Agner's CPU blog

New Topic

40 topics

Topics

Replies

Views

Last post

What's new about Zen 5 and Arrow Lake?

Last post by agner « 2025-04-10, 16:41:02
Replies: 8
by Vladislav_152378 » 2025-02-27, 22:49:48

8 Replies

22595 Views

Last post by agner
2025-04-10, 16:41:02
Testp and github

Last post by agner « 2024-10-31, 15:32:35
Replies: 1
by alto_gmx » 2024-10-31, 11:50:04

1 Replies

8701 Views

Last post by agner
2024-10-31, 15:32:35
Is using BSF instruction instead of using GNU C __builtin_ctz inefficient?

Last post by agner « 2023-12-25, 8:34:40
Replies: 1
by pauljurczak » 2023-12-25, 7:35:06

1 Replies

36918 Views

Last post by agner
2023-12-25, 8:34:40
Efficiency of array<Vec32uc, 8> vs. ContainerV<Vec32uc, 8>

Last post by agner « 2023-12-23, 15:21:10
Replies: 1
by pauljurczak » 2023-12-23, 6:33:45

1 Replies

28437 Views

Last post by agner
2023-12-23, 15:21:10
Intel's "cripple AMD" function

Last post by agner « 2023-09-06, 10:06:59
Replies: 6
by agner » 2019-12-30, 12:35:23

6 Replies

382186 Views

Last post by agner
2023-09-06, 10:06:59
Suggestion: Stop using "vector" for computer science

Last post by agner « 2023-08-27, 5:39:08
Replies: 1
by freelancer_U » 2023-08-26, 14:22:31

1 Replies

41994 Views

Last post by agner
2023-08-27, 5:39:08
Testp Question

Last post by agner « 2023-08-25, 6:22:49
Replies: 1
by mineiro » 2023-08-25, 3:13:11

1 Replies

40811 Views

Last post by agner
2023-08-25, 6:22:49
Intel AVX10 & APX announcement

Last post by Vladislav_152378 « 2023-07-31, 14:31:51
Replies: 7
by Vladislav_152378 » 2023-07-30, 2:50:37

7 Replies

232069 Views

Last post by Vladislav_152378
2023-07-31, 14:31:51
AMD processors do allow you to change the CPUID string

Last post by agner « 2023-07-20, 17:17:54
Replies: 1
by Neville C » 2023-07-20, 16:01:01

1 Replies

45296 Views

Last post by agner
2023-07-20, 17:17:54
VZEROUPPER issue with Zen4 in 32-bit mode?

Last post by slowjuggler « 2023-07-14, 16:55:11
Replies: 3
by jkivilin » 2023-06-03, 16:10:59

3 Replies

90874 Views

Last post by slowjuggler
2023-07-14, 16:55:11
Branch Predictor and Instruction Pipelining, how can I prove the existence of it?

Last post by agner « 2023-04-18, 6:09:05
Replies: 3
by 王家才 » 2023-02-10, 20:01:26

3 Replies

72403 Views

Last post by agner
2023-04-18, 6:09:05
AMD Zen 4 Ryzen 7000 series with AVX-512 support

Last post by Vladislav_152378 « 2023-04-07, 22:17:58
Replies: 10
by mniem » 2022-08-02, 20:53:36
1

2
10 Replies

223396 Views

Last post by Vladislav_152378
2023-04-07, 22:17:58
AMD 'heavy equipment' CPUs

Last post by DamageX « 2022-12-27, 20:41:33
Replies: 1
by DamageX » 2022-12-05, 20:01:05

1 Replies

52577 Views

Last post by DamageX
2022-12-27, 20:41:33
Question about your Testp

Last post by agner « 2022-11-20, 6:22:08
Replies: 1
by hinggor » 2022-11-20, 2:22:48

1 Replies

52686 Views

Last post by agner
2022-11-20, 6:22:08
Which C++ compiler is best?

Last post by Rustom « 2022-09-19, 12:31:12
Replies: 3
by agner » 2022-08-09, 8:35:04

3 Replies

83925 Views

Last post by Rustom
2022-09-19, 12:31:12
C++ Vector class library

Last post by agner « 2022-08-07, 9:53:28
Replies: 5
by agner » 2019-12-30, 7:15:57

5 Replies

120280 Views

Last post by agner
2022-08-07, 9:53:28
inconsistent port usage about CALL vs PUSH&JMP

Last post by katsu « 2022-07-23, 13:49:46
Replies: 2
by katsu » 2022-07-23, 8:46:28

2 Replies

76343 Views

Last post by katsu
2022-07-23, 13:49:46
Intel's new Chimera: Alder Lake

Last post by agner « 2022-06-28, 6:35:28
Replies: 14
by agner » 2022-04-24, 16:56:59
1

2
14 Replies

735779 Views

Last post by agner
2022-06-28, 6:35:28
AVX or SSE code performance question

Last post by agner « 2022-04-30, 12:02:34
Replies: 1
by enuinc » 2022-04-30, 8:18:00

1 Replies

59999 Views

Last post by agner
2022-04-30, 12:02:34
INTEL X86，why do align access and non-align access have same performance?

Last post by agner « 2021-12-20, 12:28:04
Replies: 1
by hankin » 2021-12-20, 9:03:58

1 Replies

60158 Views

Last post by agner
2021-12-20, 12:28:04
ARMV8 fundamental data type atomicity

Last post by hankin « 2021-12-20, 11:36:13
Replies: 2
by hankin » 2021-12-10, 16:34:48

2 Replies

67616 Views

Last post by hankin
2021-12-20, 11:36:13
Forwardcom: A project towards the ideal computer

Last post by agner « 2021-11-06, 16:04:41
Replies: 7
by agner » 2019-12-30, 6:53:45

7 Replies

174223 Views

Last post by agner
2021-11-06, 16:04:41
Clarification on Intel Haswell microarchitecture pipeline

Last post by cianfa72 « 2021-11-04, 16:12:01
Replies: 2
by cianfa72 » 2021-11-03, 18:08:01

2 Replies

71052 Views

Last post by cianfa72
2021-11-04, 16:12:01
Memory load μops on P4/P4E microarchitecture

Last post by cianfa72 « 2021-11-04, 15:50:17
Replies: 2
by cianfa72 » 2021-11-04, 10:32:24

2 Replies

70067 Views

Last post by cianfa72
2021-11-04, 15:50:17
Intel Floating Point Executing 3 to 4 Times Faster Than it Should. MAKES NO SENSE

Last post by agner « 2021-11-01, 12:09:04
Replies: 4
by Elhardt » 2021-10-04, 5:09:12

4 Replies

100545 Views

Last post by agner
2021-11-01, 12:09:04

New Topic

40 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum