⚡ Optimize JSON serialization in simple_seismic_server.py

[Igor Holt (igor-holt)]

💡 What: Replaced indent=2 with separators=(',', ':') in json.dumps() in simple_seismic_server.py. Added explicit charset=utf-8 to the Content-Type header and encode('utf-8') to the response body string serialization.
🎯 Why: To reduce unnecessary CPU overhead and network payload size spent formatting indented JSON strings with whitespace for programmatic API responses.
📊 Measured Improvement:

• Speedup: ~7.05x faster serialization (timeit benchmark baseline of ~4.92s vs ~0.69s).
• Size reduction: 16.4% smaller payload (256 bytes down to 214 bytes for the benchmarked data block).

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PR created automatically by Jules for task 10062608831710019575 started by Igor Holt (@igor-holt)

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Rooviewer   See task

Review complete; no issues found with the compact JSON serialization change.

• No issues flagged

_{Mention Roomote (@roomote) in a comment to request specific changes to this pull request or fix all unresolved issues.}

[gemini-code-assist]

Code Review

This pull request updates the send_json method in simple_seismic_server.py to explicitly specify UTF-8 encoding in the Content-Type header and the byte encoding process. Feedback indicates that the charset=utf-8 parameter is redundant for the application/json media type according to RFC 8259 and should be removed. Additionally, it is recommended to include a Content-Length header to support persistent connections and to use ensure_ascii=False in json.dumps to improve serialization efficiency and reduce payload size.

[gemini-code-assist]

According to RFC 8259, the application/json media type does not define a charset parameter. JSON is defined to be UTF-8 by default, so adding this parameter is redundant and technically non-standard.

Additionally, for a performance-oriented API, consider calculating the response body length and providing a Content-Length header. This enables HTTP persistent connections (Keep-Alive), which can significantly reduce latency for subsequent requests by avoiding the overhead of repeated TCP/TLS handshakes.

Suggested change

	self.send_header('Content-Type', 'application/json; charset=utf-8')
	self.send_header('Content-Type', 'application/json')

[gemini-code-assist]

To further optimize for both serialization speed and payload size, consider adding ensure_ascii=False to the json.dumps call. Since the output is explicitly encoded as UTF-8, this avoids the unnecessary CPU overhead of escaping non-ASCII characters into Unicode escape sequences (e.g., \uXXXX), which is the default behavior. This is particularly beneficial if the seismic data or logs contain any non-ASCII symbols.

Suggested change

	self.wfile.write(json.dumps(data, separators=(',', ':')).encode('utf-8'))
	self.wfile.write(json.dumps(data, separators=(',', ':'), ensure_ascii=False).encode('utf-8'))