the memory consumption of a runtime graph of objects. VS2017's memory and CPU profiling are very good, as are ReSharper's and other tools, and that's what I'd use to measure.
– jnm2
Mar 9 '17 at 18:23
...
What's the difference between `1L` and `1`?
... large vectors, that's less wasted memory and less to wade through for the CPU (so it's typically faster).
Mostly this applies when working with indices.
Here's an example where adding 1 to an integer vector turns it into a double vector:
x <- 1:100
typeof(x) # integer
y <- x+1
typeof(y) # ...