On Thu, Feb 12, 2015 at 06:55:30PM -0500, Rich Felker wrote: > On Fri, Feb 13, 2015 at 10:12:11AM +1030, Alan Modra wrote: > > I posted support for TLSDESC on powerpc back in 2009 (search for > > powerpc _tls_get_addr call optimization). The patch wasn't reviewed, > > and I didn't push it because my benchmark tests didn't show a much of > > a gain. Quite possibly I wasn't using the right benchmark. > > Were you measuring static-allocated TLSDESC vs non-TLSDESC GD model? > That's the case where there should be a "big" difference, though I'm > still somewhat skeptical of the benefits in real-world usage cases.
I can't remember, sorry, it was too long ago. -- Alan Modra Australia Development Lab, IBM
