Messages in this thread | | | Date | Tue, 24 Jun 2008 20:00:21 +0200 | From | Manfred Spraul <> | Subject | Re: [RFC -mm 0/6] sysv ipc: scale msgmnb with the number of cpus |
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Solofo.Ramangalahy@bull.net wrote: > Humm... now this make me think that you did not change the MSGMNB > value when you changed MSGMNI and MSGMAX. > Maybe that was on purpose? > > I was afraid that it might break user space applications that queue a few kb of messages. That's also the reason for > if (msgsz + msq->q_cbytes <= msq->q_qbytes && > 1 + msq->q_qnum <= msq->q_qbytes) { > break; > } It's possible to send 0-byte messages even if the message queue is full [except that you can't send more than MSGMNB messages].
-- Manfred
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