v7.2.1 Stable (x86_64)

Benchmark Linux Without The Guesswork

Bash scripts using dd are lying to you. Calyx uses io_uring & O_DIRECT for 100% raw disk metrics. Zero dependencies.

curl -fsL https://calyx.pages.dev/run | bash
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No dependencies
x86_64 Only
Single Binary
root@oracle-linux: ~
root@oracle-linux:~$ ./calyx
--------------------- Calyx - Rapid VPS Profiler (v7.2.1) ----------------------
-> CPU & Hardware CPU Model : AMD Ryzen 5 7535HS with Radeon Graphics CPU Cores : 4 @ 2820.5 MHz AES-NI : ✓ Enabled Virtualization : Hyper-V -> System Info OS : Oracle Linux Server 10.1 Kernel : 6.12.0-106.55.4.2.el10uek.x86_64 TCP CC : bbr -> Storage & Memory Total Disk : 60.2 GB (12.1 GB Used) ZSwap : Enabled -> Network ISP : AS7713 PT TELKOM INDONESIA Location : Bandar Lampung / ID
Running I/O Test (1GB File)...
I/O Speed (Average) : Write 1193.5 MB/s Read 4536.1 MB/s
Note: Write speed reflects real disk commit speed (O_DIRECT).
Downloading Speedtest CLI...
Speedtest.net (Auto) 48.00 Mbps 25.15 Mbps 19.99 ms Singapore, SG 76.91 Mbps 22.85 Mbps 26.15 ms
Finished in : 4 min 4 sec

Precision over Estimation

Why native code beats legacy bash scripts.

Real Disk Speed

Bash scripts use dd which often hits RAM cache. Calyx uses io_uring + Direct I/O to test the actual drive speed.

Native Code

No interpreter overhead. No waiting for awk or sed strings. Calyx talks directly to the kernel via syscalls.

No Dependencies

Doesn't need python, wget, or unzip installed. It's a static binary that runs on any modern Linux system.

Memory Safe

Built with modern C++23 standards. Handles extraction and network calls safely without piping to shell.

Under the Hood

Core Logic Bench.sh (Bash) Calyx (Native)
Disk Benchmark dd if=/dev/zero io_uring + O_DIRECT
Accuracy Often skewed by RAM Buffer Raw Disk Throughput
Execution Calls external binaries (awk, wget) Self-contained System Calls
Requirements curl, wget, free, tar None (Static Binary)