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Former Member
Oct 18, 2008 at 08:47 PM

CPU cores not visible in ST06 - is this normal ?

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Hi,

we just started with using Linux as platform for SAP ... so we have e.g. one system (ECC 6.00) running on a server with SUSE Linux Enterprise Server 10 (x86_64), version 2.6.16.46-0.12-smp ...

On this server we have really performance problems due to a CPU utilization of nearly 100% ... now it is so that hardware is 4 quad core CPUs ... 16 cores in total ... should be miore then enough for this server ...

When checking CPU in transaction ST06, only 4 CPUs are shown ... according to my understanding (what might be wrong), there should be 16 CPUs visible (as there are 16 cores available) ...

When executing grep -i core /proc/cpuinfo on the server, 4 CPUs with 4 cores each are shown ... so everything seems to be ok ... but also when using "top" command (and pressing "1" to get a overview for the different CPUs) only 4 CPUs are shown (and not 16 ... what I would expect) ...

So my feeling is that we use only 25 % of the available capacity here ...

Thanks for any hints here ... most important would be to know if this "behaviour" (show only 4 CPUs) is correct ...

cheers

Thomas

PS: we have not installed Linux on our own ... we are using an outsourcer for hardware and OS ...