Spectre、Meltdown　ベンチまとめ Ryzen7 1800X編

Linux Fedora Windows 自作PC AMD

パッチ前後（と思われる）環境で結果を比較
環境：Ryzen7 1800X + RADEON-R7SSD-240G

Benchmark Run: 16 CPUs; 1 parallel process

Test 4.14.8-300.fc27.x86_64 4.14.13-300.fc27.x86_64
Dhrystone 2 using register variables 3933.5 3940.5
Double-Precision Whetstone 589.4 593.7
Execl Throughput 1281.7 1369.4
File Copy 1024 bufsize 2000 maxblocks 3124.9 3021.5
File Copy 256 bufsize 500 maxblocks 2096.1 2001.8
File Copy 4096 bufsize 8000 maxblocks 5298.4 5127.1
Pipe Throughput 1873.3 1600.7
Pipe-based Context Switching 439.8 456
Process Creation 722.1 961.5
Shell Scripts (1 concurrent) 1418.4 1490.6
Shell Scripts (8 concurrent) 6508.4 6703.2
System Call Overhead 2920.3 2336.2
System Benchmarks Index Score: 1854.4 1852

Benchmark Run: 16 CPUs; 16 parallel processes

Test 4.14.8-300.fc27.x86_64 4.14.13-300.fc27.x86_64
Dhrystone 2 using register variables 33908 33782.8
Double-Precision Whetstone 12248 12251
Execl Throughput 11006.4 11561.5
File Copy 1024 bufsize 2000 maxblocks 2093.5 2084.2
File Copy 256 bufsize 500 maxblocks 1329.9 1310
File Copy 4096 bufsize 8000 maxblocks 4613.2 4619.5
Pipe Throughput 19392.5 18935.7
Pipe-based Context Switching 8460.9 9155.2
Process Creation 7473.5 6338.6
Shell Scripts (1 concurrent) 12798.3 12698.6
Shell Scripts (8 concurrent) 13923.6 13559
System Call Overhead 6731.2 6709
System Benchmarks Index Score: 8153.8 8072.8

CPU-Z

Test 1月パッチ前 パッチ後 BIOS3404
Single 2240 2321 2169
Multi 19100 19033 19004

CrystalDiskMark

Read Test 1月パッチ前 パッチ後 BIOS3404
Seq Q32T1 555.8 556.3 551.9
4KiB Q8T8 378.1 378.0 377.9
4KiB Q32T1 349.9 339.1 342.7
4KiB Q1T1 27.39 27.25 27.03
Write Test 1月パッチ前 パッチ後 BIOS3404
Seq Q32T1 530.4 532.8 525.9
4KiB Q8T8 387.1 390.4 389.8
4KiB Q32T1 227.0 213.1 223.4
4KiB Q1T1 99.44 95.71 95.90