Ingo Molnar <[EMAIL PROTECTED]> wrote: > > i really have no intention to allow multiple readers for rt-mutexes. We > got away with that so far, and i'd like to keep it so. Imagine 100 > threads all blocked in the same critical section (holding the read-lock) > when a highprio writer thread comes around: instant 100x latency to let > all of them roll forward. The only sane solution is to not allow > excessive concurrency. (That limits SMP scalability, but there's no > other choice i can see.)
What about allowing only as many concurrent readers as there are CPUs? -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
