Re: busyloop in sigchld_handler

[Sam Steingold <sds@gnu.org>]

> * YAMAMOTO Mitsuharu <zvghuneh@zngu.f.puvon-h.np.wc> [2007-03-26 10:47:41 +0900]:
>
> The following change (without a ChangeLog entry) made operations using
> subprocesses really sluggish on Mac OS X.  Is it possible to restrict
> the workaround to the relevant platforms?

sorry - this patch merely reverted another one (which did not merit a
ChangeLog entry either :-)

how about this?
one millisecond is enough to fix my problem - does it fix yours?

--- process.c	24 Mar 2007 23:02:12 -0400	1.506
+++ process.c	25 Mar 2007 21:54:24 -0400	
@@ -6507,7 +6507,7 @@
              loadavg to 5-8(!) for ~10 seconds.
              See http://thread.gmane.org/gmane.emacs.devel/67722 or
              http://www.google.com/search?q=busyloop+in+sigchld_handler */
-          sleep (1);
+          usleep (1000);
 	  errno = 0;
 	  pid = wait3 (&w, WNOHANG | WUNTRACED, 0);
 	}



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Sam Steingold (http://sds.podval.org/) on Fedora Core release 6 (Zod)
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