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Sysbench weird results when overclocked on Raspberry Pi 3

I tried overclocking my raspberry pi 3 from 1.2GHz to 1.7GHz and according to the command lscpu this worked. However I ran sysbench at 1.2GHz and at 1.7GHz and the total time result, when running at 1.7GHz was two times larger than at 1.2GHz and as I understand it my overclocking is backfiring. Am I misunderstanding something or doing something wrong? For more information: Sysbench command I used: “sysbench —test=cpu —cpu-max-prime=30000 —num-threads=4 run” I also have a fan cooling system and a copper heatsink on th RA

27th Jun 2018, 9:44 PM
Gleb Koval
Gleb Koval - avatar
2 Réponses
+ 8
Try the raspberry pi forums? Also please do not post duplicates. You asked this same question yesterday. https://www.sololearn.com/Discuss/1370513/?ref=app
27th Jun 2018, 11:21 PM
jay
jay - avatar
+ 1
sorry, I could not fit this into the post, here is how I overclocked it (I added this text to /boot/config.txt): gpu_freq=600 arm_freq=1700 sdram_freq=700 gpu_mem=200 over_voltage=8 over_voltage_sdram=7 disable_splash=1 temp_limit=90 the temp_limit didn’t affect anything anyway because my cooling kept it below 70C
27th Jun 2018, 9:50 PM
Gleb Koval
Gleb Koval - avatar