On Sat, Jan 28, 2023 at 11:43 PM Damon Lei <danxiong...@gmail.com> wrote:
> Hi， > We tested the WasmSnapshot solution in the production environment. > 1. Tested with more than 500,000 users, no user feedback has been found so > far > 2. It takes 2 seconds to optimize the startup time. Before optimization, > the game startup takes about 10s. On Android, the optimization is 13.6%, > and the iOS optimization is 22.2% > > This solution works very well, and I want to document this solution on > Emscrpten's documentation, such as this “link > <https://emscripten.org/docs/optimizing/Optimizing-Code.html#unsafe-optimizations> > (Emscripten/OptimizingCode/UnsafeOptimize)” > (or some other documents), so that more people know that this method is > feasible. > > What do you think of this? > If you think this is something that could be upstreamed into emscripten itself, then maybe create PR to start adding support? if it's just a matter of documentation you technique then perhaps we could start by adding a wiki page here: https://github.com/emscripten-core/emscripten/wiki/_pages > Thanks, > 在2022年12月22日星期四 UTC+8 23:30:40<s...@google.com> 写道： > >> Hi Damon >> >> This sounds really great. When you say "Wasm Snapshot" are you talking >> about some tool that you wrote yourself or some existing tool such as >> wizer? Would you be interested in contributing this tool to emscripten, or >> perhaps some documentation on how to go about doing this? >> >> cheers, >> sam >> >> On Thu, Dec 22, 2022 at 7:23 AM Damon Lei <danxi...@gmail.com> wrote: >> >>> >>> Hi >>> >>> I am trying to use the Wasm Snapshot to reduce the startup time, and it >>> succeeded. Wasm Apps run correctly, reducing startup time by 20-50%. >>> >>> My job is to help developers export Unity games to webgl mode to run on >>> our App (WeChat in China). >>> Unfortunately, after exports, wasm callMain is very slow, taking an >>> average of 5 seconds. >>> >>> So I spent a few months experimenting with the Wasm Snapshot solution, >>> which means, take a snapshot of Wasm App during development. >>> At runtime, callMain is no longer executed, but a snapshot.data is >>> downloaded and restored. The snapshot.data includes Wasm Memory, FS, GL, >>> and other JS States. >>> At the same time, I will cut out the data in wasm and some resources of >>> Unity's res-bundle, because they are no longer needed. >>> >>> In the 5 Unity games tested, no problems were found. Startup >>> time-consuming optimization is considerable. >>> >>> The snapshot.data size is about 4MB after compression(brotli). >>> The optimization is about 2-5sec (20%-50%). See the end for specific >>> data. >>> >>> Wasm Snapshot is an awesome solution, and I want you to know that it >>> really works. >>> At the same time, I would like to know whether the startup is a common >>> problem? And can it be used as a new feature of Emscripten to benefit more >>> users? >>> >>> [image: 截屏2022-12-22 17.34.57.png] >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "emscripten-discuss" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to emscripten-disc...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/emscripten-discuss/cdaeda97-f40f-42ac-8194-2bb771d49aebn%40googlegroups.com >>> <https://groups.google.com/d/msgid/emscripten-discuss/cdaeda97-f40f-42ac-8194-2bb771d49aebn%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to emscripten-discuss+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/emscripten-discuss/47c58803-33fc-44d5-95ae-29f98e9b3dban%40googlegroups.com > <https://groups.google.com/d/msgid/emscripten-discuss/47c58803-33fc-44d5-95ae-29f98e9b3dban%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to emscripten-discuss+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/CAL_va2_pzWqy217ZxYkO4VWQJcfktn2em4QKqo6aeXTu4t7jtg%40mail.gmail.com.
