Re: SMP scalability: 8 -> 32 CPUs

Jes Sorensen (Jes.Sorensen@cern.ch)
28 Nov 1998 12:57:40 +0100


>>>>> "Eloy" == Eloy A Paris <eparis@ven.ra.rockwell.com> writes:

Eloy> Guys, excuse my ignorance, but does anyone know why Linus said
Eloy> in his last Linux Journal interview that right now it is fairly
Eloy> unrealistic to expect scaling from 8 to 32 CPUs? What's stopping
Eloy> Linux to scale in terms of CPUs?

Because we still haven't fine grained all the spinlocks in the kernel
yet. The IO subsystem still uses one global lock etc.

2.3+ work.

Jes

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