Performance Metrics - Phoronix Test Suite

The file server's BIOS settings allow it boot off a USB key. We had no trouble doing the same with a portable installation of Ubuntu 14.04 (kernel version 3.16).

Database Benchmarks

The first test we look at involves determination of the time taken to perform 12500 record insertions into an indexed database. We use SQLite v3.7.3. SQLite performance depends to a large extent on the capabilities of the CPU. Note that the C2750D4I system has a 20W TDP and has more cores / better clocks compared to the C2550D4I in the Nimbus 400. Benchmarks from other systems can be viewed on

SQLite v3.7.3 - Transactions Efficiency

The pgbench database benchmark involves recording the transaction rate for database operations using PostgreSQL. Unlike SQLite insertions-only test, pgbench is based on TPC-B, running five SELECT, UPDATE and INSERT commands per transaction.

SQLite v3.7.3 - Transactions Efficiency

Benchmarks from other systems can be viewed on

Web Server Benchmarks

The NGINX and Apache benchmarks record the number of static web page requests that can be serviced in a given time interval. It gives an idea of the load that can be handled if a given system were to be configured as a web server. The test load consists of a total of 500K requests (for NGINX) / 1M requests (for Apache) with 100 concurrent ones.

NGINX Benchmark

Apache Benchmark

Benchmark numbers for both of these are available on (NGINX, Apache).

TCP Loopback

The efficiency of the networking stack in the system (not to be confused with the hardware network adapter itself) can be determined by measures the loopback TCP performance. We record the time taken to transfer 10GB of data via loopback.

Loopback TCP Network Performance

Given that we have the same networking stack for a given OS release across different hardware configurations, the efficiency is going to vary based solely on the CPU capabilities again. Benchmarks from other systems can be viewed on


CacheBench is an artificial benchmark to determine the performance of the cache and DRAM components in a system. It consists of three profiles - reads, writes and read/modify/writes. The bandwidth is recorded for each profile, with bigger numbers indicating better performance.

CacheBench - Read

CacheBench - Write

CacheBench - Read/Modify/Write

The numbers depend on the internal cache access speeds as well as the speed of the DRAM in the system. Benchmarks from other systems can be viewed on


The system memory is tested out using the stream benchmark. The STREAM benchmark is a simple, synthetic benchmark designed to measure sustainable memory bandwidth (in MB/s) and a corresponding computation rate for four simple vector kernels (Copy, Scale, Add and Triad).

Stream - Copy

Stream - Scale

Stream - Add

Stream - Triad

7-Zip Compression

The 7-Zip compression benchmark records the MIPS for the compression mode. This is the same benchmark that we use in the evaluation of mini-PCs, except that this is based on the Linux version. Higher MIPS ratings correspond to better performance, and the numbers are primarily based on the performance of the CPU in the system.

7-Zip Compression MIPS

Benchmark numbers for other systems can be viewed on

Linux Kernel Compilation

The timed Linux kernel compilation benchmark records the time taken to build the Linux 3.18 kernel. It is a good multi-discipline benchmark, stressing multiple aspects of the system including the DRAM, CPU and, to a certain extent, even the storage.

Timed Linux Kernel Compilation

Benchmark numbers for other systems can be viewed on


C-Ray is a simple raytracer designed to evaluate the floating point performance of a CPU. This is a multi-threaded test, and the time taken to complete the routine is recorded.

C-Ray Raytracing Time

Benchmark numbers for other systems can be viewed on

Setup Impressions and Platform Analysis Performance Metrics - Storage Subsystem
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  • jamyryals - Wednesday, August 12, 2015 - link

    This CPU has the "AES New Instructions" which I think would offload most of the encryption costs. In practice, I don't have any experience with it to know either way.
  • leexgx - Wednesday, August 12, 2015 - link

    all the encryption would be done at very high speed with AES hardware in the CPU (assuming the encryption software uses AES like truecrypt does)
  • WithoutWeakness - Wednesday, August 12, 2015 - link

    Will you be doing a review of the Nimbus 2000? I've heard it's the fastest model yet!
  • overzealot - Tuesday, August 18, 2015 - link

    You're a server, Harry!
  • toyotabedzrock - Wednesday, August 12, 2015 - link

    The idle power usage seems very high. Is that while running Windows or Linux?
  • ganeshts - Wednesday, August 12, 2015 - link

    That was running Windows Server 2012 R2 with 4x SSDs in the drive bays.
  • bobbozzo - Friday, August 14, 2015 - link


    1. Is the PSU ATX, SFX, or some other standard form factor?

    2. is there any dust filter in the front of the case?

  • DanNeely - Friday, August 14, 2015 - link

    It's an ATX PSU. While not a filter per-se the door is a fine mesh that does block a fair amount of dust.

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