Unverified50% confidenceFactExact time
The JVM's own fixed overhead when idle, including metaspace and off-heap memory, typically exceeds 256 MB to 512 MB, and GC requires the heap upper limit to be configured at 2 to 4 times the actual usage.
1
Sources
50%
Confidence
Long-term
Relevance
7/23/2026
First Seen
Sources
Related Claims
UnverifiedJenkins安装时需要配置特定的Java环境，且启动JVM时会预分配约为物理内存1/4的堆内存，整体运行可消耗512MB～1GB内存79% similarUnverifiedJVM默认配置下堆内存通常预分配为物理内存的1/477% similarUnverifiedThe cost of HNSW is relatively high memory usage, typically requiring 1.5 to 2 times the raw vector data size in additional space to store the graph structure.71% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/600094API
curl https://kongchang.com/api/v1/knowledge/claims/600094MCP
get_claim(id=600094)