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Date/Time: Sat, 24 Aug 2019 12:28:01 +0000



Replay mode stops working if you press pause and then play again

Support Request:
[2019-08-07 10:51:41]
User884307 - Posts: 127
Hi

As the header describes, Replay mode stops working if (after it starts replaying) you press pause and then play again.

It IS working fine in 1952.......untill i upgraded!

Cheers
[2019-08-07 11:38:05]
Sierra Chart Engineering - Posts: 75442
What version do you notice this with? It might be related to the new ACSIL functions to control chart replays. We do not notice this problem with 1967.

We also do not notice this with prerelease 1970 either.
Sierra Chart Support - Engineering Level

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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
Date Time Of Last Edit: 2019-08-07 11:42:30
[2019-08-07 11:49:37]
User884307 - Posts: 127
Hi, thanks for the reply 🙏

1954 works normally, anything after that right upto current version doesn't work!

Thanks
[2019-08-07 11:58:53]
User884307 - Posts: 127
UPDATE: v1959 is the last version to work as normal, anything after doesn't work.
[2019-08-07 13:54:29]
User884307 - Posts: 127
Hey guys, just been running 1959....the market is fast now (real time) and Sierra Chart for the first time ever slow as hell ... as slow as XTrader was years back when I switched over to SC.

1952 WORKS OK ..... I dont know what code your changing but its making SC run like a dying dog !!!

Please review your code ..... play back AND very slow in fast markets

(I am running latest i7 with 64gb ram and SSD drives ... so its not me!)
[2019-08-07 18:15:20]
User884307 - Posts: 127
Hi

Any updates on this situation?

thanks
[2019-08-07 18:45:30]
Sierra Chart Engineering - Posts: 75442
Regarding post #5, refer to:
https://www.sierrachart.com/index.php?page=doc/helpdetails30.html

Nothing has changed between versions in regards to performance. In general newer versions have higher performance over time.

But if you are using Bid and Ask Depth Bars study, refer to:
https://www.sierrachart.com/index.php?page=doc/StudiesReference.php&ID=213&Name=Bid_Ask_Depth_Bars#ImprovingPerformanceOfThisStudy

If you are trading CME markets we recommend using this data feed for better performance:
https://www.sierrachart.com/index.php?page=doc/DenaliExchangeDataFeed.php
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
Date Time Of Last Edit: 2019-08-07 18:46:36
[2019-08-07 19:08:34]
User884307 - Posts: 127
I am totally confused now.

version 1952 works perfectly with fast markets, playback etc etc Never had a problem with SC with regards being slow...in any way

I go to version 1959 and its terrible (im not exagerating, its like the old XTrader at market close) .... this is a few upgrades over a week or so 1952 ---> 1959+? Surely such a degredation of performance in such a sort period of updates is no acceptable? It worries me that you point me to computer minimum specs as though this is the problem? arrrrrgh!!!!

My computer is not a problem in this scenarion as mentioned in #5.

Also, the playback problem with 1959 onwards? has this been fixed ?

I have jumped over historic hurdles with issues but am i right in saying that performance is going to remain at this level?

Like i say something terrible has happened because v1952 works perfectly, even the playback works without any problems?

can you explain why 1952 works perfectly and a week or so later there's big problems?
[2019-08-08 06:42:27]
Sierra Chart Engineering - Posts: 75442
Whenever we get reports like this, it really is impossible from our perspective, to know what the issue is. And there is always some other explanation than what the users think. It is not like the newer versions are slower. That is definitively not true and we would never believe that because it makes no technical sense. And if you are using CQG, CQG market data processing is going to be more efficient with market depth now.

Make sure you have the Replay Mode set to Standard Replay:
https://www.sierrachart.com/index.php?page=doc/ReplayChart.html#ReplayMode

What is the replay speed?


Also, the playback problem with 1959 onwards? has this been fixed ?

We have not been able to reproduce a problem.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
Date Time Of Last Edit: 2019-08-08 06:52:50
[2019-08-08 06:52:15]
Sierra Chart Engineering - Posts: 75442
Actually, we know what the problem is. In your most recent post you are mentioning 1959 and there is a difference in the way that version works with timers. There is not any performance issue, but there are more frequent updates. This is talked about here:
https://www.sierrachart.com/SupportBoard.php?ThreadID=44268

However, the current version of Sierra Chart which is 1967, does not have this change until we have more time to improve upon it. So if you update to 1967 you will not notice any change.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
[2019-08-08 06:55:20]
User884307 - Posts: 127
I've always used Calculate at Every Tick/Trade up until Version 1952 with complete success.

Since v1959 this option stops working when you hit pause and then replay...
Standard replay is OK but not as accurate in my experience.
Can this option be fixed please to as it was before v1959.
I will monitor the slow performance issues also.
Thanks
[2019-08-08 07:08:43]
Sierra Chart Engineering - Posts: 75442
See post #10 above. We know what the problem is. The reason we did not catch on to this at first, is that these messages were interpreted within the context of what is the current version of Sierra Chart which does not have any issue like you are describing.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
[2019-08-08 10:13:36]
User884307 - Posts: 127
OK I've upgraded to 1971, "accurate trading system back test mode" & "calc at every tick/Trade" still don't work AFTER you press pause & then play again....Only "standard replay" works using pause & play....

