Srovnávací testy
iperf
Iperf testuje propustnost sítě. Testovat můžete jak TCP tak UDP. Jak na to?
Nainstalujeme:
sudo aptitude install iperf
Na jednom stroji spustíme server:
iperf -s
a na druhém začneme posílat data (například zde 10 streamů po dobu 45s):
iperf -c 192.168.1.2 -t 45 -P 10 -w 64KB -l 128KB
Na obou koncích pak uvidíme výsledky měření:
starenka / % iperf -c 192.168.1.2 -t45 -P10 -fM [70% 04:55:10] ------------------------------------------------------------ Client connecting to 192.168.1.2, TCP port 5001 TCP window size: 0.02 MByte (default) ------------------------------------------------------------ [ 12] local 192.168.1.3 port 49679 connected with 192.168.1.2 port 5001 [ 4] local 192.168.1.3 port 49670 connected with 192.168.1.2 port 5001 [ 5] local 192.168.1.3 port 49671 connected with 192.168.1.2 port 5001 [ 3] local 192.168.1.3 port 49672 connected with 192.168.1.2 port 5001 [ 6] local 192.168.1.3 port 49673 connected with 192.168.1.2 port 5001 [ 7] local 192.168.1.3 port 49674 connected with 192.168.1.2 port 5001 [ 9] local 192.168.1.3 port 49676 connected with 192.168.1.2 port 5001 [ 8] local 192.168.1.3 port 49675 connected with 192.168.1.2 port 5001 [ 10] local 192.168.1.3 port 49677 connected with 192.168.1.2 port 5001 [ 11] local 192.168.1.3 port 49678 connected with 192.168.1.2 port 5001 [ ID] Interval Transfer Bandwidth [ 11] 0.0-45.3 sec 5.25 MBytes 0.12 MBytes/sec [ 12] 0.0-45.5 sec 5.88 MBytes 0.13 MBytes/sec [ 3] 0.0-45.8 sec 3.62 MBytes 0.08 MBytes/sec [ 8] 0.0-46.2 sec 4.25 MBytes 0.09 MBytes/sec [ 10] 0.0-46.2 sec 3.88 MBytes 0.08 MBytes/sec [ 4] 0.0-47.0 sec 4.62 MBytes 0.10 MBytes/sec [ 5] 0.0-47.2 sec 4.75 MBytes 0.10 MBytes/sec [ 9] 0.0-47.6 sec 4.75 MBytes 0.10 MBytes/sec [ 7] 0.0-47.7 sec 3.50 MBytes 0.07 MBytes/sec [ 6] 0.0-48.2 sec 3.12 MBytes 0.06 MBytes/sec [SUM] 0.0-48.2 sec 43.6 MBytes 0.90 MBytes/sec
TTCP
Program TTCP je nástroj pro testování rychlosti spojení mezi dvěma počítači. Program je od stejného autora Mike Muuss , který napsal program ping.
Instalace
Pro Ubuntu jsem bohužel žádný balíček nenašel, proto si zde tento jednoduchý prográmek zkompilujeme sami.
Před kompilací programu je nutné nainstalovat balík build-essential.
Manuální stažení a instalace:
sudo su - mkdir /tmp/install cd /tmp/install wget -c http://ftp.smejdil.cz/ttcp-1.12.tgz tar xvzf ttcp-1.12.tgz cd ttcp gcc ttcp.c -o ttcp install -o root -g root -m 555 ttcp /usr/local/bin/ttcp install -o root -g root -m 444 ttcp.1 /usr/share/man/man1/ttcp.1
Ukázka
Program se na jedné strane pusti s parametrem -r, čímž začne program naslouchat na portu 5001 a pote se na druhé strane pusti program s parametrem -t a začnou se vysílat testovací data.
==================================================================================== 100baseTX <full-duplex> FreeBSD [root@ntb ~]# ttcp -v -r -s -f M -l 25600 ttcp-r: buflen=25600, nbuf=2048, align=16384/0, port=5001 tcp ttcp-r: socket ttcp-r: accept from 192.168.0.2 ttcp-r: 52428800 bytes in 4.46 real seconds = 11.22 MB/sec +++ ttcp-r: 52428800 bytes in 0.25 CPU seconds = 201.52 MB/cpu sec ttcp-r: 36042 I/O calls, msec/call = 0.13, calls/sec = 8088.32 ttcp-r: 0.0user 0.2sys 0:04real 5% 17i+1207d 450maxrss 0+2pf 36035+69csw ttcp-r: buffer address 0x28204000 100baseTX <full-duplex> Linux Ubuntu root@pc# ttcp -v -t -s -f m -l 25600 192.168.0.3 ttcp-t: buflen=25600, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.0.3 ttcp-t: socket ttcp-t: connect ttcp-t: 52428800 bytes in 4.42 real seconds = 90.51 Mbit/sec +++ ttcp-t: 52428800 bytes in 0.06 CPU seconds = 7142.47 Mbit/cpu sec ttcp-t: 2048 I/O calls, msec/call = 2.21, calls/sec = 463.39 ttcp-t: 0.0user 0.0sys 0:04real 1% 0i+0d 0maxrss 0+7pf 358+0csw ttcp-t: buffer address 0x8050000 ==================================================================================== 100baseTX <full-duplex> FreeBSD [root@ntb ~]# ttcp -v -r -s -f M -l 25600 ttcp-r: buflen=25600, nbuf=2048, align=16384/0, port=5001 tcp ttcp-r: socket ttcp-r: accept from 192.168.0.4 ttcp-r: 52428800 bytes in 24.55 real seconds = 2.04 MB/sec +++ ttcp-r: 52428800 bytes in 0.25 CPU seconds = 197.07 MB/cpu sec ttcp-r: 36193 I/O calls, msec/call = 0.69, calls/sec = 1474.12 ttcp-r: 0.0user 0.2sys 0:24real 1% 18i+1329d 450maxrss 0+2pf 36189+53csw ttcp-r: buffer address 0x28204000 IEEE 802.11g Linux Ubuntu root@ntb2:~# ttcp -v -t -s -f m -l 25600 192.168.0.2 ttcp-t: buflen=25600, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.10.4 ttcp-t: socket ttcp-t: connect ttcp-t: 52428800 bytes in 24.39 real seconds = 16.40 Mbit/sec +++ ttcp-t: 52428800 bytes in 0.10 CPU seconds = 3999.76 Mbit/cpu sec ttcp-t: 2048 I/O calls, msec/call = 12.19, calls/sec = 83.97 ttcp-t: 0.0user 0.1sys 0:24real 0% 0i+0d 0maxrss 0+8pf 353+0csw ttcp-t: buffer address 0x608000 ====================================================================================
Odstranění
sudo su - rm /usr/local/bin/ttcp rm /usr/share/man/man1/ttcp.1