Re: [patch] kstat change to see how much Linux SMP really scale well

Andrea Arcangeli (andrea@e-mind.com)
Sat, 13 Mar 1999 13:13:42 +0100 (CET)

> Now the dream would be detailed per spinlock counters,
> unfortunately the current spinlock declaration syntax makes it hard
> to name them (and for dynamic spinlocks embedded in other
> structures a different way would be needed anyways than to
> statically name the spinlocks - for them reading System.map doesn't
> work well neither). This means for named spinlock profiling it is
> needed to change all spinlock users :(:(. I believe for effective
> SMP tuning in 2.3 they are definitely needed though.

I think this is something has to be done in the patch-ikd-arca and not in
the mainstream kernel. patch-ikd-arca has just many neat features very
very useful for both profiling and debugging the kernel. But since it's
only something that only hackers will care about it's here instead of in
the kernel ;)

ftp://e-mind.com/pub/linux/patch-ikd-arca/

I forget to do a 2.2.3 release, hopefully the 2.2.2 will works fine in
2.2.3...

Andrea Arcangeli

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