Http Client benchmark

[TingDaoK]

• Initial build of our http client benchmark
• Test using a local host, that using our http client to connect to the host and collect how many requests are made during a certain time.
• To run:
  • start the python local host: https://github.com/awslabs/aws-c-http/tree/main/tests/py_localhost
  • build aws-c-http with AWS_BUILD_CANARY=ON cmake flag
  • cd build/bin/canary && ./canary

ISSUE FOUND & FIXED

• We update the window for connection for each data frame received, which really slows us down for frequent small chunk of data frames receiving.

  • We fixed it by only update the connection window whenever it drops to 50% of the max.
  • Same issue may happens to streams windows
  • Or the padding of the connection window.

• Providing tiny increments to flow control in WINDOW_UPDATE frames can cause a sender to generate a large number of DATA frames. from here

  • Is the client's responsibility to make sure not doing this? Even if the user do manual window update and doing small window update?

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[lgtm-com[bot]]

This pull request introduces 1 alert when merging 4cd733889440474ee715c420f2c1f04c3057d343 into f81ee942fa9b149711d90b4a3f3af5c946151d16 - view on LGTM.com

new alerts:

• 1 for Variable defined multiple times

[lgtm-com[bot]]

This pull request introduces 1 alert when merging f445de008bceb670633900bf7eb5c3be73232466 into f81ee942fa9b149711d90b4a3f3af5c946151d16 - view on LGTM.com

new alerts:

• 1 for Variable defined multiple times

[lgtm-com[bot]]

This pull request introduces 1 alert when merging f86a9f7467f9efe8f220094324792a6183eca2b4 into f81ee942fa9b149711d90b4a3f3af5c946151d16 - view on LGTM.com

new alerts:

• 1 for Variable defined multiple times

[lgtm-com[bot]]

This pull request introduces 1 alert when merging ca0c7c55d3060b1e68dc88dc7b963ec47e2392ba into f81ee942fa9b149711d90b4a3f3af5c946151d16 - view on LGTM.com

new alerts:

• 1 for Variable defined multiple times