Julian Elischer wrote: > David Xu wrote: >> Julian Elischer wrote: >>> David Xu wrote: >>>> David Xu wrote: >>>>> Julian Elischer wrote: >>>>> >>>>>> depends on the hardware. >>>>>> anyhow I was only saying it was possible, not necessarily >>>>>> good or even useful. >>>>>> >>>>>> >>>>> >>>>> I had done some works for thread private page shared by kernel >>>>> and userland when I was doing userland spinlock, if userland asks >>>>> a page, kernel will allocate it and put some interesting thing in >>>>> it by scheduler etcs, these code may be useful. >>>>> >>>> FYI: >>>> http://people.freebsd.org/~davidxu/schedctl/ >>> >>> reading this quickly, you allocate a separately addressed page for >>> each thread, but, how do you use it? >>> >>> >> I store the address in userland TLS area, then get it when I want to >> check some scheduling informations. > > and the scheduler writes out interesting information to that > location?... > > Yes.Received on Mon Mar 30 2009 - 03:05:37 UTC
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