New eBPF tool reveals hidden AWS network costs by attributing data transfers to workloads

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A significant portion of AWS costs for Kubernetes clusters is often hidden within broad network data transfer charges. Traditional tools like AWS Cost Explorer show the total bill but cannot attribute these costs to specific pods, teams, or applications. By using eBPF-based instrumentation, engineers can now track bytes at the kernel level and enrich the data with Kubernetes metadata. This method allows for precise cost attribution to individual workloads and communication pairs. The initial deployment of this tool quickly identified concrete cost-saving opportunities that were previously invisible.

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