Java Flight Recorder
E355668
Java Flight Recorder is a low-overhead profiling and diagnostics tool built into the Java Virtual Machine for collecting detailed runtime data about Java applications.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Java Flight Recorder canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3415258 — 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: Java Flight Recorder Context triple: [Amazon Corretto, supports, Java Flight Recorder]
-
A.
bpftrace
bpftrace is a high-level tracing language and tool for Linux that leverages eBPF to enable powerful, dynamic instrumentation and performance analysis of running systems.
-
B.
HotSpot JVM
HotSpot JVM is a high-performance Java Virtual Machine known for its advanced just-in-time compilation and adaptive optimization techniques, originally developed by Sun Microsystems.
-
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.
gperftools
gperftools is a Google-developed collection of performance analysis tools for C++ programs, including a fast memory allocator and CPU/heap profilers.
-
E.
ZGC
ZGC is a low-latency, scalable garbage collector for the HotSpot JVM designed to handle very large heaps with minimal pause times.
- 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: Java Flight Recorder Target entity description: Java Flight Recorder is a low-overhead profiling and diagnostics tool built into the Java Virtual Machine for collecting detailed runtime data about Java applications.
-
A.
bpftrace
bpftrace is a high-level tracing language and tool for Linux that leverages eBPF to enable powerful, dynamic instrumentation and performance analysis of running systems.
-
B.
HotSpot JVM
HotSpot JVM is a high-performance Java Virtual Machine known for its advanced just-in-time compilation and adaptive optimization techniques, originally developed by Sun Microsystems.
-
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.
gperftools
gperftools is a Google-developed collection of performance analysis tools for C++ programs, including a fast memory allocator and CPU/heap profilers.
-
E.
ZGC
ZGC is a low-latency, scalable garbage collector for the HotSpot JVM designed to handle very large heaps with minimal pause times.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Java Virtual Machine feature
ⓘ
diagnostics tool ⓘ performance monitoring tool ⓘ profiling tool ⓘ |
| analyzedBy | Java Mission Control ⓘ |
| availableIn |
OpenJDK 11 and later
ⓘ
Oracle JDK ⓘ |
| canBeConfiguredVia |
JFR configuration files
ⓘ
JVM command-line options ⓘ |
| canBeControlledVia |
JMX
ⓘ
linked to:
javax.management
jcmd tool ⓘ |
| collects |
CPU usage data
ⓘ
I/O events ⓘ JIT compilation events ⓘ JVM runtime data ⓘ allocation profiling data ⓘ application events ⓘ class loading events ⓘ exceptions ⓘ file I/O events ⓘ garbage collection events ⓘ lock contention data ⓘ memory usage data ⓘ method profiling data ⓘ safepoint events ⓘ socket I/O events ⓘ thread activity ⓘ |
| designedFor | minimal runtime impact ⓘ |
| developer | Oracle Corporation ⓘ |
| hasCharacteristic |
always-on monitoring
ⓘ
continuous profiling ⓘ event-based ⓘ low overhead ⓘ production-safe ⓘ |
| introducedIn |
Oracle JDK 7u4
ⓘ
linked to:
Oracle JDK
|
| licenseChange | open sourced in OpenJDK 11 ⓘ |
| outputFormat | .jfr file ⓘ |
| partOf |
HotSpot JVM
ⓘ
Java Virtual Machine ⓘ OpenJDK ⓘ |
| supportsFeature |
continuous recordings
ⓘ
custom event definitions ⓘ event streaming ⓘ on-demand recordings ⓘ |
| supportsLanguage |
Java
ⓘ
other JVM languages ⓘ |
| useCase |
latency analysis
ⓘ
performance analysis ⓘ production troubleshooting ⓘ profiling in test environments ⓘ resource usage optimization ⓘ |
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: Java Flight Recorder Description of subject: Java Flight Recorder is a low-overhead profiling and diagnostics tool built into the Java Virtual Machine for collecting detailed runtime data about Java applications.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.