I discovered another interesting feature in my tests: If 'fork' exceeds nproc value, kernel panics. If 'fork' reaches the available memory limit, it is blocked until some memory is released (e.g. by the finish of some process).
Pavel 2014/1/10 erik quanstrom <quans...@quanstro.net> > > launching 32000 processes was not possible. the kernel got stuck. > > sloppy statement. it's not clear if the kernel was really stuck or just > hit something exponential. > > > here's one thing that's not immediately obvious, even when running the > > kernel. conv.nmach must be less than 0x7fffffff/(1000*1000) = 2147 > > to prevent reprioritize from doing silly things: > > > > /* > > * fairshare = 1.000 * conf.nproc * 1.000/load, > > * except the decimal point is moved three places > > * on both load and fairshare. > > */ > > fairshare = (conf.nmach*1000*1000)/load; > > and, look. the comment's wrong. never read the comments! > > - erik > >
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