On Thu, Feb 12, 2004 at 10:28:31PM -0500, Ray Lischner wrote: > According to the FAQ-o-matic, rsync needs about 100 bytes/file. I am > copying about 1,000,000 files, so that comes out to roughly 100MB. The > system has 192MB of physical RAM.
In addition to what J.W. says, also keep in mind that this estimate is per process. If you're doing a local copy (with all 3 processes on the same machine) you'll start out needing twice as much memory (only twice because 2 of the processes share most of their memory). As the transfer progresses, the receiving side's memory slowly becomes unshared until the 2 processes consume about twice as much real memory as they started out consuming (even though they aren't actually growing in size). The CVS version now has code that prevents this copy-on-write unsharing of memory on the receiving side, but only if file permissions are being preserved. It also uses significantly less memory in the per-file structures and in the hard-link handling. ..wayne.. -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
