[LU-1339] CRC32 checksumming acceleration using PCLMULQDQ instruction Created: 20/Apr/12 Updated: 20/Nov/12 Resolved: 25/Jul/12 |
|
| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.3.0 |
| Type: | Improvement | Priority: | Major |
| Reporter: | Alexander Boyko | Assignee: | WC Triage |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Rank (Obsolete): | 4553 |
| Description |
|
implement CRC32 checksumming acceleration using PCLMULQDQ instruction |
| Comments |
| Comment by Alexander Boyko [ 20/Apr/12 ] |
|
Gerrit request http://review.whamcloud.com/2586 Crypto hash algorithm adler32 speed = 2124 MB/s Crypto hash algorithm crc32 speed = 2057 MB/s ..... Crypto hash algorithm crc32c speed = 2203 MB/s |
| Comment by Nathan Rutman [ 29/May/12 ] |
|
Alexander, can you fix the build error reported in Gerrit |
| Comment by Andreas Dilger [ 09/Jul/12 ] |
|
I noticed in the i686 build log the following #warning introduced by this patch: libcfs/libcfs/crc32-pclmul_asm.S:164:2: warning: #warning Using 32bit code support However, we normally build with -Werror, so this should introduce a build error. Please submit a patch to remove this #warning line, while we figure out why -Werror is not catching this problem. |
| Comment by Alexander Boyko [ 09/Jul/12 ] |
|
Maybe AS don`t use -Werror option. |
| Comment by Alexander Boyko [ 09/Jul/12 ] |
| Comment by Peter Jones [ 25/Jul/12 ] |
|
Landed for 2.3 |
| Comment by Nathan Rutman [ 20/Nov/12 ] |
|
Xyratex MRP-314 |