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docs/parca-agent-design.md

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@@ -28,7 +28,7 @@ The way BPF programs communicate with user-space uses BPF maps. The Parca Agent
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Parca Agent reads all data every 10 seconds. The data that is read from the BPF maps gets processed and then purged to reset for the next iteration.
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<p align="center">
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<img alt="Parca Agent BPF program" src="https://docs.google.com/drawings/d/1Xq3VpXzO9wo2k91ZQKVBzzo4axszTA0SCrzRSnosNi4/export/svg" alt="drawing" width="600" />
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<img alt="Parca Agent BPF program" src="https://docs.google.com/drawings/d/1NW9bP6jJ3i3CTymuuKEOmTfcQGKU-pn1qcWMUk6S3x8/export/svg" alt="drawing" width="600" />
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</p>
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### CPU sampling frequency

docs/parca.md

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## Architecture
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![Parca Architecture Overview](https://docs.google.com/drawings/d/10VH49EgWlNF1wONKroQb5x3Q1Rkrnsc1BikTUvJNFIE/export/svg)
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<p align="center">
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<img alt="Parca Architecture Overview" src="https://docs.google.com/drawings/d/1EAyMTbt-Ajf0KIzAFqjQdZNzjUnrm3NCH9922aOS4pI/export/svg" alt="drawing" width="600" />
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</p>
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Parca has a purpose built storage, which receives writes either from a pull mechanism that performs HTTP requests, or through a push mechanism via the gRPC API. Parca features two gRPC APIs for pushing data, one for the profiles themselves and one for [debuginfo](https://en.wikipedia.org/wiki/DWARF) metadata. Parca Agent uses the two APIs to minimize the amount of data transferred, it checks that metadata is uploaded only once, and otherwise only the measures statistics are sent.
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