$> mongo

db.hostInfo

> db.hostInfo()
{
  "system" : {
		"currentTime" : ISODate("2013-03-31T18:46:43.023Z"),
		"hostname" : "MacBook-Air-Andrej.local",
		"cpuAddrSize" : 64,
		"memSizeMB" : 4096,
		"numCores" : 4,
		"cpuArch" : "x86_64",
		"numaEnabled" : false
	},
	"os" : {
		"type" : "Darwin",
		"name" : "Mac OS X",
		"version" : "12.3.0"
	},
	"extra" : {
		"versionString" : "Darwin Kernel Version 12.3.0: Sun Jan  6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64",
		"alwaysFullSync" : 0,
		"nfsAsync" : 0,
		"model" : "MacBookAir5,2",
		"physicalCores" : 2,
		"cpuFrequencyMHz" : 1800,
		"cpuString" : "Intel(R) Core(TM) i5-3427U CPU @ 1.80GHz",
		"cpuFeatures" : "FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM PBE SSE3 PCLMULQDQ DTES64 MON DSCPL VMX SMX EST TM2 SSSE3 CX16 TPR PDCM SSE4.1 SSE4.2 xAPIC POPCNT AES PCID XSAVE OSXSAVE TSCTMR AVX1.0 RDRAND F16C",
		"pageSize" : 4096,
		"scheduler" : "traditional"
	},
	"ok" : 1
}