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> low performance and the enormous memory consumption That has not been what I've seen from it. People have made video editors and ported game into web pages.

> low performance and the enormous memory consumption That has not been what I've seen from it. People have made video editors and ported game into web pages. You make a lot of claims in this thread about speed and memory but don't back any of them up.

Rochus 6y ago
Here are some examples: https://www.qt.io/qt-examples-for-webassembly https://www.qt.io/qt-examples-for-webassembly ; some of them don't even start on my 32 bit machine because more than 2GB RAM would need to be allocated. EDIT: I'm using Firefox 78.0.2 on Linux i386.
- CyberDildonics 6y ago
  These load in about 1 second for me and everything is almost instant and fluid on firefox 80. The firefox process running them uses 284MB of memory.
  - Rochus 6y ago
    On which OS? Have you watched peak memory use, or is this steady state?
- wenc 6y ago
  Just tried the pizza shop example on my desktop. Linux x86-64 (i7 quad core, 8GB RAM, Firefox 80.0.1) FF memory usage: blank page = 285MB, peak = 839MB, steady-state = 340MB. Load time: ~6s wall clock time. Tried it with my Windows 10 Desktop too (i7 quad core, 32GB RAM, Firefox 80.0.1). FF memory usage: blank page = 215MB, peak = 1015MB, steady-state = 658MB. Load time: ~3s wall clock time. Once loaded, the UI was very responsive.
  - Rochus 6y ago
    Thanks for the measurements. That's much faster indeed than on my laptop and even quite decent (besides the peak memory use). Compared to the C++ native version of similar apps on my Linux i386 and Windows x86 this is about factor 10/20 (Linux/Windows) more RAM in steady state and factor 25/30 (Linux/Windows) in peak. Start time of the C++ apps (not QML) is factor 6/3 (Linux/Windows) slower. Btw. I noticed that on my machine memory use is higher on Chromium and performance even worse than with Firefox. So it seems to depend on browser type/version, and someone in this thread said that there is no support for Safari.

Rochus 6y ago

Here are some examples: https://www.qt.io/qt-examples-for-webassembly https://www.qt.io/qt-examples-for-webassembly ; some of them don't even start on my 32 bit machine because more than 2GB RAM would need to be allocated. EDIT: I'm using Firefox 78.0.2 on Linux i386.

CyberDildonics 6y ago
These load in about 1 second for me and everything is almost instant and fluid on firefox 80. The firefox process running them uses 284MB of memory.
- Rochus 6y ago
  On which OS? Have you watched peak memory use, or is this steady state?
wenc 6y ago
Just tried the pizza shop example on my desktop. Linux x86-64 (i7 quad core, 8GB RAM, Firefox 80.0.1) FF memory usage: blank page = 285MB, peak = 839MB, steady-state = 340MB. Load time: ~6s wall clock time. Tried it with my Windows 10 Desktop too (i7 quad core, 32GB RAM, Firefox 80.0.1). FF memory usage: blank page = 215MB, peak = 1015MB, steady-state = 658MB. Load time: ~3s wall clock time. Once loaded, the UI was very responsive.
- Rochus 6y ago
  Thanks for the measurements. That's much faster indeed than on my laptop and even quite decent (besides the peak memory use). Compared to the C++ native version of similar apps on my Linux i386 and Windows x86 this is about factor 10/20 (Linux/Windows) more RAM in steady state and factor 25/30 (Linux/Windows) in peak. Start time of the C++ apps (not QML) is factor 6/3 (Linux/Windows) slower. Btw. I noticed that on my machine memory use is higher on Chromium and performance even worse than with Firefox. So it seems to depend on browser type/version, and someone in this thread said that there is no support for Safari.