2-3 secs Delay when SqlRecord is Executing
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wrote on 26 Jan 2017, 20:52 last edited by
I have my threads running apart from this. this happens when i try to insert a record, it blocks all threads as well and it takes 5 secs to come back from exec()
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- What is the current size ? Also, you plan to work on sqlite files in the TeraByte size ?
- What are you using as mass storage device ? SSD ? Mechanical hard drive ? etc.
- What speed ? Architecture ?
wrote on 26 Jan 2017, 20:57 last edited by- It is a fresh database of 20 to 30 KB. and we limited the size to some 300 to 400 MB file.
- Hard drive with 256 MB.
- 1GHz arm processor
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What do the other threads do when you are blocking them before writing the record ?
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wrote on 26 Jan 2017, 21:08 last edited by
The other thread shud have the serial communication that interacts with the other module.Even that is blocked during that time. Does exec() function runs in loop until it saves all the records. ?
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wrote on 26 Jan 2017, 21:19 last edited by
There are 2 threads one is main and other is communication thread. So database manager is a member of main thread. So when comm thread emits a signal, it is caught in main thread and the records are inserted into database. Thats how it goes for now
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Are you doing anything heavy in the GUI thread ?
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wrote on 26 Jan 2017, 21:46 last edited by
Nope..Onr thing i dont understand is only at that point (when exec() is called ) alone i have that lag. If i just comment that , it works perfect.
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Nothing else is accessing that database ? Even an external process ?
How is insertHealthStatusDetails called ?
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wrote on 26 Jan 2017, 22:28 last edited by
So to answer all the questions...Here i go sir.
I have created a test app for inserting a record into database. I compiled for device and i ran on that and it gives me same results.Hence i am not worried about all the processes and threads for now.
Am i correct ? -
Looks like there's something else at play.
I'd check with a profiler to see where's the bottleneck.
17/17