Что: 417da01d501f30561951ef53afc8190dc85ec4aa
Когда: 2022-01-04 15:36:12+03:00
Темы: bsd tip
ministat
https://klarasystems.com/articles/freebsd-tcp-performance-system-controls/
В FreeBSD много где встречал красивых ASCII графиков наподобие:
$ ministat -s -w 60 iguana chameleon
x iguana
+ chameleon
+------------------------------------------------------------+
|x * x * + + x +|
| |________M______A_______________| |
| |________________M__A___________________| |
+------------------------------------------------------------+
N Min Max Median Avg Stddev
x 7 50 750 200 300 238.04761
+ 5 150 930 500 540 299.08193
No difference proven at 95.0% confidence
Делаются штатной ministat утилитой из коробки.
#/bin/sh
for size in 65k 1m ; do
for x in 3 10 20 40 ; do
sudo sysctl net.inet.tcp.initcwnd_segments=${x};
for y in $(jot 20) ; do do
/usr/bin/time -a -o iperf3-iw${x}-${size}.out iperf3 -c iperf3.example.com -n ${size}
sudo -v
done
done
done
$ ministat iperf3-iw3.out iperf3-iw10.out iperf3-iw20.out iperf3-iw40.out
x iperf3-iw3.out
+ iperf3-iw10.out
* iperf3-iw20.out
% iperf3-iw40.out
+--------------------------------------------------------------------------+
| * + % x |
| * + % x |
| * + % x x |
| * + % % x x |
| * + % % x x |
| * + % % x x |
| * * % % x x |
| * * % % x x |
| * * @ % % x x |
|* * * @ % % # x x x|
| |_MA__||__A__| |__M__A____| |______AM_____| |
+--------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 20 0.86 0.9 0.87 0.868 0.0095145318
+ 20 0.81 0.83 0.82 0.82 0.0045883147
Difference at 95.0% confidence
-0.048 +/- 0.00478065
-5.52995% +/- 0.52619%
(Student's t, pooled s = 0.00746924)
* 20 0.8 0.82 0.81 0.8115 0.0048936048
Difference at 95.0% confidence
-0.0565 +/- 0.00484226
-6.50922% +/- 0.529354%
(Student's t, pooled s = 0.0075655)
% 20 0.83 0.86 0.84 0.8435 0.0074515982
Difference at 95.0% confidence
-0.0245 +/- 0.00546953
-2.82258% +/- 0.619167%
(Student's t, pooled s = 0.00854554)
Сгенерирован: SGBlog 0.34.0