| Paper Abstract and Keywords |
| Presentation |
2008-05-13 09:30
Speculation scheme that continues executing mispredicted instructions
Takanobu Kita, Ryota Shioya, Hidetsugu Irie, Masahiro Goshima, Shuichi Sakai (Univ. of Tokyo) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Modern processors are acquiring deeper pipelines as their clock frequencies grow higher,leading to large misprediction penalties. Not all instructions flushed on misprediction, however, are wrongly executed; there are instructions independent of control flow. Not flushing such instructions and leaving them for continued execution will reduce misprediction penalty. This paper proposes a speculation scheme which continues execution of instructions on misprediction instead of flushing them. The results of instructions independent of control flow may be used for branch prediction and value prediction, and help execution of correct path. The evaluation showed that with an addition of small amount of Hardware, the proposed scheme will increase IPCs by average of 3.8\%(12%max.), 4.3\%(18%max.) and 3.8\%(36%max.), respectively for SPECint2000, SPECint2006 and MediaBench. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
branch prediction / misprediction / / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 108, pp. 7-12, May 2008. |
| Paper # |
|
| Date of Issue |
2008-05-06 (ICD) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
| Download PDF |
|
| Conference Information |
| Committee |
ICD IPSJ-ARC |
| Conference Date |
2008-05-13 - 2008-05-14 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
|
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
|
| Paper Information |
| Registration To |
IPSJ-ARC |
| Conference Code |
2008-05-ICD-ARC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Speculation scheme that continues executing mispredicted instructions |
| Sub Title (in English) |
|
| Keyword(1) |
branch prediction |
| Keyword(2) |
misprediction |
| Keyword(3) |
|
| Keyword(4) |
|
| Keyword(5) |
|
| Keyword(6) |
|
| Keyword(7) |
|
| Keyword(8) |
|
| 1st Author's Name |
Takanobu Kita |
| 1st Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
| 2nd Author's Name |
Ryota Shioya |
| 2nd Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
| 3rd Author's Name |
Hidetsugu Irie |
| 3rd Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
| 4th Author's Name |
Masahiro Goshima |
| 4th Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
| 5th Author's Name |
Shuichi Sakai |
| 5th Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
| 6th Author's Name |
|
| 6th Author's Affiliation |
() |
| 7th Author's Name |
|
| 7th Author's Affiliation |
() |
| 8th Author's Name |
|
| 8th Author's Affiliation |
() |
| 9th Author's Name |
|
| 9th Author's Affiliation |
() |
| 10th Author's Name |
|
| 10th Author's Affiliation |
() |
| 11th Author's Name |
|
| 11th Author's Affiliation |
() |
| 12th Author's Name |
|
| 12th Author's Affiliation |
() |
| 13th Author's Name |
|
| 13th Author's Affiliation |
() |
| 14th Author's Name |
|
| 14th Author's Affiliation |
() |
| 15th Author's Name |
|
| 15th Author's Affiliation |
() |
| 16th Author's Name |
|
| 16th Author's Affiliation |
() |
| 17th Author's Name |
|
| 17th Author's Affiliation |
() |
| 18th Author's Name |
|
| 18th Author's Affiliation |
() |
| 19th Author's Name |
|
| 19th Author's Affiliation |
() |
| 20th Author's Name |
|
| 20th Author's Affiliation |
() |
| 21st Author's Name |
|
| 21st Author's Affiliation |
() |
| 22nd Author's Name |
|
| 22nd Author's Affiliation |
() |
| 23rd Author's Name |
|
| 23rd Author's Affiliation |
() |
| 24th Author's Name |
|
| 24th Author's Affiliation |
() |
| 25th Author's Name |
|
| 25th Author's Affiliation |
() |
| 26th Author's Name |
/ / |
| 26th Author's Affiliation |
()
() |
| 27th Author's Name |
/ / |
| 27th Author's Affiliation |
()
() |
| 28th Author's Name |
/ / |
| 28th Author's Affiliation |
()
() |
| 29th Author's Name |
/ / |
| 29th Author's Affiliation |
()
() |
| 30th Author's Name |
/ / |
| 30th Author's Affiliation |
()
() |
| 31st Author's Name |
/ / |
| 31st Author's Affiliation |
()
() |
| 32nd Author's Name |
/ / |
| 32nd Author's Affiliation |
()
() |
| 33rd Author's Name |
/ / |
| 33rd Author's Affiliation |
()
() |
| 34th Author's Name |
/ / |
| 34th Author's Affiliation |
()
() |
| 35th Author's Name |
/ / |
| 35th Author's Affiliation |
()
() |
| 36th Author's Name |
/ / |
| 36th Author's Affiliation |
()
() |
| Speaker |
Author-1 |
| Date Time |
2008-05-13 09:30:00 |
| Presentation Time |
30 minutes |
| Registration for |
IPSJ-ARC |
| Paper # |
ICD2008-18 |
| Volume (vol) |
vol.108 |
| Number (no) |
no.28 |
| Page |
pp.7-12 |
| #Pages |
6 |
| Date of Issue |
2008-05-06 (ICD) |