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77 lines
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77 lines
2.0 KiB
Plaintext
#use wml::template Title="echoping Home Page"
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<!-- $Id$ -->
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<P>"echoping" is a small program to test (approximatively) performances of a
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remote host by sending it TCP "echo" (or other protocol) packets.
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<P>To install it, see the INSTALL file. Or type "make" if you're in a
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hurry :-) <A HREF="ftp://ftp.internatif.org/pub/unix/echoping">Download</A>, if you wish.
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<P>To use it, simply:
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<PRE>
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% echoping machine.somewhere.org
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</PRE>
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<P>or use the options before the machine name (see the man page).
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<P>See the DETAILS file for various traps when benchmarking networks,
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specially with this program
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<P>In any case, be polite: don't bother the remote host with many repeated
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requests, especially with large size. Ask for permission if you often
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test hosts which aren't yours.
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<P>Current features:
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<UL>
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<LI>uses the protocols echo, discard, chargen or HTTP,
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<LI>uses UDP instead of TCP for the protocols which accept it (like echo),
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<LI>can repeat the test and display various measures about it,
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<LI>can use T/TCP on systems which support it.
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</UL>
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<P>Examples of output:
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<OL>
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<LI>(Simple test with 1000 bytes echo TCP packets)
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<PRE>
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% echoping -v -s 1000 mycisco
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This is echoping, version 2.0.
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Trying to connect to internet address 10.99.64.1 to transmit 256 bytes...
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Connected...
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Sent (1000 bytes)...
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Checked
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Elapsed time: 0.059597 seconds
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</PRE>
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<LI>(Repeated tests with average and median displayed.)
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<PRE>
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% echoping -n 10 mymachine
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[...]
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Minimum time: 0.170719 seconds (1500 bytes per sec.)
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Maximum time: 0.211176 seconds (1212 bytes per sec.)
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Average time: 0.184577 seconds (1387 bytes per sec.)
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Median time: 0.181332 seconds (1412 bytes per sec.)
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</PRE>
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<LI>(Testing a Web server with an HTTP request for its home page.)
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<PRE>
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% echoping -h / mywww
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Elapsed time: 0.686792 seconds
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</PRE>
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</OL>
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<P>(The exit status is set if there is any problem, so you can use echoping
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to test repeatedly a Web server, to be sure it runs fine.)
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<P>To do for a future version:
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<UL>
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<LI>display other calculations such as standard deviation
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<LI>fix the bugs (everlasting aim)
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</UL>
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