From: Nick Name <nick.name@inwind.it>
To: caml-list@inria.fr
Subject: [Caml-list] Thread.delay, Unix.select, Unix.gettimeofday, Sys.time together?
Date: Sat, 7 Jun 2003 14:17:02 +0200 [thread overview]
Message-ID: <20030607141702.28d583c6.nick.name@inwind.it> (raw)
Hi all,
I have a cycle similar to the following in my program:
while true do
Thread.delay mydelay;
print_float Unix.gettimeofday ();
print_newline()
done
If I put the delay into the cycle, I can't get less than 1/100 of second
delay, on any machine I do this test. Is there a portable function that
can do a shorter delay, say 1/1000 of second ad least?
BTW, I have found a problem in using Sys.time and Thread.delay together:
if I DON'T use Thread.delay, Sys.time returns an increasing value, as
it's expected to. If I do a cycle like
while true do
Thread.delay mydelay;
print_float Sys.time ();
print_newline()
done
Sys.time returns an almost constant value! This also happens if I use
Unix.select [] [] [] mydelay instead of Thread.delay. I suspect this
happens because some sort of counter gets reset by a delay, but this
makes no sense.
If this might be a bug I'll do the bug report.
thanks for attention
Vincenzo
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next reply other threads:[~2003-06-07 12:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-07 12:17 Nick Name [this message]
2003-06-07 13:31 ` Nicolas George
2003-06-09 16:19 ` Xavier Leroy
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