On Mon, Sep 11, 2023 at 11:00:41AM +0100, Stuart Henderson wrote: > -H is userland threads, -k is kernel threads. I guess "kernel visible" was > to distinguish between the old uthread where threads were handled in > userland and not visible to the kernel, and rthread ... > > -- > Sent from a phone, apologies for poor formatting. > > On 11 September 2023 10:02:32 Marc Espie <marc.espie.open...@gmail.com> wrote: > > > I was reading through ps.1, which has two slightly different options > > -H Also display information about kernel visible threads. > > -k Also display information about kernel threads. > > > > > > It's not at all obvious what the difference between these options might be. > > > > From the log: > > -------------------- > > revision 1.77 > > date: 2011/09/25 00:29:59; author: guenther; state: Exp; lines: +5 -3; > > Add -H option to show rthreads, hiding them by default > > > > Diff from uwe@ > > -------------------- > > so slightly more info. > > > > Looking at the code, now this is KERN_PROC_KTHREAD vs KERN_PROC_SHOW_THREADS > > in kvm_getprocs(3). > > > > Now KERN_PROC_KTHREAD is documented, but there is nothing about > > KERN_PROC_SHOW_THREADS. > > > > The code around (dothreads) in kvm* doesn't make things really obvious. > We can probably just say "userland threads"/"kernel threads" these days ?
I expect documenting KERN_PROC_SHOW_THREADS would be a good idea /
