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Date: Thu, 05 Feb 2004 21:54:55 +0800
To: "Peter Jeremy" <PeterJeremy@optushome.com.au>
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From: "Jun Su" <junsu@delphij.net>
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cc: David Schultz <das@freebsd.org>
cc: Olivier Houchard <cognet@ci0.org>
cc: current@freebsd.org
Subject: [UPDATE] new pid allocation patch (was: Call for testers: New PID
	allocator patch for -CURRENT)
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Hi All,

John Baldwin's proc lock commit today made my patch broken, so I have
revised the patch, and uploaded it to the same position:
http://www.arbornet.org/~junsu/pid.diff

The revised patch has been improved based on the feedback. Basically,

1. Added a new sysctl value kern.pidmax to control the current pid range.
This value can influence the reuse pid period. The initial value is 4096.

2. Change the meaning of PID_MAX back to what it was, and sainty-check
whether the pid is 5 digit based on PID_MAX. (I think it is impossible that
pid expand PID_MAX for the algorithm nature, though.)

3. The initial pid table size is bumped from 1<<5 to 1<<7.

Thanks,

Jun Su