Shared Memory is the BEST IPC and fast way of communication
For shared memory system calls are less b/w kernel and application compared to other IPC's.
http://www.ddj.com/documen
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Question
Which is most efficient IPC method?
hello,
Is there any type of comparison among semaphores,sockets,shared memory,message queues,pipes that will state that which is most appropriate methos for any type of application? In an all how to determine which IPC mechanism use for a newly developing appliations? also which is fast mechanism?
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Answers
What does the app have to communicate with? I am guessing from your question - other invocations of itself.
TCP/IP sockets give you the possibility that the other copy is running on another system. They do incur more overhead than some other methods, but are you really going to notice?
Shared memory is quick but definitely same system only. And you need to coordinate access to it so corrupt messages are not seen.
X uses unix sockets for intra system and IP sockets for inter system communication. As an experiment, you could configure your local X server to use IP only and see if you can tell the difference. I don't think you will...
hello,
sorry to response late. I am asking in general on linux on same system say i have to write a application that requires to execute concurrent proesses quick and have to access some data which is shared then which is fast shared memory, semaphores, message queue, pipes?
Can IPC be used between diferent systems also then which is best for that case?
I think sockets is not IPC right?
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by: g14Posted on 2005-08-30 at 13:21:00ID: 14788617
Use DBUS. It is the new 'accepted' IPC mechanism from freedesktop.org and is being embraced by the big window managers and graphical toolkits.
http://www.freedesktop.org
If you want something that won't go away in the future (like bonobo being phased out) stick with DBUS.