On Sat, Jun 26, 2010 at 07:25:56PM +1000, Nick Piggin wrote: > Biggest thing is multiple small files operations like on the same > directory. Best case I measured back when doing AS io scheduler > versus deadline was about 100x improvement on a uncached kernel > grep workload when competing with a streaming writeout (the writeout > probably ended up going somewhat slower naturally, but it is fairer). As I mentioned below I absolutely see the case for reads. A normal grep basically is a dependent read kind of workload. For for writes it should either be O_SYNC-style workloads or batched I/O. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
