I'm trying to get an idea about the throughput speed of Cordova's WebView-Native bridge. For this I will send a Uint8Array of a determined size. However, I would have expected the throughput speed of this bridge to be higher.
Testing on a iPhone 4s and Cordova 5.4.1 the throughput speed is ~0.8mb/s. This feels low to me (based on some experience with Cordva apps, but this is of course subjective).
Question: is this realistic?
I think that without posting my code this questions show no enough info, therefore I've attached my code:
My JavaScript code:
var success = function(endTime) { //endTime is unix epoch time (ms) var time_df = endTime - beginTime results.push(time_df) numTests += 1; sendMessage() } var sendMessage = function() { // execute test 30 times if (numTests < 30) { beginTime = +new Date() bench.send(payload, success, fail) } else { console.log('results', results) } } var createPayload = function(size) { size = size * 1000; var bufView = new Uint8Array(size); for (var i = 0; i < size; ++i) { bufView[i] = i % 20; } return bufView.buffer; } var startTest = function() { // create payload of 500kb payload = createPayload(500) sendMessage() } My Objective-C code. Code does basicly one thing: return unix epoch time after payload is received.
(void)send:(CDVInvokedUrlCommand*)command { NSTimeInterval time = ([[NSDate date] timeIntervalSince1970]); // returned as a double long digits = (long)time; // this is the first 10 digits int decimalDigits = (int)(fmod(time, 1) * 1000); // this will get the 3 missing digits long timestamp = (digits * 1000) + decimalDigits; NSString *timestampString = [NSString stringWithFormat:@"%ld%d",digits ,decimalDigits]; NSString* callbackId = [command callbackId]; CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:timestampString]; [self success:result callbackId:callbackId]; } 
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