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emoacht / SnowyImageCopy

A Windows desktop app to copy images from FlashAir by a wireless connection
https://www.microsoft.com/store/apps/9MTLPNGRW85L
MIT License
32 stars 14 forks source link

Snowy plus 3.0.1 is slower than Snowy 1.9.0 #77

Closed dentphoto closed 2 years ago

dentphoto commented 2 years ago

Under the environment of same camera / same card setting / same network, Flashair card scan speed and file copy speed of Snowy plus 3.0.1... It is considerably slower than that of Snow 1.9.0.

Why is this?

I will send you a movie if necessary.

emoacht commented 2 years ago

I see. The code base of 3.x is almost identical with 2.x. 1.x is too old. .NET 6.0 might affect the performance. Could you try the attached? It is a test version of .NET Framework 4.8. It does not include support for video file. [removed]

dentphoto commented 2 years ago

Thanks for the quick response. Scan speed and copy speed have been restored with .Net48.^^

[Performance difference] Snowy301.Net48 = Snowy190 > Snowy plus 3.0.1

emoacht commented 2 years ago

Thanks for the testing. Then, enabling "Handle video file" in 3.x makes any difference?

dentphoto commented 2 years ago

Option [Handle video file] ON or OFF seems not to affect the performance of card scan & copy.

emoacht commented 2 years ago

Thanks for the confirmation. One more thing. Could you show the comparison between the version of .NET 6.0 (3.0.1) and that of .NET Framework 4.8 (3.0.2, as attached and has identical functionality with that of .NET 6.0) by concrete number (e.g. time length to copy the same files from FlashAir) with information on FlashAir version and your PC's spec and OS version? [removed]

dentphoto commented 2 years ago

[My Flashair Card] Flashair W-04 16G Fw 4.00.04

[PC spec] Edition : Windows 10 Home Ver : 21H1 OS build : 19043.1466

[Snowy 3.0.2 Net48 vs Snowy 3.0.1 Net60] https://youtu.be/_qoh-JF25XQ 3.0.1 Net60 is slow in checking and thumbnailing existing files when the camera is turned on. Likewise, the recognition of real-time captured files is very slow, and as a result, the process feels slow. Once recognized, there does not seem to be much difference in the copy speed itself between the two. Crucially, it's clear that Net60 is noticeably slower in card scanning and thumbnailing...

emoacht commented 2 years ago

Thanks for quick response. To identify which part of the sequrence to access FlashAir takes longer time, could you enable /recordlog option and post the records so that I can compare those of .NET 6.0 and .NET Framework 4.8?

dentphoto commented 2 years ago

Net60 download.log

Net48 download.log

emoacht commented 2 years ago

Thanks. Could you provide your PC's hardward spec (e.g. CPU, memory)?

dentphoto commented 2 years ago

hw

emoacht commented 2 years ago

Thanks. Your PC seems to be powerful enough. The record of .NET 6.0 shows each step of accessing FlashAir is slow. I have never heard about it and there would be no clue. The another differenece I can think of is the platform (x86 or x64). So, could you try the version of .NET 5.0 for x86 (3.0.3, as shown below) and the post the record as well? [removed]

dentphoto commented 2 years ago

3.0.3 x86 has similar card scanning and thumbnailing performance to 3.0.1Net60. Still, 3.0.2Net48 performs much better. https://youtu.be/cWgPamTrRFY

3.0.3 x86 download.log

emoacht commented 2 years ago

Thanks for the log. I have no clue on this slow response at this moment.

emoacht commented 2 years ago

As I could not figure out the root cause of this slow response, I decided to release both .NET 6.0 and .NET Framework 4.8 versions for minor update. This issue is now closed. To continue the discussion, please post in #75