Messages in this thread | | | Date | Sat, 28 Aug 1999 12:17:13 +0100 (GMT) | From | Matthew Kirkwood <> | Subject | Re: Oracle and Linux (hand in hand) |
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On Sat, 28 Aug 1999, Matthew wrote:
> I've read tuning tips wrt Oracle on Linux. Most say to increase > SHMMAX and the semaphores. I ask you this, what _real_ difference > does it make? Am I going to be able to see the difference on a VA3500 > (quad pent III 550,512M RAM)? I'd much rather use a stock kernel, but > I'll hack for the good of my users.
I presume you'd be running a 2.2 kernel, in which case SHMMAX is tunable via /proc/sys/kernel/shmmax.
You appear to be limited to 128 semaphore ids at 32 sems per id.
I've never really used SysV IPC, but I suspect that 4K semaphores "should be enough for anybody".
Matthew.
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