![]() | |||||||||||||
Messages in this thread |
On Thu, Jun 30, 2005 at 08:52:25AM +0300, Denis Vlasenko wrote: > Hi Andrew, > > Optimizing delay functions for speed is utterly pointless. > > This patch turns ssleep(n), mdelay(n), udelay(n) and ndelay(n) > into functions, thus they generate the smallest possible code > at the callsite. Previously they were more or less inlined. Optimizing mdelay() and udelay() for speed is pointless, but optimizing ndelay() makes a lot of sense - if the setup time (call, etc) of the delay is large, the delay time will be off by many percent. -- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
| Last update: 2005-07-01 07:56 [from the cache] ©2003-2008 | |||||||||||||