Satoru Takeuchi satoru-takeuchi
satoru-takeuchi
/ vmlinux_disas-v4.11-rc8
Last active
April 24, 2017 10:36
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| ffffffff8159a7b0 <raid6_avx21_gen_syndrome>: | |
| ffffffff8159a7b0: 8d 47 fd lea -0x3(%rdi),%eax | |
| ffffffff8159a7b3: 55 push %rbp | |
| ffffffff8159a7b4: 48 98 cltq | |
| ffffffff8159a7b6: 48 89 e5 mov %rsp,%rbp | |
| ffffffff8159a7b9: 41 57 push %r15 | |
| ffffffff8159a7bb: 48 83 c0 01 add $0x1,%rax | |
| ffffffff8159a7bf: 41 56 push %r14 | |
| ffffffff8159a7c1: 41 55 push %r13 | |
| ffffffff8159a7c3: 41 54 push %r12 |
satoru-takeuchi
/ avx2_test.s
Created
April 24, 2017 10:12
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| ... | |
| 0000000000400510 <main>: | |
| 400510: 55 push %rbp | |
| 400511: 53 push %rbx | |
| 400512: bb 80 10 60 00 mov $0x601080,%ebx | |
| 400517: 48 83 ec 08 sub $0x8,%rsp | |
| 40051b: e8 90 ff ff ff callq 4004b0 <__errno_location@plt> | |
| 400520: 48 89 c5 mov %rax,%rbp | |
| 400523: ba 00 10 00 00 mov $0x1000,%edx | |
| 400528: be 00 10 00 00 mov $0x1000,%esi |
satoru-takeuchi
/ avx2_test.c
Last active
April 24, 2017 08:22
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| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <errno.h> | |
| #include <err.h> | |
| #define PAGESIZE 4096 | |
| #define DISKS 4 | |
| typedef unsigned char u8; | |
| typedef unsigned long u64; |
satoru-takeuchi
/ linux v4.11-rc8 panic
Created
April 24, 2017 02:58
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| ... | |
| [ 0.227720] raid6: sse2x1 gen() 7985 MB/s | |
| [ 0.295709] raid6: sse2x1 xor() 8181 MB/s | |
| [ 0.363706] raid6: sse2x2 gen() 17531 MB/s | |
| [ 0.431699] raid6: sse2x2 xor() 11098 MB/s | |
| [ 0.499693] raid6: sse2x4 gen() 18509 MB/s | |
| [ 0.567688] raid6: sse2x4 xor() 10177 MB/s | |
| [ 0.571692] invalid opcode: 0000 [#1] SMP | |
| [ 0.572312] Modules linked in: | |
| [ 0.572822] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.11.0-rc8-ktest #1 |
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