By: Hugo Décharnes (hdecharn.delete@this.outlook.fr), September 8, 2021 8:58 am
Room: Moderated Discussions
Issue is, if the virtual tag comparison is on the path of the translation, then your L2 access time is increased (assuming L2 is PIPT). Also, there is the need for scrubbing the cache upon TLBI, if no physical tag confirmation is done, to make those targeted lines unhitable by load/store (though still evictable and snoopable). From a performance and power perspective, it is better to have a partial virtual tag, and a full physical one, used later for confirmation.
| Topic | Posted By | Date |
|---|---|---|
| POWER10 SAP SD benchmark | anon2 | 2021/09/06 03:36 PM |
| POWER10 SAP SD benchmark | Daniel B | 2021/09/07 02:31 AM |
| "Cores" (and SPEC) | Rayla | 2021/09/07 07:51 AM |
| "Cores" (and SPEC) | anon | 2021/09/07 03:56 PM |
| POWER10 SAP SD benchmark | Anon | 2021/09/07 03:24 PM |
| POWER10 SAP SD benchmark | Anon | 2021/09/07 03:27 PM |
| Virtually tagged L1-caches | sr | 2021/09/08 05:49 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/08 08:22 AM |
| Virtually tagged L1-caches | sr | 2021/09/08 08:56 AM |
| Virtually tagged L1-caches | Hugo Décharnes | 2021/09/08 08:58 AM |
| Virtually tagged L1-caches | sr | 2021/09/08 10:09 AM |
| Virtually tagged L1-caches | Hugo Décharnes | 2021/09/08 10:46 AM |
| Virtually tagged L1-caches | sr | 2021/09/08 11:35 AM |
| Virtually tagged L1-caches | Hugo Décharnes | 2021/09/08 12:23 PM |
| Virtually tagged L1-caches | sr | 2021/09/08 12:40 PM |
| Virtually tagged L1-caches | anon | 2021/09/09 03:16 AM |
| Virtually tagged L1-caches | Konrad Schwarz | 2021/09/10 05:19 AM |
| Virtually tagged L1-caches | Hugo Décharnes | 2021/09/10 06:59 AM |
| Virtually tagged L1-caches | anon | 2021/09/14 03:17 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/14 09:34 AM |
| Or use a PLB (NT) | Paul A. Clayton | 2021/09/14 09:45 AM |
| Or use a PLB | Linus Torvalds | 2021/09/14 03:27 PM |
| Or use a PLB | anon | 2021/09/15 12:15 AM |
| Or use a PLB | Michael S | 2021/09/15 03:21 AM |
| Or use a PLB | dmcq | 2021/09/15 03:42 PM |
| Or use a PLB | Konrad Schwarz | 2021/09/16 04:24 AM |
| Or use a PLB | Michael S | 2021/09/16 10:13 AM |
| Or use a PLB | --- | 2021/09/16 01:02 PM |
| PLB reference | Paul A. Clayton | 2021/09/18 02:35 PM |
| PLB reference | Michael S | 2021/09/18 04:14 PM |
| Demand paging/translation orthogonal | Paul A. Clayton | 2021/09/19 07:33 AM |
| Demand paging/translation orthogonal | Michael S | 2021/09/19 09:10 AM |
| PLB reference | Carson | 2021/09/20 10:19 PM |
| PLB reference | sr | 2021/09/20 06:02 AM |
| PLB reference | Michael S | 2021/09/20 07:03 AM |
| PLB reference | Linus Torvalds | 2021/09/20 12:10 PM |
| Or use a PLB | sr | 2021/09/20 04:32 AM |
| Or use a PLB | sr | 2021/09/21 09:36 AM |
