encoding/json is quite old and not particularly fast. There are some other implementations around which use code generation rather than reflection, and which claim to give a speedup of 3x or meore
I would try one of them: https://github.com/mailru/easyjson or https://github.com/pquerna/ffjson On Tuesday, 28 April 2020 17:49:08 UTC+1, Sarath Prabath Redlapalli Jaya wrote: > > req := &mystruct{} > json.NewDecoder(r.Body).Decode(req) > > > We've instrument the above code block and reading request body bytes is > taking very long i.e., upto 5 secs sometimes reaching upto 20 seconds at > the throughput of ~4-5K RPM > > The Request Body Size Metrics are as follows > > Average: 73190 Bytes > 90th percentile: 170862 Bytes > 99th percentile: 467638 Bytes > > Tried ioutil.ReadAll too. But, the read time is same. We're not sure why > it's so very slow on production with HIGH BANDWIDTH Network line. > > Also, there are 5% of errors in this API with following errors while > decoding json data > > 1. unexpected EOF > 2. Error in decoding request: read tcp 127.0.0.1:8080->127.0.0.1:48896: > i/o timeout > > We're using Kubernetes with Istio 1.0.5 on GCP. These errors are probably > from Envoy Sidecar, but since the Envoy acts as a reverse proxy, not sure > why we can get EOF or Timeout Errors since end user connection terminates > at proxy itself. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/65271a8e-ee33-4d9f-9eec-8a4f9c53fc99%40googlegroups.com.
