public async Task SetLoad(LoadTestStepContext ctx)
{
var lambdaRequestCounts = JourneyCalcuations.JourneyCounts(
_provisionedConcucrrency,
ctx.RequestsPerSecond,
ctx.Duration.TotalSeconds,
12);
var publishRequests = new PublishRequest[lambdaRequestCounts.Count];
for (var i = 0; i < lambdaRequestCounts.Count; i++)
{
var count = lambdaRequestCounts[i];
publishRequests[i] = new PublishRequest
{
TopicArn = _controlPlaneTopicArn,
Message = JsonConvert.SerializeObject(new LambdaRequest
{
RequestCount = count,
Journeys = await ctx.StoryTeller(count),
Duration = ctx.Duration
})
};
}
await ctx.PublishAsync(publishRequests, ctx.Duration, ctx.Cancel);
}
public void less_than_min_journeys_execution_with_leftovers()
{
// 1 request per second for 70 seconds, 60 requests, over max 100 invocation, min requests of 12 per minute
// should do 70 / 12 = 5 journeys with 12 requests and 1 request with 10 journeys
var result = JourneyCalcuations.JourneyCounts(100, 1, 70, 12);
result.Sum().ShouldBe(70);
result.ShouldBe(new[] { 12, 12, 12, 12, 12, 10 });
}
public void less_than_min_journeys_execution()
{
// 1 request per second for 70 seconds, 70 requests, over max 100 invocation, min requests of 12 per minute
// should do 60 / 12 = 5 journeys with 12 requests
var result = JourneyCalcuations.JourneyCounts(100, 1, 60, 12);
result.Sum().ShouldBe(60);
result.ShouldBe(Enumerable.Repeat(12, 5));
}
public void rounding()
{
// 5 rx/s for 60s = 300 requests
// 300 / 12 = 25 executions
var result = JourneyCalcuations.JourneyCounts(600, 5, 60, 12);
result.Sum().ShouldBe(300);
result.Count().ShouldBe(25);
}
public void double_provisioned_execution()
{
// we want double the number of 50 provisioned, thats 100 execution
// 12 journeys pre execution, thats 1200 total journeys
// over 60 seconds that's 20rps
var result = JourneyCalcuations.JourneyCounts(50, 20, 60, 12);
result.Sum().ShouldBe(1200);
result.Count().ShouldBe(50);
}