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Memcache(d) vs. Varnish for speeding up 3 tier web architecture
... from doing a lot of read work, Varnish saves your dynamic web server from CPU load by making you generate pages less frequently (and lightens the db load a bit as well if not for Memcache).
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C#: List All Classes in Assembly
...an't do anything because it is drilling away at trying to get them all. My CPU shoots to 30% on one of my 4 cores. I mean really I am just wondering if there is a way to say, "Hey - only look in THIS namespace" - I am under the impression that it's not possible because the GetTypes() method only has...
What's the best way to check if a String represents an integer in Java?
...rtinCarney I modified it and benchmarked pattern compilation. Obviously my CPU/JIT is faster, but if I interpolate it back, the compilation time is 336.
– tedder42
Oct 8 '14 at 23:26
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How do I install cygwin components from the command line?
... Nice! setup.exe is now called setup-x86.exe - or a variant depending on cpu bits. Also see here for the package list cygwin.com/packages
– ErichBSchulz
Jan 18 '14 at 6:43
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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;
}
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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 ...