enhancement: support for slow connection

[codecov-commenter]

Codecov Report

Base: 45.84% // Head: 45.66% // Decreases project coverage by -0.17% :warning:

Coverage data is based on head (5512913) compared to base (858d905). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #147 +/- ## ========================================== - Coverage 45.84% 45.66% -0.18% ========================================== Files 22 22 Lines 1719 1719 ========================================== - Hits 788 785 -3 - Misses 843 846 +3 Partials 88 88 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `45.66% <ø> (-0.18%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gobench-io#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://codecov.io/gh/gobench-io/gobench/pull/147?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gobench-io) | Coverage Δ | | |---|---|---| | [executor/executor.go](https://codecov.io/gh/gobench-io/gobench/pull/147/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gobench-io#diff-ZXhlY3V0b3IvZXhlY3V0b3IuZ28=) | `40.88% <0.00%> (-1.66%)` | :arrow_down: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gobench-io). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=gobench-io)

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