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Optimize CPU usage when creating short connections frequently #473

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djshow832 opened this issue Feb 7, 2024 · 0 comments

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djshow832 commented Feb 7, 2024 •

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When the client creates and destroys 300 connections per second, the CPU usage of TiProxy is up to 30%.

The main overhead is dialing the backend and forwarding messages during handshake. We may need a connection multiplex to optimize it.

However, we can do some minor optimizations without touching the architecture:

Reuse memory in bufio.NewReaderSize(), bufio.NewWriterSize(), and readOnePacket.
Save on-stack memory to avoid allocating a new stack in handshakeFirstTime.

The overall frame graph:

Allocate duplicate memory:

The text was updated successfully, but these errors were encountered:

djshow832 added the enhancement label

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