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Add benchmarks for Queue::pop/add_used, DescriptorChain::next_descriptor and Request::parse(from virtio block)

Reason

We want to track most used methods in device emulation to see performance gains/regressions.

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@ShadowCurse ShadowCurse self-assigned this Sep 5, 2024
@ShadowCurse ShadowCurse added Status: Awaiting review Indicates that a pull request is ready to be reviewed Type: Enhancement Indicates new feature requests Type: Performance labels Sep 5, 2024
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codecov bot commented Sep 5, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.34%. Comparing base (d6bbb22) to head (df4cd12).
Report is 2 commits behind head on main.

Additional details and impacted files
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##             main    #4783   +/-   ##
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  Files         249      249           
  Lines       27460    27460           
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  Hits        23160    23160           
  Misses       4300     4300           
Flag Coverage Δ
5.10-c5n.metal 84.56% <ø> (ø)
5.10-m5n.metal 84.55% <ø> (ø)
5.10-m6a.metal 83.83% <ø> (-0.01%) ⬇️
5.10-m6g.metal 80.91% <ø> (ø)
5.10-m6i.metal 84.54% <ø> (ø)
5.10-m7g.metal 80.91% <ø> (ø)
6.1-c5n.metal 84.56% <ø> (ø)
6.1-m5n.metal 84.54% <ø> (-0.01%) ⬇️
6.1-m6a.metal 83.84% <ø> (ø)
6.1-m6g.metal 80.91% <ø> (ø)
6.1-m6i.metal 84.54% <ø> (-0.01%) ⬇️
6.1-m7g.metal 80.91% <ø> (ø)

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Mh, do we really need to be so many of these? For example, the various "pop" ones have perfectly linearly correlated results on my machine.

Add benchmarks for `Queue` and `DesciptorChain` objects.
This will allows us to see performance difference with
changes introduced to the queue in the future.

Signed-off-by: Egor Lazarchuk <[email protected]>
bchalios
bchalios previously approved these changes Sep 6, 2024
Add bench for `Request::parse` method. This will
allow us to track performance of this method.

Signed-off-by: Egor Lazarchuk <[email protected]>
@ShadowCurse ShadowCurse merged commit 50ad94b into firecracker-microvm:main Sep 6, 2024
6 of 7 checks passed
@ShadowCurse ShadowCurse deleted the add_benches branch September 6, 2024 11:07
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3 participants