Difference between MTU and Burst at Linux-TC

Question

I did a small experiment by using Linux-tc

My question is what is the difference between Burst and MTU at Linux tc-htb

It seems that they have a same effect. They change a only burst value.

(we can see by using this command tc -s -s -d c ls dev <iface> )

However, two page say differently.

1) HTB - Traffic control How to said

burst max bytes burst which can be accumulated during idle period {computed}

mtu max packet size we create rate map for {1600}

2) MAN tc-tbf page said

burst Also known as buffer or maxburst. Size of the bucket, in bytes. ...

mtu/minburst Specifies the size of the peakrate bucket.

Is it right that they have a different explanation but same effect?

Thank you for reading!