Re: [Speedycgi-users] Slow SpeedyCGI response / multiple parallel requests

[Thomas A. <ae...@gr...>]

On Thu, 2003-12-04 at 00:54, Sam Horrocks wrote:
> You could try running truss or strace on the backends to see what they're
> doing - you might get a clue there.

During debugging I ran into some strange effect: I decided to write a=20
small wrapper around my script (it's one single CGI with a number of
different functions depending on form arguments passed - ideal job for
SpeedyCGI :-)) logging start time and duration of one invocation.

I was really surprised to see the problem was gone!!!!

Now, if I use a simple wrapper like e.g.

   #!/bin/sh

   /usr/bin/speedycgi /tmp/myscript.pl

The pages (with myscript.pl generated images) are loaded stunningly
fast. If I use /tmp/myscript.pl directly (it starts with
#!/usr/bin/speedycgi) or use a wrapper like

    #!/bin/sh

    exec /usr/bin/speedycgi /tmp/myscript.pl

Then the script answers very fast, but somehow there are pauses of
several seconds between some (not each) of the invocations. If I use
the above wrapper (without "exec") the problem is gone.=20

Now I've got a workaround but no idea what's happening - might this
be some problem in signal handling or with STDIN/STDOUT/STDERR handling?

Best regards,
Tom
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Thomas Aeby, Kirchweg 40, 1735 Giffers, Switzerland, Voice : (+41)26
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