On Tue, June 16, 2009 8:53 am, Amit Gud wrote: > Trond Myklebust wrote: >> It boils down to this: I'm extremely reluctant to get into an arms race >> of adding ever more mount options for increasingly finer-tuned attribute >> cache timeouts. While such an option may meet _your_ machine room >> requirements here and now, it becomes tiresome over the years as >> machines gain power, and people first start lobbying for millisecond >> timeouts, then microseconds, nanoseconds, pico... in order to catch up. >> > > It only makes sense to make machines more powerful and put that power to > optimum use. If keeping up with increased resolution is an issue, you > think something like "-o unit=ms acregmin=..." would be better? 'unit' > can apply to all the time related options defaulting to seconds. Wasn't this problem solved hundreds of years ago by the invention of the decimal point :-) -o acregmin=0.0012 Write the code to use as much precision as makes sense given the value of HZ - and round up. No new mount options. NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
