There are some existing hooks, like Module.onRuntimeInitialized which you can start a timer in. See also the BENCHMARK option (search in postamble.js), which could perhaps be improved.
On Thu, Feb 15, 2018 at 6:12 PM, awt <[email protected]> wrote: > Thanks for your reply Alon :) > > However, I would like those calls to be in the code permanently so that I > can collect startup data even when I'm in production. It seems that I would > need to manually edit preamble.js. As far as possible, I hope to keep > upstream compatibility with the official repo. > > Is there a way for me to override specific functions in preamble.js > without having to edit the latter? e.g. provide a separate JS file in the > --pre-js build flag? > > On Friday, February 16, 2018 at 3:16:01 AM UTC+8, Alon Zakai wrote: >> >> Browser profilers and network monitors could help see most of those >> things, I think. Otherwise, yeah, Date.now() can be used for others, it >> should show up in the console even though it's in a worker. >> >> On Thu, Feb 15, 2018 at 2:05 AM, awt <[email protected]> wrote: >> >>> Hi, >>> >>> I would like to profile the startup time of my application which uses >>> proxy-to-worker. My idea is to measure the time taken to download the wasm >>> binary, instantiate it as well as the time taken to run the global >>> constructor functions. However, the startup code is embedded in preamble.js >>> so is there an easy way to inject my measurement calls into the startup >>> code? e.g. Date.now() at the relevant places? >>> >>> -- >>> 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 [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
