Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Message-ID: <405E0B72.9000501@gamma-rs.ch> Date: Sun, 21 Mar 2004 22:38:58 +0100 From: "Charles L. Werner" Reply-To: cw AT gamma-rs DOT ch Organization: Gamma Remote Sensing AG User-Agent: Mozilla Thunderbird 0.5 (Windows/20040207) MIME-Version: 1.0 To: Cygwin Subject: Possible over allocation of memory resources by cygwin Content-Type: multipart/mixed; boundary="------------030106060101010200090401" --------------030106060101010200090401 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit I have observed the following situation: I have been running a C program that utilizes approximately 132 MB of RAM under both Cygwin (1.5.9-1, Windows XP professional, 1 GB ram) and under Linux. The same program with identical data was run on both machines. One is a 3 GHz P4 the other a 3 GHz Xeon. On both the Linux machine and Cygwin, top shows about 132 MB of space needed, however, the task manager shows an additional commit jumping from 196 to 483 MB when the program starts. Not only that, but the program runs about 3 times slower. (1500 sec vs 500 sec(Linux)). A larger program that nominally requires 450 MB, causes the commit charge to go up to over 2 GB! followed by frantic swapping. Several program seem to suffer similarly, and I have not seen anything like this before. Any thoughts? Could this be related to the latest changes in cygwin? Thanks, Charles -- Dr. Charles L. Werner Gamma Remote Sensing AG Thunstrasse 130 CH-3074 Muri b. Bern, Switzerland Tel: +41 31 951 70 05 FAX: +41 31 951 70 08 http://www.gamma-rs.ch --------------030106060101010200090401 Content-Type: application/gzip; name="cygcheck.output.gz" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="cygcheck.output.gz" H4sICG4KXkAAA2N5Z2NoZWNrLm91dHB1dACdXEtz2zqyXo+r/B+wuTU5lUuK AB+SXHUXvnaccZ04cR07Ey9U5aFISGZMkSySkuX8+mnwTaBJMUdZ2CK+bjbQ jX4BzvnZ1fv2LYjIjyBa2rOvj+QqjjbBdp+6eRBH5Dpwt1Gc5YGXnZ9d7dOU Rzl5eM9yviOPwY5fkId9RO7clDBKGLswrQvTIcwwrPOz8zNg6sdvGXm6J/dp vOFZBjzdkPybp8TWKfn/fRD6hDmGQR54egg8Tu5d75VQQXzv5i8X/9DPz/5x dbHyCilX+yxdhbHnhqt1EPVGTn0XlE+U/uW0I3fBn4/8abULXnN+bB//uP16 /e3HwyorZmmy3tM+5KGCrH6s+Q5/Pcx7m7o7chOEPFt9D/PU/eQHOTZ4Fe92 sOTll8+Pf66YbgwxetgnSZzm5DGOw2zVe/VLvOMr722VeWmQ5NnA+n2+vLu7 fH74dvP44/KvT5rQmGFSa3V9+3D/fKC6ia7gOO1dQUp162/QFq9d6vO/QXp9 e3PzfHB0+2/Qfrl8fD6wvzXb2/vHS7FSVKGtNfD47duXh3L0/OzbPk/2Odmk 8Y707GQV+Do/cvIhiqM8494f52ffb68vCDUM84P39gf5LL7Z1PzwNY44jHZ+ 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