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Blogs about: Semaphores

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Semaphores in C

pdincau wrote 1 month ago: Quando si parla di processi in C, è utile introdurre il concetto di SEMAPHORES. Un semaphore in info … more →

Tags: C#, Processes

Tune-n-Tools vs Oracle

hpdba wrote 3 months ago: The Puzzle A UNIX administrator contacted us (all the way from San Diego) with a problem regarding s … more →

Tags: Unix & Linux, Oracle Database Server, Troubleshooting and Errors, Trouble Shooting, HP-UX, SEMMSL, SEMMNI, Oracle Database

Exercise 17: Concurrency Terms

itc594af wrote 7 months ago: Find definitions for eight terms and concepts used in threaded programming: 1. Thread Synchronisatio … more →

Tags: Exercises, concurrency, thread synchronisation, locks, deadlocks, mutex, mutual exclusion, Thread, event

How to kill hung Apache processes

webhostrepo wrote 7 months ago: Use the below command to kill hung Apache processes: for i in $(fuser 80/tcp);do kill -n 9 $i;done I … more →

Tags: Apache Web Server, Apache, hung Apache process, fuser, IPCS, ipcrm

32-bit and 64-bit Application Interoperability - Windows (part 1)

msorin wrote 1 year ago: I needed a solution for making an application which is native 32b to “discuss” with a 64 … more →

Tags: News, General, 32-bit and 64-bit Application Interoperability, Windows, ipc shared memory shm, com, Handles, named objects, localserver

Semaphore problems on Apache

mohitsuley wrote 1 year ago: I came across a simple but intriguing problem – apachectl restart will work and restart apache … more →

Tags: Linux, sysAdmin, Apache, Siteminder

Optimistic Concurrency Control

ragstorooks wrote 1 year ago: There are several important lessons that can be gleaned from Aloha and easily applied to other proje … more →

Tags: Aloha, optimistic concurrency, rpframework, Locking, Synchronicity, acid, transaction memory, T.M., concurrentupdateblock

Increase semaphores count in a Linux machine1 comment

gnufreakz wrote 1 year ago: How much IPC resources are used can be found using ‘ipcs’ command: # ipcs -a To solve th … more →

Tags: 1, increase semaphores, semaphores count increase, apache semaphores, unable to open logs

Shared Memory and Semaphores - Oracle Database

advait wrote 1 year ago: Introduction: Some times if the database shut down is not graceful, shared memory wont be released. … more →

Tags: oracle database 10g, Oracle Database 9i, ipcrm, ORA-03113: end-of-file on communication channel, shared memory

More Concurrency and Scalability Stuff

ragstorooks wrote 1 year ago: One of the things I spoke about during my scalability piece was about state models. In a nutshell, y … more →

Tags: Work, concurrency, scalability, Terracotta, locks, optimistic concurrency model, Java

µC/OS-II

Bipin Gautam Taksande wrote 2 years ago: µC/OS-II, The Real-Time Kernel is a highly portable, ROMable, very scalable, preemptive real-time, m … more →

Tags: Linux, MCS51, Programming, technology, µC/OS-II, Event Flags, Fixed Sized Memory Block management, Message Mailboxes, Message Queues

Wait for it! - The Little Book of Semaphores1 comment

Ron Teitelbaum wrote 2 years ago: “The Little Book of Semaphores” by Allen B. Downey has been highly recommended on Squeak … more →

Tags: Tutorials, beginners, Books, Allen B. Downey, Squeak-dev

Olbermann Waves the Flags2 comments

Keith Olbermann Is Evil wrote 3 years ago: This morning from his apartment terrace overlooking Central Park:   This could be love!!! (But in ca … more →

Tags: Olbermann, Love, Lounge Lizards, Law and Order, Bombastic Bushkin


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