> ## Documentation Index > Fetch the complete documentation index at: https://docs.mixpeek.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Analyze Bottlenecks > Identify performance bottlenecks. Analyzes profiling data to identify the biggest bottlenecks, ranked by total time spent. **Use Cases:** - Find what's slowing down your pipelines - Prioritize optimization efforts - Monitor bottleneck trends **Ranking:** - Sorted by total time spent (sum across all executions) - Shows percentage of total execution time - Includes execution count and average time **Example:** ```bash GET /v1/analytics/performance/engine/bottlenecks?hours=24&limit=10 ``` ## OpenAPI ````yaml get /v1/analytics/performance/engine/bottlenecks openapi: 3.1.0 info: title: Mixpeek API description: >- This is the Mixpeek API, providing access to various endpoints for data processing and retrieval. termsOfService: https://mixpeek.com/terms contact: name: Mixpeek Support url: https://mixpeek.com/contact email: info@mixpeek.com version: '0.82' servers: - url: https://api.mixpeek.com description: Production security: [] paths: /v1/analytics/performance/engine/bottlenecks: get: tags: - Analytics - Analytics - Performance summary: Analyze Bottlenecks description: |- Identify performance bottlenecks. Analyzes profiling data to identify the biggest bottlenecks, ranked by total time spent. **Use Cases:** - Find what's slowing down your pipelines - Prioritize optimization efforts - Monitor bottleneck trends **Ranking:** - Sorted by total time spent (sum across all executions) - Shows percentage of total execution time - Includes execution count and average time **Example:** ```bash GET /v1/analytics/performance/engine/bottlenecks?hours=24&limit=10 ``` operationId: analyze_bottlenecks_v1_analytics_performance_engine_bottlenecks_get parameters: - name: hours in: query required: false schema: type: integer maximum: 168 minimum: 1 description: Hours of history default: 24 title: Hours description: Hours of history - name: limit in: query required: false schema: type: integer maximum: 50 minimum: 1 description: Number of bottlenecks to return default: 10 title: Limit description: Number of bottlenecks to return responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/BottleneckResponse' '400': description: Bad Request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: Forbidden content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Not Found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: BottleneckResponse: properties: time_range: $ref: '#/components/schemas/api__analytics__models__TimeRange' description: Time range of the analysis bottlenecks: items: $ref: '#/components/schemas/BottleneckAnalysis' type: array title: Bottlenecks description: Ranked list of bottlenecks total_time_ms: type: number title: Total Time Ms description: Total execution time across all components type: object required: - time_range - bottlenecks - total_time_ms title: BottleneckResponse description: Response for bottleneck analysis. ErrorResponse: properties: success: type: boolean title: Success description: Always false for error responses default: false status: type: integer title: Status description: HTTP status code for this error error: $ref: '#/components/schemas/ErrorDetail' description: Error details payload type: object required: - status - error title: ErrorResponse description: Error response model. examples: - error: details: id: ns_123 resource: namespace message: Namespace not found type: NotFoundError status: 404 success: false HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError api__analytics__models__TimeRange: properties: start: type: string format: date-time title: Start description: Start time (UTC) end: type: string format: date-time title: End description: End time (UTC) type: object required: - start - end title: TimeRange description: Time range for analytics queries. BottleneckAnalysis: properties: stage_name: type: string title: Stage Name description: Stage name component: type: string title: Component description: Component execution_count: type: integer title: Execution Count description: Number of executions total_time_ms: type: number title: Total Time Ms description: Total time spent avg_time_ms: type: number title: Avg Time Ms description: Average time per execution pct_of_total: type: number title: Pct Of Total description: Percentage of total execution time rank: type: integer title: Rank description: Bottleneck ranking (1 = worst) type: object required: - stage_name - component - execution_count - total_time_ms - avg_time_ms - pct_of_total - rank title: BottleneckAnalysis description: Bottleneck analysis result. ErrorDetail: properties: message: type: string title: Message description: Human-readable error message type: type: string title: Type description: Stable error type identifier (machine-readable) code: anyOf: - type: string - type: 'null' title: Code description: >- Fine-grained error code for programmatic handling (e.g., namespace_name_taken, feature_extractor_not_found). Present only when consumers may need to branch on a specific error condition. details: anyOf: - additionalProperties: true type: object - type: 'null' title: Details description: >- Optional structured details to help debugging (validation errors, IDs, etc.) type: object required: - message - type title: ErrorDetail description: Error detail model. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError ````