Re: [RFC/RFT PATCH v3] sched: automated per tty task groups

[Peter Zijlstra]

On Fri, 2010-11-19 at 07:55 -0500, Mathieu Desnoyers wrote:
> 
> > In general though, I think you can say that: cgroups ass overhead.
> 
> I really think you meant "add" here ? (Hey! The keys were next to each other!)
> ;)

Uhm, quite!

> > Simply because you add constraints, this means you need to 1) account
> > more, 2) enforce constraints. Both have definite non-zero cost in both
> > data and time.
> 
> Yep, this looks like one of these perpetual throughput vs latency trade-offs.
> 
Trade-off sure, throughput vs latency only in a specific use-case, its
more a feature vs cost thing, just like all them trace people want lower
cost tracing but want more features at the same time..


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