How can I confirm that a host is NUMA-aware? The [Oracle doc](http://docs.oracle.com/javase/7/docs/technotes/guides/vm/performance-enhancements-7.html#numa) says that NUMA-awareness starts at kernel 2.6.19, but the [NUMA man page](https://www.kernel.org/doc/man-pages/online/pages/man7/numa.7.html) says that it was introduced with 2.6.14. I'd like to be sure that a Java process started with `-XX:+UseNUMA` is actually taking advantage of something.

Checking for the numa\_maps, I see that I have them:

```
# find /proc -name numa_maps
/proc/1/task/1/numa_maps
/proc/1/numa_maps
/proc/2/task/2/numa_maps
/proc/2/numa_maps
/proc/3/task/3/numa_maps

```

Though my kernel is behind what Oracle states:

```
# uname -sr
Linux 2.6.18-92.el5

```

I'm currently using 64-bit jdk1.6.0\_29 on RHEL5.1.