What's the simplest way to get CPU speed, amount of RAM, OS version, and other hardware details from the running JVM? I'm putting together a yet-to-be-announced tool that will include hardware specs in its reporting.
So far, I've been able to get the hardware profile on Mac OS X using sysctl and on Linux using /proc/cpuinfo and /proc/meminfo:
java.version: 1.5.0_13
java.vm.name: Java HotSpot(TM) Client VM
os.arch: i386
os.name: Mac OS X
os.version: 10.5.1
user.name: jessewilson
host.name: jessewilson-macbookpro-2.local
os.kernel.version: 9.1.0
host.model: MacBookPro1,1
host.cpus: 2
host.cpu.speeds: 2000000000
host.cpu.arch: i386
host.cpu.bits.physical: 32
host.cpu.names: Genuine Intel(R) CPU 1500 @ 2.00GHz
host.cpu.caches.l2: 2097152
host.memory.physical: 2147483648
This comes from a quick-n-dirty Java app, HostInfo.java. Curious - anyone know of a simpler approach? Or a more reliable API? I'm not interested in JNI or nontrivial applications, since they complicate deployment.
Still to do - figure out what's necessary to discover this information on the Windows platform...