Sysbench weird results when overclocked on Raspberry Pi 3

Question

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

Answer 1

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

Answer 2

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