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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 (...
ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...zmq_recv函数返回错误信息 ，并使用zmq_strerror函数进行错误定位
if(zmq_recv(pSock, szMsg, sizeof(szMsg), 0) < 0)
{
printf("error = %s\n", zmq_strerror(errno));
continue;
}
printf("received message : %s\n", szMsg);
...
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 ...
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...
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...
Storing time-series data, relational or non?
... on varying metrics such as CPU utilisation, disk utilisation, temperature etc. at (probably) 5 minute intervals using SNMP. The ultimate goal is to provide visualisations to a user of the system in the form of time-series graphs.
...
Why is it not advisable to have the database and web server on the same machine?
...xtra cost, dedicated network connection between the two, more maintenance, etc.), especially for a small application, where neither piece is using too much CPU or memory? Even with two servers, with one server compromised, an attacker could still do serious damage, either by deleting the database, ...
Why is volatile not considered useful in multithreaded C or C++ programming?
...ake concurrent access to
data safe (spinlocks, mutexes, memory barriers, etc.) are designed to
prevent unwanted optimization. If they are being used properly, there
will be no need to use volatile as well. If volatile is still
necessary, there is almost certainly a bug in the code somewher...