| Or use a PLB | Linus Torvalds | 2021/09/21 10:04 AM |
| Or use a PLB | sr | 2021/09/21 10:48 AM |
| Or use a PLB | Linus Torvalds | 2021/09/21 01:55 PM |
| Or use a PLB | sr | 2021/09/22 06:55 AM |
| Or use a PLB | rwessel | 2021/09/22 07:09 AM |
| Or use a PLB | Linus Torvalds | 2021/09/22 11:50 AM |
| Or use a PLB | sr | 2021/09/22 01:00 PM |
| Or use a PLB | dmcq | 2021/09/22 04:07 PM |
| Or use a PLB | Etienne Lorrain | 2021/09/23 08:50 AM |
| Or use a PLB | anon2 | 2021/09/22 04:09 PM |
| Or use a PLB | dmcq | 2021/09/23 02:35 AM |
| Or use a PLB | ⚛ | 2021/09/23 09:37 AM |
| Or use a PLB | Linus Torvalds | 2021/09/23 12:01 PM |
| Or use a PLB | gpd | 2021/09/24 03:59 AM |
| Or use a PLB | Linus Torvalds | 2021/09/24 10:45 AM |
| Or use a PLB | dmcq | 2021/09/24 12:43 PM |
| Or use a PLB | sr | 2021/09/25 10:19 AM |
| Or use a PLB | Linus Torvalds | 2021/09/25 10:44 AM |
| Or use a PLB | sr | 2021/09/25 11:11 AM |
| Or use a PLB | Linus Torvalds | 2021/09/25 11:31 AM |
| Or use a PLB | sr | 2021/09/25 11:52 AM |
| Or use a PLB | Linus Torvalds | 2021/09/25 12:05 PM |
| Or use a PLB | sr | 2021/09/25 12:23 PM |
| Or use a PLB | rwessel | 2021/09/25 03:29 PM |
| Or use a PLB | sr | 2021/10/01 12:22 AM |
| Or use a PLB | rwessel | 2021/10/01 06:19 AM |
| Or use a PLB | David Hess | 2021/10/01 10:35 AM |
| Or use a PLB | rwessel | 2021/10/02 04:47 AM |
| Or use a PLB | sr | 2021/10/02 11:16 AM |
| Or use a PLB | rwessel | 2021/10/02 11:53 AM |
| Or use a PLB | Linus Torvalds | 2021/09/25 11:57 AM |
| Or use a PLB | sr | 2021/09/25 12:07 PM |
| Or use a PLB | Linus Torvalds | 2021/09/25 12:21 PM |
| Or use a PLB | sr | 2021/09/25 12:40 PM |
| Or use a PLB | nksingh | 2021/09/27 09:07 AM |
| Or use a PLB | ⚛ | 2021/09/27 09:02 AM |
| Or use a PLB | Linus Torvalds | 2021/09/27 10:20 AM |
| Or use a PLB | Linus Torvalds | 2021/09/27 12:58 PM |
| Or use a PLB | dmcq | 2021/09/28 10:59 AM |
| Or use a PLB | sr | 2021/09/25 10:34 AM |
| Or use a PLB | rwessel | 2021/09/25 03:44 PM |
| Or use a PLB | sr | 2021/10/01 01:04 AM |
| Or use a PLB | rwessel | 2021/10/01 06:33 AM |
| I386 segmentation highlights | sr | 2021/10/04 07:53 AM |
| I386 segmentation highlights | Adrian | 2021/10/04 09:53 AM |
| I386 segmentation highlights | sr | 2021/10/04 10:19 AM |
| I386 segmentation highlights | rwessel | 2021/10/04 04:57 PM |
| I386 segmentation highlights | sr | 2021/10/05 11:16 AM |
| I386 segmentation highlights | Michael S | 2021/10/05 12:27 PM |
| I386 segmentation highlights | rwessel | 2021/10/05 04:20 PM |
| Or use a PLB | JohnG | 2021/09/25 10:18 PM |
| Or use a PLB | ⚛ | 2021/09/27 07:37 AM |
| Or use a PLB | Heikki Kultala | 2021/09/28 03:53 AM |
| Or use a PLB | rwessel | 2021/09/28 07:29 AM |
| Or use a PLB | David Hess | 2021/09/23 06:00 PM |
| Or use a PLB | Adrian | 2021/09/24 01:21 AM |
