Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [patch 0/9] x86_64: reliable TSC-based gettimeofday | Date | Thu, 1 Feb 2007 13:02:41 +0100 |
| |
On Thursday 01 February 2007 12:53, Andrea Arcangeli wrote: > On Thu, Feb 01, 2007 at 12:20:59PM +0100, Andi Kleen wrote: > > I think a better way to do this would be to define a new CLOCK_THREAD_MONOTONOUS > > (or better name) timer for clock_gettime(). > > > > [and my currently stalled vdso patches that implement clock_gettime > > as a vsyscall] > > > > Then also an application could easily use it with LD_PRELOAD > > I think a prctl to enable the non monothone mode is better than any > LD_PRELOAD trick.
I don't think so because having per process state in a vsyscall is quite costly. You would need to allocate at least one more page to each process, which I think would be excessive.
-Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |