vhive-serverless/invitro
Nov 2024 – Mar 2025
3 Months active
Languages Used
CGoMarkdownPythonShellYAML
Technical Skills
Algorithm DesignAlgorithm ImplementationBackend DevelopmentBug FixBug FixingCI/CD
Lazar Cvetković
PROFILE
Lazar Cvetković
Lazar Cvetkovic contributed to the vhive-serverless/invitro repository by developing and refining serverless load testing and performance tooling. He implemented features such as RPS mode, payload size control, and per-minute event monitoring, enhancing the realism and flexibility of workload simulation. Using Go and Python, Lazar improved CI/CD reliability by upgrading GitHub Actions runners and optimizing test environments. He addressed critical bugs in YAMLPath handling and warmup duration logic, ensuring accurate configuration and reporting. His work demonstrated depth in backend development, concurrency, and DevOps, resulting in a more modular, observable, and production-ready system for scalable serverless experimentation.
Overall Statistics
Feature vs Bugs
59%Features
Repository Contributions
39Total
Bugs
12
Commits
39
Features
17
Lines of code
4,596
Activity Months3
Your Network
10 people
Work History
March 2025
2 Commits • 1 Features
Mar 1, 2025Month: 2025-03 | Repository: vhive-serverless/invitro Key features delivered: - CI/CD Infrastructure Upgrade: Upgraded GitHub Actions runners to Ubuntu 24.04, adjusted CI environment for pip, and implemented minor environment variable configuration for unit tests to improve stability and consistency of test runs. Major bugs fixed: - Knative RPS YAMLPath Handling Bug Fix: Corrected parsing and passing of YAMLPath to the RPS function generator so the service YAML specification is properly utilized and YAMLPath isn’t removed or mislogged. Overall impact and accomplishments: - Improved CI reliability and release readiness for the invitro service, enabling faster feedback loops and more predictable deployments. The combined CI/CD upgrade and YAMLPath bug fix reduce build failures and ensure accurate service configuration in production-like environments. Technologies/skills demonstrated: - GitHub Actions / CI pipeline automation, Ubuntu 24.04, Python/pip environment management, YAMLPath parsing, Knative RPS integration, and general DevOps best practices.
2 Commits • 1 Features
Mar 1, 2025Month: 2025-03 | Repository: vhive-serverless/invitro Key features delivered: - CI/CD Infrastructure Upgrade: Upgraded GitHub Actions runners to Ubuntu 24.04, adjusted CI environment for pip, and implemented minor environment variable configuration for unit tests to improve stability and consistency of test runs. Major bugs fixed: - Knative RPS YAMLPath Handling Bug Fix: Corrected parsing and passing of YAMLPath to the RPS function generator so the service YAML specification is properly utilized and YAMLPath isn’t removed or mislogged. Overall impact and accomplishments: - Improved CI reliability and release readiness for the invitro service, enabling faster feedback loops and more predictable deployments. The combined CI/CD upgrade and YAMLPath bug fix reduce build failures and ensure accurate service configuration in production-like environments. Technologies/skills demonstrated: - GitHub Actions / CI pipeline automation, Ubuntu 24.04, Python/pip environment management, YAMLPath parsing, Knative RPS integration, and general DevOps best practices.
March 2025
December 2024
4 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for vhive-serverless/invitro. Delivered load-testing realism and API invocation versatility, fixed a critical warmup bug, and reinforced performance reporting accuracy. Key contributions centered on RPS payload sizing, Dirigent POST support, and warmup duration corrections across RPS and trace driver experiments.
December 2024
4 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for vhive-serverless/invitro. Delivered load-testing realism and API invocation versatility, fixed a critical warmup bug, and reinforced performance reporting accuracy. Key contributions centered on RPS payload sizing, Dirigent POST support, and warmup duration corrections across RPS and trace driver experiments.
November 2024
33 Commits • 14 Features
Nov 1, 2024November 2024 monthly summary for vhive-serverless/invitro. Focus on delivering critical features, stabilizing CI, and improving modularity and observability. Delivered key features, stabilized tests, and enhanced tooling to enable faster future delivery. The month saw significant feature work, CI/QA improvements, and architecture refinements that collectively improve business value by enabling more reliable, scalable, and cost-efficient serverless experiments.
33 Commits • 14 Features
Nov 1, 2024November 2024 monthly summary for vhive-serverless/invitro. Focus on delivering critical features, stabilizing CI, and improving modularity and observability. Delivered key features, stabilized tests, and enhanced tooling to enable faster future delivery. The month saw significant feature work, CI/QA improvements, and architecture refinements that collectively improve business value by enabling more reliable, scalable, and cost-efficient serverless experiments.
November 2024
Activity
Loading activity data...
Quality Metrics
Correctness87.2%
Maintainability85.6%
Architecture80.8%
Performance76.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
CGoMarkdownPythonShellYAML
Technical Skills
Algorithm DesignAlgorithm ImplementationBackend DevelopmentBug FixBug FixingCI/CDCloud DeploymentCode OrganizationCode ReadabilityCode RefactoringConcurrencyConfiguration ManagementData StructuresDebuggingDependency Management
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline