Messages in this thread | | | Date | Wed, 05 Mar 2003 11:32:36 -0800 | From | Ulrich Drepper <> | Subject | Re: Better CLONE_SETTLS support for Hammer |
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Andi Kleen wrote:
> If you just want to save one mmap/allocation: I think the context switch > overhead will be more expensive than the allocation.
And two more things:
1. every process will already use the prctl(ARCH_SET_FS). We are talking here only about the 2nd thread and later. We need to use prctl(ARCH_SET_FS) for TLS support.
2. May I remind you that you were in the crowd who complained when we requested a dedicated thread register? Yes, I still would prefer that but I have no energy to battle for that.
- -- - --------------. ,-. 444 Castro Street Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA Red Hat `--' drepper at redhat.com `--------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux)
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