[9fans] IL

[9fans] IL

[@ 1999-03-12 21:52 UTC (permalink / raw)]

    Thanks Ed. You are correct. Now the server sends, after it receive a
message, a empty message to the client. It works.

    One more question: why the maximum size of a message in IL is 32750
bytes?

    Thanks.

Franklin.

[9fans] il

[erik quanstrom]

thanks to all who provided explinations about why il has
fallen out of favor.

just out of curiousity, has anyone done any benchmarks of
il v. tcp on very fast lans?

erik

[9fans] IL

[Ed]

IL has no flow control so you may be overflowing some system buffers.  It
is meant to be used in a ``request-response'' mode where the client waits
for a response from the server before another transmission.

Ed Wishart

[9fans] IL

[@ 1999-03-12 20:54 UTC (permalink / raw)]

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    I have two programs that use the IL protocol. The first program sends 1000
messages (size = 17 bytes) to other program, which only function is to receive
messages (that is, a client and a server).  Examing the IL source code
(/sys/src/9/port/stip.c) and "THE IL PROTOCOL" (The Documents, page 321), I´m
thinking that the ilrexmit function (void ilrexmit(Ilcb *ic) in the stil.c is used
when a message ou ack are lost. I put a debug in this function and I can see that
when the client sends a message, sometimes it enters in this function. I´m using
two PCs in the same room with Ethernet. Is Why did IL lost several messages?

    Thanks.

Franklin.