From: Andreas Schwab Date: Sun, 17 Aug 2014 11:03:43 GMT Subject: Re: [PATCH v2 2/2] convert: Stream from fd to required clean filter instead of mmap Message-ID: <871tsfwf74.fsf@igel.home> In-Reply-To: <7147D39A-66CE-4824-B051-C625789BFFA5@zib.de> Steffen Prohaska writes: > On Aug 16, 2014, at 7:00 PM, Andreas Schwab wrote: > >> Steffen Prohaska writes: >> >>> The test should confirm that the the file that is added is not mmapped to >>> memory. >> >> RSS doesn't tell you that. You can mmap a big file without RSS getting >> bigger. > > All data are accessed after mapping, so RSS should be fine. RSS can shink any time when memory is tight. > The test always did what I expected. Not a sufficient condition. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."