First one. I found this page in internet https://www.element14.com/community/com ... hmark-ever
And I was intrigued and wondered how my Pi 3 gonna run with this benchmark. Tried this benchmark and had surprised. For example you can test it as well.
Code: Select all
sudo apt-get install sysbench
sysbench --num-threads=4 --test=cpu --cpu-max-prime=20000 --validate run
I also have Raspberry Pi 2 and ran this benchmark as wellTest execution summary:
total time: 242.0059s
total number of events: 10000
total time taken by event execution: 967.8505
per-request statistics:
min: 95.43ms
avg: 96.79ms
max: 155.89ms
approx. 95 percentile: 98.96ms
Threads fairness:
events (avg/stddev): 2500.0000/39.62
execution time (avg/stddev): 241.9626/0.03
Shocked! This test on Pi2 shows almost SAME result as on Pi3.Test execution summary:
total time: 255.5132s
total number of events: 10000
total time taken by event execution: 1021.8823
per-request statistics:
min: 77.96ms
avg: 102.19ms
max: 168.08ms
approx. 95 percentile: 118.15ms
Threads fairness:
events (avg/stddev): 2500.0000/7.45
execution time (avg/stddev): 255.4706/0.02
All the tests have given figures of two times worse than that of the author of the article. Not for 5-10% difference, but 100%. TWO TIMES! How it possible?
Okay. Probably this test is pretty subjective. Lets try another benchmark test.Bench test from article:
Total time 119.4716 !!!!
per request statistics
min 47.69 ms
avg 47.78 ms
max 59.04 ms
For this test you need install pigz.
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sudo apt-get install pigz
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dd bs=1k count=1M if=/dev/urandom |pigz -p 8 - > /dev/null
I bought my Raspberries Pi3 on Amazon. My old friend from Europe bought Pi3 in the market in his country. And we started these tests on the same OS versions with same kernel and on the same boards. Everything was completely same.pi@raspberrypi:~ $ dd bs=1k count=1M if=/dev/urandom |pigz -p 8 - > /dev/null
1048576+0 records in
1048576+0 records out
1073741824 bytes (1.1 GB) copied, 458.207 s, 2.3 MB/s
His test shows different result with my Pi3. And his Pi3 two times faster than mine.
His 'sysbench' test also shows better performance for TWO times! AGAIN FOR TWO TIMES!pi@raspberrypi:~/test $ dd bs=1k count=1M if=/dev/urandom |pigz -p 8 - > /dev/null
1048576+0 records in
1048576+0 records out
1073741824 bytes (1.1 GB) copied, 240.172 s, 4.5 MB/s !!!! TWO TIMES MORE !
And rest of other also same with article.total time: 112.6931s
I have _four_(4) RPi3 and they show completely same results. All these Pi3 I bought on Amazon and Ebay in the USA.
I do not want to believe that I was cheated. And bought something for which I did not pay. But, seems that for the US market and European there different boards are made. I would like to hear the explanation from those who designed, produces and sells this boards. What do you think guys?
Probably I did somewhere incorrectly, or configured, or installed, or ran? Maybe. But I do not think so.