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maximun number of message queues


 
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Operating Systems Linux maximun number of message queues
# 1  
Old 09-08-2006
maximun number of message queues

how to check the maximun number of message queues in current linux enviornment? is there any command ?
# 2  
Old 09-08-2006
Helo, If I've undertood you, try:
Code:
ipcs -l

Regards.
# 3  
Old 09-09-2006
grial, thanks. that's what i want.

and, how to SET the "maximun number of message queues "?
any other command?
# 4  
Old 09-09-2006
As far as I know, there is no command for that. Nevertheless, you can tune kernel parameters modifyig the files located at /proc/sys/kernel. In your case, there are three files regarding to IPC messages: msgmni (maximum number of message queue identifiers), msgmnb (maximum number of bytes in a single message queue) and msgmax (maximum size of a message). So, you should change msgmni (defaults to 16).
Notice you'll need to modify this every time you reboot so, for instance, add a script to the boot process so that it's configured every reboot. Perhaps theres is another way to do it, but I do not know it.

Regards.
# 5  
Old 09-09-2006
grial, thank you. your reply helps a lot.

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