OCI無料枠で試していたのですが、いつまでたってもA1-Flexシェイプが立ち上がらないので、有償プランに切り替えました。有償プランに切り替えたからと言ってAlways Free枠は変わらないので実質、料金は発生しません。
有償（個人）にアップグレードしたらA-Flex 4core 24GBメモリのインスタンスがサクッと立ち上がりました(笑)
という訳で、早速ベンチマークをしてみました。
素晴らしい！ Standard.E2.1.Microの20倍！ GCP e2-microの72倍のパワー \(^_^)/
System Benchmarks Index Score OCI A1-Flex 4ocpu 24GB Memory: 5512.4OCI Standard.E2.1.Micro 1/8ocpu 1GB Memory: 268.1GCP e2-micro 0.25vCPU 1GB Memory: 76.3
BYTE UNIX Benchmarks (Version 6.0.0)
System: a1-test: GNU/Linux
OS: GNU/Linux -- 6.14.0-1009-oracle -- #9~24.04.1-Ubuntu SMP Mon Jun 30 18:20:41 UTC 2025
Machine: aarch64 (aarch64)
Language: en_US.utf8 (charmap="ANSI_X3.4-1968", collate="ANSI_X3.4-1968")
CPU 0: ARM Neoverse-N1 (50.0 bogomips)
CPU Features: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
CPU 1: ARM Neoverse-N1 (50.0 bogomips)
CPU Features: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
CPU 2: ARM Neoverse-N1 (50.0 bogomips)
CPU Features: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
CPU 3: ARM Neoverse-N1 (50.0 bogomips)
CPU Features: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp
07:22:19 up 15 min, 1 user, load average: 0.19, 0.08, 0.03; runlevel Sep
------------------------------------------------------------------------
Benchmark Run: Fri Sep 19 2025 07:22:19 - 07:50:14
4 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 46864852.7 lps (10.0 s, 7 samples)
Double-Precision Whetstone 8586.2 MWIPS (9.9 s, 7 samples)
Execl Throughput 3146.3 lps (29.8 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 1137974.0 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 320778.0 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 2427991.5 KBps (30.0 s, 2 samples)
Pipe Throughput 1814774.8 lps (10.0 s, 7 samples)
Pipe-based Context Switching 101618.6 lps (10.0 s, 7 samples)
Process Creation 5683.8 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 9340.7 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 3161.0 lpm (60.0 s, 2 samples)
System Call Overhead 1403721.6 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 46864852.7 4015.8
Double-Precision Whetstone 55.0 8586.2 1561.1
Execl Throughput 43.0 3146.3 731.7
File Copy 1024 bufsize 2000 maxblocks 3960.0 1137974.0 2873.7
File Copy 256 bufsize 500 maxblocks 1655.0 320778.0 1938.2
File Copy 4096 bufsize 8000 maxblocks 5800.0 2427991.5 4186.2
Pipe Throughput 12440.0 1814774.8 1458.8
Pipe-based Context Switching 4000.0 101618.6 254.0
Process Creation 126.0 5683.8 451.1
Shell Scripts (1 concurrent) 42.4 9340.7 2203.0
Shell Scripts (8 concurrent) 6.0 3161.0 5268.4
System Call Overhead 15000.0 1403721.6 935.8
========
System Benchmarks Index Score 1551.3
------------------------------------------------------------------------
Benchmark Run: Fri Sep 19 2025 07:50:14 - 08:18:11
4 CPUs in system; running 4 parallel copies of tests
Dhrystone 2 using register variables 187363319.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 34304.4 MWIPS (9.9 s, 7 samples)
Execl Throughput 9255.9 lps (29.8 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 4417831.3 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 1283904.0 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 7855700.9 KBps (30.0 s, 2 samples)
Pipe Throughput 7317913.7 lps (10.0 s, 7 samples)
Pipe-based Context Switching 962856.6 lps (10.0 s, 7 samples)
Process Creation 20808.0 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 26487.7 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 3423.5 lpm (60.0 s, 2 samples)
System Call Overhead 5606134.9 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 187363319.6 16055.1
Double-Precision Whetstone 55.0 34304.4 6237.2
Execl Throughput 43.0 9255.9 2152.5
File Copy 1024 bufsize 2000 maxblocks 3960.0 4417831.3 11156.1
File Copy 256 bufsize 500 maxblocks 1655.0 1283904.0 7757.7
File Copy 4096 bufsize 8000 maxblocks 5800.0 7855700.9 13544.3
Pipe Throughput 12440.0 7317913.7 5882.6
Pipe-based Context Switching 4000.0 962856.6 2407.1
Process Creation 126.0 20808.0 1651.4
Shell Scripts (1 concurrent) 42.4 26487.7 6247.1
Shell Scripts (8 concurrent) 6.0 3423.5 5705.9
System Call Overhead 15000.0 5606134.9 3737.4
========
System Benchmarks Index Score 5512.4これが無料ですからね。暇を見てサーバ引っ越そうかな 🙂 難点は、x86アーキじゃないのでバイナリ互換ないんですよね。設定はほぼ引き継げると思うけど。作ってデータ移行が必要だからちょっとめんどい。