Very Computer

I am wondering what could be the maximum number of shared memory that
could be attached to a single process (I would need at least 2048
attached to a single process!!!)Any idea???

Francis ANDRE

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Name    Default         Max             Description
------  --------------- ---------------
-------------------------------------

shmmax  1048576 (1Meg)  4294967295      Limits the maximum size of a
shared
                        (4GB)           memory segment, which is the
largest
                        2.5.1 or        value which can be requested of
                        higher          shmget(2).  Setting this value
high
                                        does not hurt anything, as the
                        2147483647      resource it controls is not
                        (2GB)           preallocated;  it is allocated
on
                        2.5 or lower    demand.

regards,
Mattias

There is a system defined limit.  This is the maximum request size
for shared memory which is not rejected out of hand.  This is the
SHMMAX variable which can be examined from the sysdef command.
The maximum amount of shared memory for a process is:
        SHMMAX * SHMSEG

These can be adjusted at the system level and there are many
examples on how to do this.

The hard upper limit is the total amount of virtual memory available
in the system.
 -- richard