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16 votes

How can I stress test my Raspberry Pi

I wrote the little command-line tool stressberry the other day which stresses your Raspberry, measures the core temperature, and produces nice plots. Install with pip install stressberry --user and ...
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11 votes
Accepted

How fast can GPIO pins toggle?

There are some benchmarks from Henner Zeller's repository on GitHub which claimed that directly outputting data to the GPIO could achieve up to 65.8 MHz on a Raspberry Pi 3 (not B+, mind, but I ...
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  • 6,158
10 votes

How can I stress test my Raspberry Pi

For the CPU and most other things you can use nice -19 stress-ng -c 4 --metrics --timeout 60s For the GPU they suggest GeeXLab at geeks3d.com.
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4 votes

Pi 4 performance against x86 - CI/CD server with Java/Maven

After a few weeks I was finally able to perform a few benchmarks. The results are shown below: Computer Arch CPU RAM Drive Java Build Time ------------- ------ -------- ----...
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4 votes

How fast can GPIO pins toggle?

If you want to synchronously transmit data at 50MHz frequency (that's how I read "pins to be toggled on the schedule of a ~50 mhz FPGA clock"), you will absolutely need to use the same clock source ...
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4 votes

Benchmark on one machine too extreme

Running that command to bench your RPi is not so acurate. That command will burn 1/4 cores of your Pi, thats why you get weirds results. Try to activate all 4 cores at 100%. I coded a small benchmark ...
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  • 871
3 votes

Benchmarking SD cards, read speed is identical

There are several factors to consider, not just card speed. As one person as stated, the Raspberry Pi could be the bottle neck, yet that could be its hardware, or software driver. Be advised, I'm ...
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3 votes
Accepted

Raspberry PI2 what is the maximum sdcard speed?

The SD card interface is unchanged. See Raspberry Pi 2 - FAQ and collated answers
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  • 66.3k
2 votes

Benchmark on one machine too extreme

For what it's worth, I just ran that same test on a stock Raspberry Pi 3B running Raspbian Jessie and it completed in 24.3 seconds. It took 73.4 s on a Model B rev 2 running Wheezy. Unless you have ...
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  • 8,848
2 votes

Can I use Raspberry pi as NAS with Raid 1 and encrypted file systems?

Does Raspberry Pi Model B+ have sufficient CPU and memory to handle both mdadm and encrypted hdds? I'm not an expert on, or even a user of such things, but unless this places significant load on your ...
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  • 55.6k
2 votes

Pi 4 performance against x86 - CI/CD server with Java/Maven

Jenkins and Maven by themselves don't consume any significant CPU time. You need to profile specific implementations of the compilers you're going to use. If you're interested in GCC and don't have a ...
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2 votes
Accepted

How long does it take to build cmake on a raspberry pi 3 A+

I have recently been through this process and wanted to capture the answer for future reference. These benchmarks were taken using a regular stopwatch. Configure: 30 minutes Make: 80 minutes Make ...
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  • 121
1 vote

How fast can GPIO pins toggle?

We have recently benchmarked PIGPIO and RPi.GPIO with regards to the accuracy of reading inputs at different frequencies. The test was performed on a Raspberry Pi 3b, reading signals generated from a ...
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1 vote

Can I use Raspberry pi as NAS with Raid 1 and encrypted file systems?

I expect this can be made to 'work' (you will need 4 x USB-SATA 'dongles'), however throughput will be hopelessly slow ... All 4 USB ports & Etrhernet (on the B+ or a A/B with external Hub) are ...
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  • 31
1 vote

How can I stress test my Raspberry Pi

Either of these two: for i in 1 2 3 4 ; do nice -n 20 openssl speed >/dev/null 2>&1 & done or for i in 1 2 3 4 ; do nice -n 20 cat /dev/zero > /dev/null & done will suffice, ...
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  • 668

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