jcduell_at_lbl_dot_gov
Date: Fri Jul 23 2004 - 16:57:37 PDT
On Fri, Jul 23, 2004 at 05:08:53PM -0400, Greg Bronevetsky wrote: > I'm responding from my home account since I won't have access to my IBM > account over the weekend. > > The malloc in question reserves the space via mmap. The OS is Suse 8.0 > with the 2.4.20 kernel. Do you know if mmap-ed but untouched pages would > be saved by BLCR? Malloc is undoubtedly using an anonymous mmap for this, which means there are no pages on disk that the mmapped pages correspond to. Under Linux untouched anonymous pages are just pointers to the kernels' ZERO page, and we don't save them in checkpoints. -- Jason Duell Future Technologies Group <jcduell_at_lbl_dot_gov> Computational Research Division Tel: +1-510-495-2354 Lawrence Berkeley National Laboratory