I'll check out performance at market open of 1971 (hopefully as you say, all fixed with that aspect 🙏)
[2019-08-08 10:23:59]
Sierra Chart Engineering - Posts: 75442
We will look into the replay issue again.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
[2019-08-09 10:27:30]
Sierra Chart Engineering - Posts: 75442
We are unable to reproduce any replay issue like described in post #13.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
[2019-08-09 10:41:27]
User884307 - Posts: 127
I have transferred my charts across to a new install of SC v1972, still does it. Create new chart in new install and still does it.
The only thing that works as it should is standard replay.
Like I say, v1952 works completely correctly so there is obviously some changes that have effected this functionality, otherwise if it was me then v1952 wouldn't work either, would it?
Performance is OK though in latest version 👍
[2019-08-09 17:43:23]
Sierra Chart Engineering - Posts: 75442
Set your telephone number here:
https://www.sierrachart.com/UserControlPanel.php?page=ManageAccountInfo

Let us know when that is done and we will call you sometime after the close to look into this.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
[2019-08-09 19:56:06]
User884307 - Posts: 127
Hi will do over weekend if OK as now not good. Talk Monday if tomorrow?

Thankyou for your attention to this, I really appreciate it 🙏👍👍
[2019-08-10 23:22:07]
Sierra Chart Engineering - Posts: 75442
We can definitely look into it over this weekend. Let us know about Sunday.

And please set your telephone number or a Skype username.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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Date Time Of Last Edit: 2019-08-10 23:22:17
[2019-08-13 19:30:13]
User92573 - Posts: 110
Dear Support

I'm not sure if this is related but I'm noticing sync issues between different markets on playback - standard replay - even at just 360X.

Currently I have 4 different markets and identical the timeframes, 12 mins for example will be out of sync by an hour even after just 2 months of data replay. May not seem an issue but its important I keep them the same.

I have tried it with skip empty periods both checked and unchecked, just in case this was causing an issue but it's still occuring.

Is this to be expected? It wasnt an issue in the past.

Currently on V1971 32Bit and 28 charts in chartbook.

Many thanks
Date Time Of Last Edit: 2019-08-13 19:34:36
[2019-08-13 21:15:17]
Sierra Chart Engineering - Posts: 75442
There should not be any synchronization issues. Here is the relevant documentation for that:
https://www.sierrachart.com/index.php?page=doc/ReplayChart.html#AutomaticSkippingOfPeriodsWhereThereIsNoTradingAndSynchronization

You definitely need to keep Skip Empty Periods unchecked consistently during the replay.

But you are also replaying months of data, so the question is what are the symbols? It is also important to make sure there is no missing data in those charts.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.
Date Time Of Last Edit: 2019-08-13 21:20:15
[2019-08-13 22:06:29]
User92573 - Posts: 110
Thank you the documentation on replay is very useful and was my first source of reference.

The markets being replayed are GBPUSD; EURUSD; USDJPY; USDCAD and all charts and timeframes have ASCIL studies.

My understanding was that if I am not skipping empty periods and given that all of the data I'm using for this is 1 minute, then I'd assumed SC would maintain synchronisation across all markets and timeframes, irrespective of whether it was actually Futures, SPOT FX or anything else?

1) Just to be sure, is this the case, or is it likely I'll still lose synchronisation irrespective?

2) I'm not auto-trading, or using tick data so the documaentation suggests ther use of - accurate trading system back test mode - to maintain synchronisation is not necessary, in addition this setting causes an issue for me as I cannot watch the bars unfold. As stated in the - replay section - as it will jump bars. For example on a 3 minute chart it may jump from 15:39:00 to 16:03:00; making - accurate trading system back test mode - not suitable for visual playback..

Out of interest, when I replay using a specific - start date-time - I notice that USDCAD and EURUSD are almost immediately 1 bar ahead of the GBPUSD and USDJPY on the 3 min charts which grows as time elapses.

On the 12 min charts when paused the EURUSD and USDJPY are almost immediately 1 bar ahead of the GBPUSD and USDCAD which is not even consistent with the 3 min chart at start?

Certainly I'm a little confused by this and possibly missing something.

Many thanks.
Date Time Of Last Edit: 2019-08-14 08:19:22
[2019-08-14 09:42:07]
User92573 - Posts: 110
Update - additional issue noticed.
All Charts
Standard replay
Skip Empty Periods (not selected)
Speed 360

28 charts comprising 4 markets in chartbook; resource monitor low; ASCIL studies/indicators running in charts; not auto-trading; data start JAN 2012.

When charts go out of sync I pause and restart. Charts seem to re-align themselves. However, if I pause and go back << "To the next bar" one line of charts (7 for same symbol)go right back to the beginning of the data file 2007 with each showing just 1 bar at start of each of the 7 charts.

When I select play the 2007 charts begin to replay while the other 21 charts (3 markets) are frozen (waiting for catch I suppose) at 2012-01-25; the date when paused.

Another concern is that when paused the charts with the same market/symbol do not reflect the same price and are oftern few points out - even though I felt they were built from the same 1 minute data file? Concern here is that bars may form differently, during different replays, over the same data.

Grateful for your thoughts

Many thanks
Date Time Of Last Edit: 2019-08-14 10:31:51
[2019-08-21 21:31:22]
Sierra Chart Engineering - Posts: 75442
Out of interest, when I replay using a specific - start date-time - I notice that USDCAD and EURUSD are almost immediately 1 bar ahead of the GBPUSD and USDJPY on the 3 min charts which grows as time elapses.

On the 12 min charts when paused the EURUSD and USDJPY are almost immediately 1 bar ahead of the GBPUSD and USDCAD which is not even consistent with the 3 min chart at start?
What is the Replay speed? We will try to reproduce.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. If possible please keep your questions brief and to the point. Please be aware of support policy:
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If your question/request has been answered and you do not have anything further, then it is easiest for us if you do not reply again to say thank you.

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