shm in databases (was: MM deadlock)

Uwe Ohse (uwe-tlk19990114@ohse.de)
14 Jan 1999 18:30:25 -0000


andrea@e-mind.com wrote:

>I was't aware of that. I noticed that also postgres (a big database) uses
>shm but it's _only_ something like 1 Mbyte (at least during trivial
>usage). With my current code such 1 Mbyte would not be touched unless

db root# ipcs -m

------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x52564801 768 root 660 33554432 11
0x52564802 769 root 660 10248192 11
0x52564803 770 root 660 8192000 11
0x52564804 771 root 660 8388608 11

That's informix on linux.

Regards, Uwe

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