by: dave

Sat, 10 May 2008 18:59:36 +0000

Thanks for the info, I think this solves a problem for me. I create linked lists [that is chained structure] in a shared memory seg. First program loads the data [lots of it about 10 lists including processes to start into shm. second process [an exec] reads the data in the shm, sets up coms to about 100 remote nodes, fires up processes local and remote , and supervises the “system”. Only under linux the second process cannot see the linked list. The start of a list is a fixed offset from the start of shm but the back and next pointers of the next “link” point to locations with junk. No data, no valid next. I will try this shm file to see if it will get me out of a problem. I ran your test code and it looks good. So again thanks for the info. best regards, (dja.)

by: tom

Mon, 18 Feb 2008 21:53:46 +0000

Do you have a source for the “heavy performance penalty”?

Comments on: Shared Memory In Linux

by: dave

by: tom