Liste des Groupes | Revenir à c arch |
I read that arm added the cas instruction because they didn't thinkA pipeline lock between the LD part of a CAS and the ST part of a
ldxr/stxr would scale well. It wasn't clear to me as to why that
would be the case. I would think the memory lock mechanism would
have really low overhead vs cas having to do an interlocked load
and store. Unless maybe the memory lock size might be large
enough to cause false sharing issues. Any ideas?
Joe Seigh
Date | Sujet | # | Auteur | |
2 Sep 24 | arm ldxr/stxr vs cas | 58 | jseigh | |
2 Sep 24 | Re: arm ldxr/stxr vs cas | 4 | Chris M. Thomasson | |
2 Sep 24 | Re: arm ldxr/stxr vs cas | 3 | Chris M. Thomasson | |
2 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | jseigh | |
2 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
4 Sep 24 | Re: arm ldxr/stxr vs cas | 50 | MitchAlsup1 | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 3 | Chris M. Thomasson | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | MitchAlsup1 | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 46 | jseigh | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Anton Ertl | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 44 | MitchAlsup1 | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 43 | Chris M. Thomasson | |
5 Sep 24 | Re: arm ldxr/stxr vs cas | 42 | jseigh | |
6 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | MitchAlsup1 | |
6 Sep 24 | Re: arm ldxr/stxr vs cas | 20 | Chris M. Thomasson | |
6 Sep 24 | Re: arm ldxr/stxr vs cas | 19 | MitchAlsup1 | |
7 Sep 24 | Re: arm ldxr/stxr vs cas | 18 | jseigh | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 17 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 16 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 15 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 14 | MitchAlsup1 | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 4 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | jseigh | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 9 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 6 | Michael S | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 3 | Michael S | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | Michael S | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Michael S | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | MitchAlsup1 | |
8 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 20 | Terje Mathisen | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 11 | jseigh | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 6 | Chris M. Thomasson | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 5 | jseigh | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 4 | Chris M. Thomasson | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 3 | jseigh | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | Chris M. Thomasson | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 4 | Terje Mathisen | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 3 | jseigh | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
10 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 7 | Paul A. Clayton | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | Chris M. Thomasson | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | jseigh | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | Stefan Monnier | |
12 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson | |
9 Sep 24 | Re: arm ldxr/stxr vs cas | 3 | jseigh | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 2 | jseigh | |
11 Sep 24 | Re: arm ldxr/stxr vs cas | 1 | Chris M. Thomasson |
Les messages affichés proviennent d'usenet.