Valgrind callgrind

E284621

Valgrind tool profiling tool

Valgrind callgrind is a profiling tool within the Valgrind framework that analyzes program performance by collecting detailed information about function calls and instruction-level execution costs.

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All labels observed (3)

Label	Occurrences
Valgrind callgrind canonical	1
Valgrind framework	1
callgrind	1

How this entity was disambiguated

This entity first appeared as the object of triple T2629602 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Valgrind callgrind
Context triple: [gprof, relatedTo, Valgrind callgrind]

A. gprof
gprof is a performance analysis tool that profiles program execution to help developers identify time-consuming functions and optimize their code.
B. gcov
gcov is a test coverage analysis tool used with GCC to measure and report how much of a program’s source code is executed during runtime.
C. aa-logprof
aa-logprof is a userspace AppArmor utility that analyzes system logs to help generate and refine security profiles for applications.
D. DTrace
DTrace is a comprehensive dynamic tracing framework originally developed for Solaris that enables real-time, low-overhead observability and debugging of operating systems and applications.
E. CSMonitor
CSMonitor is the abbreviated name for The Christian Science Monitor, an international news organization known for in-depth, balanced journalism.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Valgrind callgrind
Target entity description: Valgrind callgrind is a profiling tool within the Valgrind framework that analyzes program performance by collecting detailed information about function calls and instruction-level execution costs.

A. gprof
gprof is a performance analysis tool that profiles program execution to help developers identify time-consuming functions and optimize their code.
B. gcov
gcov is a test coverage analysis tool used with GCC to measure and report how much of a program’s source code is executed during runtime.
C. aa-logprof
aa-logprof is a userspace AppArmor utility that analyzes system logs to help generate and refine security profiles for applications.
D. DTrace
DTrace is a comprehensive dynamic tracing framework originally developed for Solaris that enables real-time, low-overhead observability and debugging of operating systems and applications.
E. CSMonitor
CSMonitor is the abbreviated name for The Christian Science Monitor, an international news organization known for in-depth, balanced journalism.
F. None of above. chosen

Statements (52)

Predicate	Object
instanceOf	Valgrind tool ⓘ profiling tool ⓘ
alternativeName	Callgrind tool ⓘ callgrind ⓘ linked to: Valgrind callgrind
developer	Valgrind project ⓘ linked to: Valgrind core
distribution	included with standard Valgrind releases ⓘ
feature	collects call-graph based profiling data ⓘ supports branch prediction simulation ⓘ supports cache simulation ⓘ supports call stack based cost aggregation ⓘ supports collecting costs per object file ⓘ supports collecting costs per shared library ⓘ supports collecting costs per source file ⓘ supports cost attribution to callers and callees ⓘ supports cost centers per function and per call site ⓘ supports distinguishing inclusive and exclusive costs ⓘ supports dumping profiling data on demand ⓘ supports function-level and line-level cost summaries ⓘ supports instruction-level cost modeling ⓘ supports merging multiple runs ⓘ supports selective instrumentation via options ⓘ supports simulation of different cache configurations ⓘ supports starting and stopping instrumentation at runtime ⓘ
hasVisualizationTool	KCachegrind ⓘ QCachegrind ⓘ linked to: KCachegrind
invocationExample	valgrind --tool=callgrind ./program ⓘ
license	GNU General Public License ⓘ
measures	basic block execution counts ⓘ branch prediction events (simulated) ⓘ cache-related events (simulated) ⓘ function call counts ⓘ instruction-level execution costs ⓘ
operatingSystem	Linux ⓘ macOS (limited / via Valgrind ports) ⓘ linked to: macOS
outputFormat	.out.callgrind text format ⓘ
partOf	Valgrind framework ⓘ linked to: Valgrind callgrind
primaryOutput	annotated cost information per function ⓘ annotated cost information per source line ⓘ call graph ⓘ callgrind output file ⓘ
programmingLanguage	C ⓘ
requires	Valgrind core ⓘ
softwareGenre	CPU profiler ⓘ code profiler ⓘ performance profiler ⓘ
supports	C programs ⓘ C++ programs ⓘ other native code languages compiled to machine code ⓘ
typicalFilenamePrefix	callgrind.out. ⓘ
useCase	analyze hot paths in call graphs ⓘ compare performance between program versions ⓘ identify performance bottlenecks in native applications ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

gprof → relatedTo → Valgrind callgrind ⓘ

Valgrind Callgrind → partOf → Valgrind framework ⓘ

subject linked to: Valgrind callgrind

linked to: Valgrind callgrind

Valgrind Callgrind → alternativeName → callgrind ⓘ