Hey Minchan, Thanks for the patches! On 04/25/2012 09:32 AM, Nitin Gupta wrote: > I think Seth was working on this improvement but not sure about the > current status. Seth? Yes, I looked at this option, and it is very clean and portable. Unfortunately, IIRC, with our rate of mapping/unmapping, flush_tlb_kernel_range() causes an IPI storm that effective stalls the machine. I'll apply your patch and try it out. Thanks, Seth -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>