microsoft/git
Jan 2018 – Dec 2018
6 Months active
Languages Used
C
Technical Skills
C programmingGitversion control systemsgitversion controlGit internals
Ben Peart
PROFILE
Ben Peart
Ben Peart contributed to microsoft/git by developing and optimizing core features for large-scale repository management, focusing on Virtual File System (VFS) integration and filesystem cache (fscache) enhancements. He implemented selective file tracking and command safety mechanisms to prevent unsupported operations in GVFS-backed repositories, improving reliability and user safety. Leveraging C and the Windows API, Ben rearchitected fscache for thread-specific concurrency, introduced memory pool optimizations, and integrated detailed tracing for performance and debugging. His work addressed both feature development and bug fixes, demonstrating deep understanding of Git internals, system programming, and performance tuning, resulting in robust, scalable solutions for enterprise workflows.
Overall Statistics
Feature vs Bugs
84%Features
Repository Contributions
113Total
Bugs
3
Commits
113
Features
16
Lines of code
8,368
Activity Months6
Your Network
4682 peopleSame Organization
@microsoft.com4432
GitOpsMember
Ananta GuptaMember
Abigail HartmanMember
Abram SandersonMember
Adam EttenbergerMember
Ami HollanderMember
AndersMember
Andrej KyselicaMember
Andrew MalkovMember
Work History
December 2018
1 Commits • 1 Features
Dec 1, 2018December 2018 Monthly Summary: Delivered GVFS Command Safety feature for microsoft/git to block unsupported Git commands within GVFS repos, preventing disruptive operations and reducing the risk of repository corruption. The change improves safety and reliability for developers using GVFS by guarding against executing risky commands in GVFS-backed repositories. Key commit: 573b59df2813e473cbf81870ea67b033cd7caa73.
1 Commits • 1 Features
Dec 1, 2018December 2018 Monthly Summary: Delivered GVFS Command Safety feature for microsoft/git to block unsupported Git commands within GVFS repos, preventing disruptive operations and reducing the risk of repository corruption. The change improves safety and reliability for developers using GVFS by guarding against executing risky commands in GVFS-backed repositories. Key commit: 573b59df2813e473cbf81870ea67b033cd7caa73.
December 2018
November 2018
50 Commits • 6 Features
Nov 1, 2018Concise monthly summary for microsoft/git (2018-11). Focused on stabilizing and optimizing fscache, improving directory enumeration performance, and strengthening thread-safety while delivering tangible business value through faster status queries and reduced memory pressure. The month culminated in a set of interrelated changes across mempool-backed allocations, initial sizing, and OS API usage, plus a critical cleanup fix in status handling.
November 2018
50 Commits • 6 Features
Nov 1, 2018Concise monthly summary for microsoft/git (2018-11). Focused on stabilizing and optimizing fscache, improving directory enumeration performance, and strengthening thread-safety while delivering tangible business value through faster status queries and reduced memory pressure. The month culminated in a set of interrelated changes across mempool-backed allocations, initial sizing, and OS API usage, plus a critical cleanup fix in status handling.
October 2018
40 Commits • 6 Features
Oct 1, 20182018-10 monthly summary for microsoft/git focusing on fscache threading improvements, testability enhancements, and mempool observability. Highlights include per-thread fscache caches (removing the global mutex), continued performance gains, and increased testability and instrumentation to support faster iteration and memory tuning.
40 Commits • 6 Features
Oct 1, 20182018-10 monthly summary for microsoft/git focusing on fscache threading improvements, testability enhancements, and mempool observability. Highlights include per-thread fscache caches (removing the global mutex), continued performance gains, and increased testability and instrumentation to support faster iteration and memory tuning.
October 2018
September 2018
20 Commits • 2 Features
Sep 1, 2018In September 2018, microsoft/git focused on performance enhancements through filesystem cache (fscache) integration for index refresh and enhanced observability. The work delivers substantial speedups for large repositories and improves debug/diagnostic capabilities.
September 2018
20 Commits • 2 Features
Sep 1, 2018In September 2018, microsoft/git focused on performance enhancements through filesystem cache (fscache) integration for index refresh and enhanced observability. The work delivers substantial speedups for large repositories and improves debug/diagnostic capabilities.
August 2018
1 Commits
Aug 1, 2018In 2018-08, Microsoft/git delivered a critical bug fix for Virtual File System Hook Safety, ensuring the VFS hook does not run when the index is redirected by commands such as difftool -d and the git sequencer (rebase -i, cherry-pick, revert). This prevents virtualization data from being written into temporary indices, stabilizing virtualization behavior across common workflows. The change, committed as 4c0a6f2839b50f73ceb497c167752d48cd74417c, fixes issue #13 and includes signed-off-by Ben Peart with contributions from Johannes Schindelin.
1 Commits
Aug 1, 2018In 2018-08, Microsoft/git delivered a critical bug fix for Virtual File System Hook Safety, ensuring the VFS hook does not run when the index is redirected by commands such as difftool -d and the git sequencer (rebase -i, cherry-pick, revert). This prevents virtualization data from being written into temporary indices, stabilizing virtualization behavior across common workflows. The change, committed as 4c0a6f2839b50f73ceb497c167752d48cd74417c, fixes issue #13 and includes signed-off-by Ben Peart with contributions from Johannes Schindelin.
August 2018
January 2018
1 Commits • 1 Features
Jan 1, 2018Concise monthly summary for 2018-01 focusing on microsoft/git feature development and performance improvements related to Virtual File System (VFS) integration.
January 2018
1 Commits • 1 Features
Jan 1, 2018Concise monthly summary for 2018-01 focusing on microsoft/git feature development and performance improvements related to Virtual File System (VFS) integration.
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Quality Metrics
Correctness96.8%
Maintainability86.0%
Architecture90.6%
Performance90.6%
AI Usage20.2%
Skills & Technologies
Programming Languages
C
Technical Skills
CC programmingGitGit internalsWindows APIdebugginggitgit internalsmemory managementmulti-threadingmultithreadingperformance optimizationsoftware testingsystem programmingtesting
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