The semaphore tag has no wiki summary.
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Unexpected Output Running Semaphore [migrated]
I'm trying to write a program that forks another process and stays in sync so that the first process doesn't start its (i)th iteration until the second process has finished its (i-1)th iteration. Is ...
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1answer
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How to get proccesses currently running semaphores by /proc?
I wonder how to get processes currently running semaphores by /proc ? I guess it's possible by SysVIPC subdirectory.But I don't know how to use this commands.
Ubuntu 12.10
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Httpd : no space left on device
I am using Fedora 17 and over the last few days I am having an issue with my system. Whenever I try to start httpd it shows me:
Error: No space left on device
When I execute systemctl status ...
3
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1answer
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How do I increase the number of semaphore arrays in Linux?
In a Debian lenny server running postgresql, I noticed that a lack of semaphore arrays is preventing Apache from starting up.
Looking at the limits, I see 128 arrays used out of 128 arrays maximum, ...
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what is the difference between spin locks and semaphores?
What are the basic differences between spin locks and semaphores in action?
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3answers
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Why are spin locks good choices in Linux Kernel Design instead of something more common in userland code, such as semaphore or mutex?
I understand that Spinlocks are real waste in Linux Kernel Design.
I would like to know why is it like spin locks are good choices in Linux Kernel Design instead of something more common in userland ...
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5answers
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What Unix commands can be used as a semaphore/lock?
I want to run multiple Bash shell scripts in parallel. However, I want to avoid race conditions. What Unix commands are truly atomic that I could use for this purpose, and how can I use them?
