perf (Linux profiler)
E284619
perf (Linux profiler) is a powerful Linux profiling and performance analysis tool that leverages kernel performance counters to measure and diagnose system and application behavior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| perf (Linux profiler) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2629600 — 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: perf (Linux profiler) Context triple: [gprof, relatedTo, perf (Linux profiler)]
-
A.
gprof
gprof is a performance analysis tool that profiles program execution to help developers identify time-consuming functions and optimize their code.
-
B.
aa-logprof
aa-logprof is a userspace AppArmor utility that analyzes system logs to help generate and refine security profiles for applications.
-
C.
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.
-
D.
CSMonitor
CSMonitor is the abbreviated name for The Christian Science Monitor, an international news organization known for in-depth, balanced journalism.
-
E.
Performance Tracker
Performance Tracker is an annual analysis by the Institute for Government that assesses how effectively UK public services are performing and being managed.
- 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: perf (Linux profiler) Target entity description: perf (Linux profiler) is a powerful Linux profiling and performance analysis tool that leverages kernel performance counters to measure and diagnose system and application behavior.
-
A.
gprof
gprof is a performance analysis tool that profiles program execution to help developers identify time-consuming functions and optimize their code.
-
B.
aa-logprof
aa-logprof is a userspace AppArmor utility that analyzes system logs to help generate and refine security profiles for applications.
-
C.
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.
-
D.
CSMonitor
CSMonitor is the abbreviated name for The Christian Science Monitor, an international news organization known for in-depth, balanced journalism.
-
E.
Performance Tracker
Performance Tracker is an annual analysis by the Institute for Government that assesses how effectively UK public services are performing and being managed.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Linux performance analysis tool
ⓘ
command-line utility ⓘ profiling tool ⓘ |
| analyzes |
kernel-space code
ⓘ
user-space applications ⓘ |
| command |
perf annotate
ⓘ
perf bench ⓘ perf list ⓘ perf record ⓘ perf report ⓘ perf sched ⓘ perf script ⓘ perf stat ⓘ perf top ⓘ perf trace ⓘ |
| developedBy | Linux kernel community ⓘ |
| includedIn | most major Linux distributions ⓘ |
| license | GPL-2.0-or-later ⓘ |
| measures |
CPU cycles
ⓘ
I/O-related events ⓘ branch misses ⓘ cache misses ⓘ context switches ⓘ instructions ⓘ page faults ⓘ task scheduling behavior ⓘ |
| partOf | Linux kernel tools ⓘ |
| runsOn | Linux ⓘ |
| supports |
CPU performance events
ⓘ
DWARF-based call graphs (on supported builds) ⓘ branch tracing (on supported CPUs) ⓘ call-graph profiling ⓘ event-based profiling ⓘ filtering by CPU ⓘ filtering by PID ⓘ filtering by command name ⓘ frame-pointer-based call graphs ⓘ hardware cache events ⓘ per-process profiling ⓘ per-thread profiling ⓘ sampling-based profiling ⓘ software performance events ⓘ system-wide profiling ⓘ tracepoint events ⓘ |
| supportsOutput |
interactive TUI reports
ⓘ
scriptable output formats ⓘ text reports ⓘ |
| uses |
hardware performance counters
ⓘ
kernel performance counters ⓘ |
| writtenIn | C ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: perf (Linux profiler) Description of subject: perf (Linux profiler) is a powerful Linux profiling and performance analysis tool that leverages kernel performance counters to measure and diagnose system and application behavior.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.