On Wed, 16 Jan 2008, Matthew Wilcox wrote: > About 0.1-0.2% 0.3% is considered significant.
The results are that stable? A kernel compilation which slightly rearranges cachelines due to code and data changes typically leads to a larger variance on my 8 way box (gets even larger under NUMA). I would expect that the variations on a database load would be more significant. I repeatedly saw patches from Intel to do minor changes to SLAB that increase performance by 0.5% or so (like the recent removal of a BUG_ON for performance reasons). These do not regress again when you build a newer kernel release? -- 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/
