Commit graph

123 commits

Author SHA1 Message Date
Andrea Mazzoleni
ebfffa26d2 Remove the unused number of data disks from the vector allocation
The same addressing rules are applied to the parity disks because
they are used as data disks during recovery operations.
2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
3d598eb9f8 Inject variable page-offset noise to disk buffer displacement to mitigate prefetcher contention 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
f181eb96e7 Use the optimal displacement depending on the number of disks 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
8f45779253 Change RAID AVX512/GFNI functions to use forward iterations 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
26a1e3efda Remove the special case of a single data disk when not strictly required 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
87db4d8778 Remove unused level 0 from the pshufb table 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
c15269d271 Change the AVX512BW generation to use pshufb also for Q parity 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
44bd4d7b13 Extend the pshufb table to include the Q parity coefficients 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
1021288edd New displacement benchmarks 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
4d8138e9bd Simplify GFNI implementations 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
af008b220f Always build RAID test with USE_RAID_AES 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
fabaa8d1b3 Assume the assembler supports all x86 SSE/AVX instructions 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
312e7212c4 Extend the RAID regression test to detect unset parity 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
1dd1845a5b Add support for AVX2 GFNI 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
7602094692 Disable AVX512 on CPUs with narrow shuffle ports or double-pumped 256-bit datapath 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
46f152daf2 Revise the RAID library Makefile 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
80dfbfd6de Be more clear when GFNI is really used 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
99f8ec9675 Optimize AVX512 gen1 parity with the vpternlogq instruction 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
f691c6f90a Add tables for the AES Polynomial 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
bef65f1a51 Comment about the RAID optimizations 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
f4318ae604 Use a simpler approach in the new AVX512 generation functions 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
ade2c6c96d Preliminary support for AVX512GFNI 2026-07-13 11:03:56 +02:00
Andrea Mazzoleni
20d7a9d513 Change commenting style 2026-07-13 11:03:55 +02:00
Andrea Mazzoleni
21e2f0455d Add detection of AVX2GFNI 2026-07-13 11:03:55 +02:00
Andrea Mazzoleni
19ba549ea4 Add more AVX512 functions for parity 2026-07-13 11:03:55 +02:00
Andrea Mazzoleni
5050c52d15 Preliminary support for ADVX512 2026-07-13 11:03:55 +02:00
Christoph Hellwig
9e7dfb3a78 Make all RAID forwarders static and local using a new registration interface
Co-authored-by: Andrea Mazzoleni <amadvance@gmail.com>
2026-07-13 11:03:55 +02:00
Andrea Mazzoleni
562d59d9c8 Avoid a folding VLA warning in clang 2026-07-06 15:57:49 +02:00
Andrea Mazzoleni
ae9b472898 Add detection of AVX512BW and AVX512GFNI 2026-04-16 00:13:51 +02:00
Andrea Mazzoleni
b709371d2d Fix typos in the comment of the raid library
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2026-04-15 10:53:25 +02:00
Andrea Mazzoleni
0d0431a907 Simpler Copyright string 2026-04-09 17:56:49 +02:00
Christoph Hellwig
60269a1236 Use SPDX (https://spdx.dev/) tags to identify the license used for each
file, and a COPYING file explaining the licensing scheme, with the actual
licenses listed in the LICENSES/ directory.
2026-04-02 16:01:37 +02:00
Andrea Mazzoleni
e80734fc4c Fix typos 2026-01-22 16:13:25 +01:00
Andrea Mazzoleni
f7798b2357 Update performance test of raid.c
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2025-10-14 23:26:34 +02:00
Andrea Mazzoleni
13a4872e69 Revise the top comment of raid.c
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2025-10-13 17:32:55 +02:00
Andrea Mazzoleni
56c4076e23 Avoid a warning about function pointer conversion. No functional changes 2025-01-23 15:51:59 +01:00
Andrea Mazzoleni
607564c5fe Fix some typos 2023-12-09 10:45:26 +01:00
Jens Kühnel
6b3ac2a6cb Update address of FSF in GPLv2 2023-08-09 14:44:48 +02:00
Andrea Gelmini
2dacb15516 Fix typos
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
2022-07-21 14:48:48 +02:00
Andrea Gelmini
986e9b4131 Fix typos 2020-05-26 12:50:15 +02:00
Andrea Mazzoleni
21241c5078 Preliminary advise support 2016-05-15 14:50:59 +02:00
Andrea Mazzoleni
9430106c71 Allow to disable inline assembly from configure
This is required for the -fsanitize options that don't
support inline assembly statements.
2016-01-09 11:19:52 +01:00
Andrea Mazzoleni
cffa2f0c10 Better Atom prediction of fastest RAID implementation 2015-11-21 09:08:53 +01:00
Andrea Mazzoleni
77117b1cd5 Add some more warning checks, and fix the ones reported 2015-08-05 09:42:11 +02:00
Andrea Mazzoleni
1c06674d1a Some comments about x86 optimizations 2015-06-20 16:47:50 +02:00
Andrea Mazzoleni
2ae9d8d41a Add recognition of new Atom CPUs 2015-06-04 22:38:32 +02:00
Andrea Mazzoleni
35b1b08b6c Clean the cpu.h header 2015-03-30 23:36:36 +02:00
Andrea Mazzoleni
8a0d49b21e Fix the selftest due missing return value 2015-03-30 22:23:23 +02:00
Andrea Mazzoleni
0ac0a8eceb Extend the raid regression test with some more case 2015-03-30 18:57:33 +02:00
Andrea Mazzoleni
dd888c30db Add better checks at the raid funtions 2015-03-27 08:44:20 +01:00