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How to read the Stock CPU Usage data
On Ice Cream Sandwich, an option in the Developer Options is "Show CPU Usage", which adds an overlay on the screen (see screenshot below).
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How to calculate the CPU usage of a process by PID in Linux from C?
I want to programmatically [in C] calculate CPU usage % for a given process ID in Linux.
12 Answers
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Virtual functions and performance - C++
...ourse cannot optimise based on what might happen at runtime, so prediction etc would have to be done by the CPU itself... but good C++ compilers (if instructed) go to great lengths to optimise functions and loops long before runtime.
– underscore_d
Apr 10 '16 a...
Understanding Apache's access log
...0")
%>s is the status code sent from the server to the client (200, 404 etc.)
%b is the size of the response to the client (in bytes)
Referer is the Referer header of the HTTP request (containing the URL of the page from which this request was initiated) if any is present, and "-" otherwise.
User...
FTP/SFTP access to an Amazon S3 Bucket [closed]
...our security credentials in a form access-key-id:secret-access-key to /etc/passwd-s3fs
Add a bucket mounting entry to fstab:
<bucket> /mnt/<bucket> fuse.s3fs rw,nosuid,nodev,allow_other 0 0
For details, see my guide Setting up an SFTP access to Amazon S3.
Use S3 Client
Or use any...
Technically, why are processes in Erlang more efficient than OS threads?
...he entire CPU state (normal, SSE and FPU registers, address space mapping, etc.).
Erlang processes use dynamically allocated stacks, which start very small and grow as necessary. This permits the spawning of many thousands — even millions — of Erlang processes without sucking up all available RA...
Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario
...hich is why for example asynchronous pages exist in ASP.NET. If I want to fetch a result from a remote web service to display, I'm not going to do that via MSMQ. In this case, I'm writing to a log using a remote post. It doesn't fit the problem to write a Windows Service, nor hook up MSMQ for that (...
Go > operators
...ed to be) the same. The reason for this is that emitting exactly 1 SHL/SHR/etc instruction to implement the shift operator is the best thing that an optimizing C/C++ compiler can do when the context does not tell it anything about 'x' and 'y'. And, if the compiler knows for a fact that the code has ...
How do I measure separate CPU core usage for a process?
Is there any way to measure a specific process CPU usage by cores?
8 Answers
8
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VS2013 permanent CPU usage even though in idle mode
I've recently updated VS2013 to Update 1 and since then VS takes CPU usage to 25% (on a 4 cores intel i5 cpu) permanently even though it's supposed to be idle. I thought it has some unfinished background processes so I left it running for a while but it keeps using the cpu when it's supposed to be i...