Available on lua
utime:MicroTimeStamp
stime:MicroTimeStamp
oublock:Int
nvcsw:Int
nswap:Int
nsignals:Int
nivcsw:Int
msgsnd:Int
msgrcv:Int
minflt:Int
maxrss:Int
majflt:Int
ixrss:Int
isrss:Int
inblock:Int
idrss:Int