estimation - RESTful API Transaction Costs -


i've been tasked coming per transaction/request cost use in pricing api developing , wondering if doing correct or if there better way?!

our api runs on aws using variety of services (rds, ec2, elb, s3 etc...). need come baseline can work from. example, working on following assumption...

aws monthly cost estimate: 500

for amount performance tested system , can handle 1000 concurrent requests per second (per apache bench). there approximately 2.5 million seconds in month. 2.5m * 1000 requests = 2500000000 requests per month making assumption full load (1000 requests) used per second entire month equate to...

500 / 250000000 = 0.0000002 per transaction/request

is valid analysis , figure use? or better way of estimating type of cost?

thanks!


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