tcprtt: support extension summary(average RTT)
authorzhenwei pi <pizhenwei@bytedance.com>
Mon, 21 Jun 2021 07:06:58 +0000 (15:06 +0800)
committeryonghong-song <ys114321@gmail.com>
Tue, 22 Jun 2021 18:47:06 +0000 (11:47 -0700)
commit5057944103d9e0094192a825aadcf7e0c24eb7a3
tree807fa2e4d807d076b44e2d923ae5a759949ad334
parentf7e98988207909ca007764046d32f02dc9607499
tcprtt: support extension summary(average RTT)

Support -e/--extension to show extension summary info, currently
only average RTT is supported.
Also some minor changes to make histogram report easy to read.
Orinally tcprtt does't show lable/header without -b/-B option,
currently it shows like this:

All Addresses = *******

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
man/man8/tcprtt.8
tools/tcprtt.py
tools/tcprtt_example.txt