Unverified50% confidenceFactExact time
Cloudflare Workers 采用 V8 Isolates 而非容器隔离用户代码，每个 Isolate 内存占用仅约3MB，冷启动时间趋近于零
1
Sources
50%
Confidence
Long-term
Relevance
7/23/2026
First Seen
Sources
Related Claims
UnverifiedWorkers use V8 Isolates rather than containers to isolate user code; each Isolate consumes only about 3 MB of memory, far less than the hundreds of MB required by Docker containers.79% similarUnverifiedV8 Isolates run entirely in user space with no kernel intervention required, startup time can be as low as under 5ms, and memory overhead is typically 2–10MB.67% similar
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