mirror of https://framagit.org/bortzmeyer/echoping
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'buffered-read-3-0-BETA'.buffered-read-3-0-BETA
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24 years ago
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commit
73eaf0a3f3
@ -1 +0,0 @@
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-I .
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PAGESHTML=$(shell ls *.wml | grep -v template | sed 's/.wml/.html/' )
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DEST=bortz@echoping.sourceforge.net:/home/groups/echoping/htdocs
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all: test
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%.html: %.wml template.wml
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wml -o $@ ${DEBUG} $<
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test: ${PAGESHTML}
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@for page in ${PAGESHTML}; do \
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(nsgmls -s $$page) \
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done
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install: ${PAGESHTML}
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cvs commit
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scp -v ${PAGESHTML} ${DEST}
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clean:
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rm -f ${PAGESHTML}
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@ -1,96 +0,0 @@
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#use wml::template Title="echoping details"
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<!-- $Id$ -->
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<H2>echo service</H2>
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<P>echoping assumes the remote host accepts such connections. Experience show that
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most Internet routers do and many hosts also. However, some Unices are not
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shipped with this service enabled and, anyway, the administrator is always
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free to close it (I think they shouldn't). echoping has therefore less chance
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to succeed than ping or bing. (On a typical Unix box, "echo" service is
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configured in /etc/inetd.conf but see the <A HREF="http://www.cert.org/advisories/CA-96.01.UDP_service_denial.html">CERT advisory</A>.)
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<H2>What does it measure?</H2>
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<P>echoping simply shows the elapsed time, including the time to set up the TCP
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connection and to transfer the data (but excluding the time for the
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- possible - DNS call). Therefore, it is unsuitable to physical
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line raw throughput measures (unlike bing). On the other end, the action it
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performs are close from a HTTP request and it is meaningful to use it
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(carefully) to measure Web performances.
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<H2>UDP and inetd</H2>
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<P>With UDP servers you can have surprises: the first test is quite often
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much slower since inetd has to launch the process. After that, the process
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stays a while so the next texts run faster.
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<H2>A nice example</H2>
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<P>There are many, many traps when measuring something on the Internet. Just one
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example: 'echoping -w 0 -n 4 a-sunOS-machine' and you'll see the first test
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succeed in a very short time (if you are close from the machine) and all of
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the others take a much longer time (one second). With '-w 1' (wait one second
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between tests, the default), everything works fine: it seems the sockets on
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SunOS need time to recover :-)
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<H2>To measure performances on the Internet you can also see</H2>
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<H3>Unix</H3>
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<UL>
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<LI><A HREF="ftp://ftp.lip6.fr/pub/networking">bing</A>, a bandwidth measurement tool
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<LI>ping, probably available with your system
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<LI>traceroute, idem (otherwise, see <A HREF="ftp://ftp.ee.lbl.gov/">LBL</A>)
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<LI><A HREF="ftp://ftp.arl.mil/pub/ttcp/">ttcp</A>, the best measurement tool but it needs some control over the
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two machines (nothing to do with
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the T/TCP protocol)
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<LI><A HREF="http://www.psc.edu/~pscnoc/treno_info.html">treno</A> (evaluates available bandwidth for TCP)
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<LI>spray is a tool which I dont't know very well. It is available on some
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machines (Sun, OSF/1).
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<LI>I've also heard of but never tried:
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<UL>
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<LI><A
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HREF="http://www.cup.hp.com/netperf/NetperfPage.html">Netperf</A>, a suite of Bandwidth Measuring programs from gnn@netcom.com
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<ftp://ftp.netcom.com/~ftp/gnn/bwmeas-0.3.tar.Z>. These are several
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programs that measure bandwidth and jitter over several kinds of
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IPC links, including TCP and UDP.
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</UL>
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</UL>
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<H3>MacOS</H3>
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<UL>
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<LI>TCP Watcher, a very nice "swiss-army knife" tool, to test ping, DNS, echo.
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It includes an echo server. Available on Info-Mac in "comm/tcp".
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</UL>
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<H3>MS-Windows</H3>
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(I have little knowledge of that environment and I tested nothing.)
