Support Board
Date/Time: Wed, 15 Jan 2025 12:50:18 +0000
Tool.AddMethod Performance questions
View Count: 1117
| [2017-06-14 14:33:17] |
| DabbaDo - Posts: 148 |
|
Attached is a study and a chartbook supporting my question. Version 1568, Windows 10 The Tools.AddMethod methods for Add_Only_If_New and Add_Or_Adjust seems surprisingly slow, in a non-linear fashion (not a square function, but nearly). For example, with QQQ 1 Minute chart, last 30 days, I have 11,804 bars (UES). I get these results, using the wonderful time measurements on the studies dialog: 21 ms UTAM_ADD_ALWAYS Draw an X at the top of each bar 3308 ms UTAM_ADD_ONLY_IF_NEW Draw an X at the top of each bar. Called with Tool.LineNumber = -1 every time; 9114 ms UTAM_ADD_OR_ADJUST Draw an X at the top of each bar, then move it to to the next bar, resulting in a X at the top of the last bar only. 4634 ms UTAM_ADD_ALWAYS then Delete. Draw an X at the top of each bar, then Delete it before the next bar, resulting in a X at the top of the last bar only. The numbers jump around a lot. For example, if I only run the first and third: 39 ms UTAM_ADD_ALWAYS Draw an X at the top of each bar 4372 ms UTAM_ADD_OR_ADJUST Draw an X at the top of each bar, then move it to to the next bar, resulting in a X at the top of the last bar only. And there seems to be interaction between the study instances on the chart: For example, if I only run the fourth one: 34 ms UTAM_ADD_ALWAYS then Delete. Draw an X at the top of each bar, then Delete it before the next bar, resulting in a X at the top of the last bar only. Bottom line, I typically more-complex coding to use the fourth case, UTAM_ADD_ALWAYS then Delete, rather than use UTAM_ADD_OR_ADJUST because of the huge performance difference on larger bar sizes. I think I must be missing something. Thanks, Dale |
 Debug.cht - Attached On 2017-06-14 14:28:51 UTC - Size: 58.33 KB - 352 views ToolPerformance.cpp - Attached On 2017-06-14 14:29:13 UTC - Size: 3.01 KB - 437 views |
| [2017-06-15 01:15:18] |
| |
|
All of this does make sense when you understand what is happening at a lower level. We are working on documentation for all of this. Give us a couple of days. In general, any type of AddMethod that has to search the Chart Drawing container to see if the drawing exists, is going to take longer and the larger the container is of drawings, the longer it takes. And there seems to be interaction between the study instances on the chart: For example, if I only run the fourth one: 34 ms UTAM_ADD_ALWAYS then Delete. Draw an X at the top of each bar, then Delete it before the next bar, resulting in a X at the top of the last bar only. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2017-06-15 01:15:52
|
| [2017-06-16 02:24:08] |
| |
|
We are done with the documentation: https://www.sierrachart.com/index.php?page=doc/ACSILDrawingTools.html#AddMethod We have also done some performance improvements which will be out in the next release. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2017-06-16 06:29:40] |
| |
|
3308 ms UTAM_ADD_ONLY_IF_NEW Draw an X at the top of each bar. Called with Tool.LineNumber = -1 every time; You will notice a huge performance improvement with this particular operation in version 1571. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
To post a message in this thread, you need to log in with your Sierra Chart account: