| domain | norlinder.nu |
| summary | The article highlights the need for improved metrics to measure infrastructure efficiency, specifically focusing on collector CPU overhead. It introduces the new `MemoryMXBean.getTotalGcCpuTime` API in Java 26 OpenJDK 26, which allows for precise quantification of this overhead, enabling better informed decisions about the trade-off between memory and CPU usage. The current standard method for measuring thread CPU time on Linux is presented as an inefficient, multi-step process. |
| title | Jonas Norlinder |
| description | Oracle JVM Engineer. GC researcher. Empirical research and deep dives into the OpenJDK HotSpot mainline, ZGC, and Java performance. |
| keywords | memory, performance, time, java, heap, trade, modern, collectors, thread, trash, take, objects, compilers, type, home, research, garbage |
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| nslookup | A 104.21.10.112, A 172.67.131.117 |
| created | 2026-03-09 |
| updated | 2026-03-09 |
| summarized | None |
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