为什么多线程速度会快？
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- Dominant language
- C++
- Stars
- 4k
- Forks
- 592
- PR merge metrics
- No merged PRs in 30d
Description
我用的是C++版。4核的cpu上跑分词。
单线程跑分词CPU飙到100%了，我用4线程同样是CPU占到100%
但是4线程跑30M文本只有3分钟，单线程却花了10分钟。
why？
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Research direction
The issue names no files, tests, or entry points. Start by reproducing the C++ tokenizer benchmark on 30M of text with one and four threads, then inspect the relevant threading and performance paths; done means explaining the differing runtimes or identifying a concrete performance defect.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 18/100