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<UL>
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<LI><http://www.ccs.org/winsock/xref-e.html#echo_clients>WSNUTIL</A>. Seems to be an echo client and server.
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</UL>
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<H3>Windows-NT</H3>
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echo and other services can (apparently) be provided within
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'Simple TCP/IP Services' which
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can be enabled through the Network Control Panel
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<H3>Web clients</H3>
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You can ping or traceroute on the Web. See
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<A HREF="http://hplyot.obspm.fr/cgi-bin/nph-traceroute">OBSPM</A> or
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<A HREF="http://www.fr.net/internet/">fr.net</A>.
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<P>Use all of them with care, the result is not obvious to interpret.
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<P>And don't forget to read RFC 1470 ("Tools for Monitoring and Debugging
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TCP/IP Internets and Interconnected Devices"), specially its "Benchmark"
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section and the Richard Stevens' books (all of them), published by
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Addison-Wesley.
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@ -1,84 +0,0 @@
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#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
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HREF="ftp://ftp.internatif.org/pub/unix/echoping">Download</A>, if you
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wish. (Or you may prefer access the latest developments <A
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HREF="http://sourceforge.net/cvs/?group_id=4581">via CVS</A>: the
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module is named "SRC".) You may be interested in <A HREF="http://sourceforge.net/project/?group_id=4581">SourceForge's page
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about echoping</A>, with the bug reports, etc.
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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 <A HREF="details.html">DETAILS</A> 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><A HREF="http://sourceforge.net/bugs/admin/?group_id=4581">Known bugs</A>
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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. Or you can
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display statistics like <A HREF="http://monitor.internatif.org/web.html">at Internatif</A>.
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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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@ -1,82 +0,0 @@
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#use wml::std::info
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<define-tag warningwml>
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<!-- MADE BY A PROGRAM (WML $(WML_VERSION))!
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And maintained by CVS.
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DO NOT EDIT!
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The reference file is $(WML_SRC_DIRNAME)/$(WML_SRC_FILENAME)
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-->
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</define-tag>
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<define-tag miscmeta>
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<LINK REV="made" HREF="mailto:bortz@users.sourceforge.net">
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<info style=meta>
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</define-tag>
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<define-tag lastmodif>
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Last update done on
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<:
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($device, $inode, $mode, $nlink, $uid, $gid, $rdev,
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$size,
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$access_time, $modif_time, $creat_time,
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$block_size, $blocks)
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= stat ($WML_SRC_FILENAME);
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print &time2string($modif_time, 1);
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:>
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<FONT SIZE=-1>(last regeneration by
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<A HREF="http://www.engelschall.com/sw/wml/">WML</A> $(WML_VERSION) on <:
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print &time2string(time(), 1);
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:>)</FONT>.
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</define-tag>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<warningwml>
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<HTML>
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<HEAD>
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<TITLE>$(Title)</TITLE>
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<miscmeta>
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</HEAD>
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<BODY BGCOLOR="#ffffff" VLINK="#003399" LINK="#0033ff" TEXT="#000000">
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<H1>$(Title)</H1>
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<<Body>>
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<HR>
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<A href="http://sourceforge.net">
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<IMG src="http://sourceforge.net/sflogo.php?group_id=0&type=1"
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width="88" height="31" border="0" alt="SourceForge Logo"></A><BR>
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<SMALL>
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<STRONG>echoping</STRONG> is managed by Stéphane Bortzmeyer
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<code><bortz@users.sourceforge.net></code>. <lastmodif>
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</SMALL>
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</BODY>
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</HTML>
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..Body>>
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<:
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sub time2string {
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my ($time, $display_day) = @_;
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my ($result);
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my ($week_day_text);
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my ($seconds, $minutes, $hours, $days, $month, $year, $week_day, $year_day, $is_dst) =
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gmtime ($time);
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$month_text = (January, February, March, April, May, June, July,
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August, September, October, November, December)
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[$month];
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if ($display_day) {
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$week_day_text = (Sunday, Monday, Tuesday, Wednesday, Thursday,
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Friday, Saturday) [$week_day];
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}
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$year = $year + 1900;
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$result = "$week_day_text $days $month_text $year";
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return $result;
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}
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:>
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