Intel Hyper-Threading Technology
E163097
Intel Hyper-Threading Technology is Intel’s simultaneous multithreading implementation that allows a single physical processor core to appear as multiple logical cores to improve parallel processing and overall performance.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Hyper-Threading Technology | 2 |
| Intel Hyper-Threading Technology canonical | 2 |
| Hyper-Threading | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
microprocessor feature
ⓘ
simultaneous multithreading technology ⓘ |
| alsoKnownAs |
HT Technology
ⓘ
Intel Hyper-Threading Technology ⓘ
surface form:
Hyper-Threading
Intel HT ⓘ |
| benefit |
higher utilization of idle CPU resources
ⓘ
potentially higher instructions per cycle ⓘ |
| canBe |
disabled in BIOS
ⓘ
enabled in BIOS ⓘ |
| category |
CPU optimization
ⓘ
parallel computing technology ⓘ |
| competesWith | multi-core scaling alone ⓘ |
| designGoal |
improve performance per watt
ⓘ
improve responsiveness under heavy multitasking ⓘ |
| developer |
Intel Corporation
ⓘ
surface form:
Intel
|
| documentation |
Intel Architecture Software Developer’s Manual
ⓘ
surface form:
Intel Software Developer’s Manual
Intel processor datasheets ⓘ |
| duplicates |
architectural state per logical processor
ⓘ
register state per logical processor ⓘ |
| effect | one physical core appears as two logical cores ⓘ |
| enables | multiple logical processors per physical core ⓘ |
| firstIntroducedBy |
Pentium 4
ⓘ
surface form:
Intel Pentium 4
|
| firstIntroducedIn | early 2000s ⓘ |
| hasConfigurationOption | per-core enable or disable on some platforms ⓘ |
| implements | simultaneous multithreading ⓘ |
| improves | performance of multithreaded workloads ⓘ |
| isPartOf | Intel processor microarchitecture features ⓘ |
| marketedAs | performance-enhancing feature ⓘ |
| mayNotImprove | performance of single-threaded workloads ⓘ |
| purpose |
better utilize execution resources
ⓘ
improve parallel processing performance ⓘ increase CPU throughput ⓘ |
| relatedTo | AMD simultaneous multithreading ⓘ |
| requires |
BIOS or firmware support
ⓘ
operating system scheduler awareness of logical cores ⓘ operating system support for logical processors ⓘ |
| risk | side-channel security vulnerabilities ⓘ |
| securityConcern | information leakage between logical cores ⓘ |
| shares |
L1 cache between logical processors
ⓘ
L2 cache between logical processors ⓘ branch predictor between logical processors ⓘ execution units between logical processors ⓘ |
| usedIn |
Intel Core processor family
ⓘ
surface form:
Intel Core processors
Intel Xeon ⓘ
surface form:
Intel Xeon processors
Intel processors ⓘ
surface form:
Intel desktop processors
Intel mobile processors ⓘ Intel server processors ⓘ |
| visibleAs | two hardware threads per core on supported CPUs ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hyper-Threading Technology
this entity surface form:
Hyper-Threading