Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements

* Ulrich Drepper <[email protected]> wrote:

> > what do you mean by that - which is this same resource?
> 
> From what has been said here before, all futexes are stored in the 
> same list or hash table or whatever it was.  I want to see how that 
> code behaves if many separate processes concurrently use futexes.

futexes are stored in the bucket hash, and these patches do not change 
that. The pi-list that was talked about is per-futex. So there's no 
change to the way futexes are hashed nor should there be any scalability 
impact - besides the micro-impact that was measured in a number of ways 
- AFAICS.

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Pierre Peiffer <[email protected]>

• References:
  • [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Pierre Peiffer <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Ulrich Drepper <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Pierre Peiffer <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Ingo Molnar <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Pierre Peiffer <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Ulrich Drepper <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Ingo Molnar <[email protected]>
  • Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
    • From: Ulrich Drepper <[email protected]>

• Prev by Date: Re: [mm PATCH 2/6] RCU: softirq for RCU
• Next by Date: Re: [mm PATCH 3/6] RCU: Fix barriers
• Previous by thread: Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
• Next by thread: Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]