| Or use a PLB | dmcq | 2021/09/25 12:41 PM |
| Or use a PLB | blaine | 2021/09/26 11:19 PM |
| Or use a PLB | David Hess | 2021/09/27 11:35 AM |
| Or use a PLB | blaine | 2021/09/27 05:19 PM |
| Or use a PLB | Adrian | 2021/09/27 10:40 PM |
| Or use a PLB | Adrian | 2021/09/27 10:59 PM |
| Or use a PLB | dmcq | 2021/09/28 07:45 AM |
| Or use a PLB | rwessel | 2021/09/28 07:45 AM |
| Or use a PLB | David Hess | 2021/09/28 12:50 PM |
| Or use a PLB | Etienne Lorrain | 2021/09/30 01:25 AM |
| Or use a PLB | David Hess | 2021/10/01 10:40 AM |
| MMU privileges | sr | 2021/09/21 11:07 AM |
| MMU privileges | Linus Torvalds | 2021/09/21 01:49 PM |
| Virtually tagged L1-caches | Konrad Schwarz | 2021/09/16 04:18 AM |
| Virtually tagged L1-caches | Carson | 2021/09/16 01:12 PM |
| Virtually tagged L1-caches | anon2 | 2021/09/16 05:16 PM |
| Virtually tagged L1-caches | rwessel | 2021/09/16 06:29 PM |
| Virtually tagged L1-caches | sr | 2021/09/20 04:20 AM |
| Virtually tagged L1-caches | --- | 2021/09/08 02:28 PM |
| Virtually tagged L1-caches | anonymou5 | 2021/09/08 08:28 PM |
| Virtually tagged L1-caches | anonymou5 | 2021/09/08 08:34 PM |
| Virtually tagged L1-caches | --- | 2021/09/09 10:14 AM |
| Virtually tagged L1-caches | anonymou5 | 2021/09/09 10:44 PM |
| Multi-threading? | David Kanter | 2021/09/09 09:32 PM |
| Multi-threading? | --- | 2021/09/10 09:19 AM |
| Virtually tagged L1-caches | sr | 2021/09/11 01:19 AM |
| Virtually tagged L1-caches | sr | 2021/09/11 01:36 AM |
| Virtually tagged L1-caches | --- | 2021/09/11 09:53 AM |
| Virtually tagged L1-caches | sr | 2021/09/12 12:43 AM |
| Virtually tagged L1-caches | Linus Torvalds | 2021/09/12 11:10 AM |
| Virtually tagged L1-caches | sr | 2021/09/12 11:57 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/13 08:31 AM |
| Virtually tagged L1-caches | sr | 2021/09/20 04:11 AM |
| Virtually tagged L1-caches | sr | 2021/09/11 02:49 AM |
| Virtually tagged L1-caches | Linus Torvalds | 2021/09/08 12:34 PM |
| Virtually tagged L1-caches | dmcq | 2021/09/09 02:46 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/09 02:58 AM |
| Virtually tagged L1-caches | sr | 2021/09/11 01:29 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/11 08:59 AM |
| Virtually tagged L1-caches | sr | 2021/09/12 12:57 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/12 08:44 AM |
| Virtually tagged L1-caches | sr | 2021/09/12 09:48 AM |
| Virtually tagged L1-caches | dmcq | 2021/09/12 01:22 PM |
| Virtually tagged L1-caches | sr | 2021/09/20 04:40 AM |
| Where do you see this information? (NT) | anon2 | 2021/09/09 02:45 AM |
| Where do you see this information? | sr | 2021/09/11 01:40 AM |
| Where do you see this information? | anon2 | 2021/09/11 01:53 AM |
| Where do you see this information? | sr | 2021/09/11 02:08 AM |
| Thank you (NT) | anon2 | 2021/09/11 04:31 PM |
