Support Board
Date/Time: Thu, 09 Jan 2025 08:58:38 +0000
Post From: Physical Memory Over Use due to Sierra Charts
| [2016-07-01 02:07:15] |
| chisel - Posts: 23 |
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Just thought I would add my experience to possibly calm the nerves of the OP: Today, I ran into a similar situation as FXDojiStar on a W7 x64 system with 8 GB of physical memory and thought I would need to add much more. Previously, with Firefox, IB TWS and SC with seven chartbooks open, memory usage in Task Manager was around 3 GB if not less. Today, I added about a dozen intraday and daily charts and all of a sudden the memory usage went up to over 7 GB. When I looked in the Task Manager processes, SC was only using 310 MB of memory, so I searched and found RAMMap from Microsoft. The Mapped File (whatever that is) is what is using/reserving 5 GB of memory, and IMO, the huge Mapped File is indirectly related to SC as mentioned in post #5, because when I close SC, memory usage drops 5 GBs instantly. BUT, as mentioned in post #2, the OS will manage the memory cache which I read on this page before finding the SC post above: http://superuser.com/questions/527075/how-do-you-force-windows-7-to-release-a-mapped-file Just to see if I could get a low memory error, I intentionally added more charts to try to get the memory over the physical limit of 8 gb, and as the usage approached 8 gb, the OS cleared the cache and memory usage as seen in the Task Manager went back down but subsequently increased. I have not seen any type of "out of memory" error so no problems so far. Since SC cannot use more than 4 gb of memory, 8 gb in my system should be fine unless I add more instances of SC with many charts. Date Time Of Last Edit: 2016-07-01 11:19:45
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