Support Board
Date/Time: Sun, 08 Mar 2026 07:13:19 +0000
V2867 SierraChart timer question
View Count: 302
| [2026-01-21 19:18:38] |
| Sébastien - Posts: 125 |
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Hi, I updated to V2867 and experimented with SierraChart Timer VS OS timer. I have my Chart DOMs Chart Update Interval in Milliseconds set to 20ms. Multiple Chart Back Test Update Interval in Milliseconds: 20 Timer Management Enable: No Minimum Delay Between Chart Updates in Milliseconds: 20 I did some tests in Replay mode for the NY Open of today on the ES/NQ futures (very volatile). Here are the results : When I use the Sierrachart timer : - the Chart Update Interval is clearly higher than 20ms. It looks like 100ms or more. Chart update is very slow. - CPU utilization is very low. - Draws Per Second are low (always under 10) - Calculations Per Second are also low ( always under 10) With OS timer : - I have a true 20ms Chart Update Interval. Charts are fluid and very fast. - CPU utilization is higher - Draws per Second are higher (above 30 from time to time) - Calculations Per Second are higher (above 30 from time to time) Question : 1) Do you know why I can't reach a high refresh rate with the SierraChart Timer ? Another off-topic question (not related to V2867) : I always see a very big difference of CPU utilization between Replay Mode and Live Mode. My CPU utiliziation is about twice less in Replay Mode, for the same market at the same time of day. 2) Is it normal for SierraChart to use way less resources during Replay Mode than in Live Mode ? |
| [2026-01-21 19:46:54] |
| Sierra_Chart Engineering - Posts: 23176 |
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Try lowering these two values: I have my Chart DOMs Chart Update Interval in Milliseconds set to 20ms. Minimum Delay Between Chart Updates in Milliseconds: 20 You could set this to 5: Minimum Delay Between Chart Updates in Milliseconds It is impossible for us to know the answer to this. We have no idea: 2) Is it normal for SierraChart to use way less resources during Replay Mode than in Live Mode ? 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, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2026-01-21 19:47:15
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| [2026-01-21 21:45:00] |
| Sébastien - Posts: 125 |
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With Minimum Delay Between Chart Updates in Milliseconds: 5 I get better results. Now, with Chart Update Interval in Milliseconds set to 20ms, the Chart update interval looks like 40ms true refresh rate. I also tried 10ms but it changed nothing. It is way better than before where 20ms Chart Update Interval in Milliseconds looked like 100ms true refresh rate. But in my case, OS timer still gives way better performance. 20ms looks like 20ms, and 10ms looks like 10ms. I wonder if other users experience the same phenomenon ? |
| [2026-01-22 14:28:40] |
| Sawtooth - Posts: 4315 |
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I wonder if other users experience the same phenomenon ?
OS timers work better for me also.
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| [2026-01-22 15:00:21] |
| User690628 - Posts: 18 |
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OS timers continue to work better for me as well. I'd love to get all the benefit of using SC timers, and I can only assume the issues many are facing are from using Windows 10/11 compared to Windows 7 these are being tested on? I hope this gets resolved as I'd really like to buy into SC timers. Thank you.
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| [2026-01-26 22:05:41] |
| Sierra_Chart Engineering - Posts: 23176 |
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In the latest prerelease this can now be set as low as 0: Minimum Delay Between Chart Updates in Milliseconds
Try using zero, or try using 1 ms. No, it is not related to this, and testing is not done on Windows 7. And testing on specific operating systems, is irrelevant and is not done. Certainly testing is done to verify proper functionality, but the OS version has no relevancy whatsoever to the development: , and I can only assume the issues many are facing are from using Windows 10/11 compared to Windows 7 these are being tested on?
This functionality of Sierra Chart timers has no dependency on operating system version. 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, use the Teton service: Sierra Chart Teton Futures Order Routing |
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