大文件局域网下载速度很慢

[mostcute]

描述BUG

大文件下载速度很慢，大约500KB-800KB/s

预期在网速没问题的情况下 至少10M/s 吧

复现步骤

期望结果

实际结果

截图

设备

更多信息

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Title: Local area network download speed for large files is very slow

DESCRIPTION BUG

The download speed of large files is very slow, about 500KB-800KB/s

It is expected to be at least 10M/s if the network speed is okay.

Steps to reproduce

Desired result

actual results

screenshot

equipment

More information

[mostcute]

[lollipopkit]

可能是历史遗留原因造成的，麻烦下载测试

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It may be caused by historical reasons, trouble download test

[mostcute]

你把1Mbuffer改成10M 我昨天已经下载试过了

会略快一点点，但还是离预期差很多

[mostcute]

有什么想法吗

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Any ideas?

[mostcute]

单核性能问题吗，这样手机端好像没法简单提升了

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Is there a single-core performance problem? It seems that the mobile phone cannot be easily improved.

[lollipopkit]

估计是

• 单核性能瓶颈
• SFTP 的 dart 实现性能不佳

解决方法

• 从手机端：文件分片 + 多线程下载（难）
• 从服务器端：提供 web 接口，换https（易）

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Guess so

• Single-core performance bottleneck
• dart implementation of SFTP has poor performance

Solution

• From the mobile phone: file fragmentation + multi-threaded download (difficult)
• From the server side: provide web interface, change to https (easy)

[mostcute]

服务端要求软件实现加部署加新端口开放，不太现实，还是将就用吧

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The server requires additional deployment of software and opening of new ports, which is not realistic, so just make do with it.

[mostcute]

还是实现的问题，我在电脑windows上进行测试，也只有1M/s的速度

[wc7086]

估计是

• 单核性能瓶颈
• SFTP 的 dart 实现性能不佳

已经基本可以确定是 SFTP 的 dart 实现性能不佳了，要不要考虑用 golang 的 SFTP 实现？

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Probably

• Single-core performance bottleneck
• dart implementation of SFTP has poor performance

It is almost certain that the dart implementation of SFTP has poor performance. Should we consider using golang’s SFTP implementation?

[lollipopkit]

估计是

• 单核性能瓶颈
• SFTP 的 dart 实现性能不佳

已经基本可以确定是 SFTP 的 dart 实现性能不佳了，要不要考虑用 golang 的 SFTP 实现？

可以试试，但没用过ffi，所以不太确定能否实现

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Probably

• Single-core performance bottleneck
• dart implementation of SFTP has poor performance

It is almost certain that the dart implementation of SFTP has poor performance. Should we consider using golang’s SFTP implementation?

You can try it, but I have never used ffi, so I am not sure whether it can be achieved.