Date: Thu, 05 Nov 98 14:34:03 -0600 From: "Richard Seaman, Jr." <lists@tar.com> To: "Peter Wemm" <peter@netplex.com.au> Cc: "current@FreeBSD.ORG" <current@FreeBSD.ORG> Subject: Re: Kernel threading (was Re: Thread Scheduler bug) Message-ID: <199811052034.OAA14134@ns.tar.com>
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--_=_=_=IMA.BOUNDARY.F1YROR138764=_=_=_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Thu, 05 Nov 1998 22:28:46 +0800, Peter Wemm wrote: >Also, while on the subject, something Julian said has got me thinking about >creating kernel threads on the fly when and if a user thread happens to >block. This sounds rather interesting.. - async IO is done this way too I >think. It would require a fair amount of cooperation between the thread >"engine" and the kernel, perhaps by having an executive thread of sorts >that handled the kernel interation and thread activation. I attached a message from Martin Cracauer (and the attachment to that message) from about 2 1/2 months ago on this subject. --_=_=_=IMA.BOUNDARY.F1YROR138764=_=_=_ Content-Type: application/octet-stream; name="m" Content-Transfer-Encoding: base64 UmV0dXJuLVBhdGg6IG93bmVyLWZyZWVic2QtY3VycmVudEBGcmVlQlNELk9SRwpSZXR1cm4tUGF0 aDogPG93bmVyLWZyZWVic2QtY3VycmVudEBGcmVlQlNELk9SRz4KUmVjZWl2ZWQ6IGZyb20gc2Fy aXAuc29sLm5ldCAobWFpbEBzYXJpcC5zb2wubmV0IFsxNjkuMjA3LjMwLjEyMF0pCglieSBucy50 YXIuY29tICg4LjguOC84LjguNykgd2l0aCBFU01UUCBpZCBIQUEwNDU1MAoJZm9yIDxsaXN0c0B0 YXIuY29tPjsgV2VkLCAyNiBBdWcgMTk5OCAwNzozNjoyMiAtMDUwMCAoQ0RUKQpSZWNlaXZlZDog ZnJvbSBodWIuZnJlZWJzZC5vcmcgKGh1Yi5GcmVlQlNELk9SRyBbMjA0LjIxNi4yNy4xOF0pCgli eSBzYXJpcC5zb2wubmV0ICg4LjguOC84LjguOC9TTk5TLTEuMDIpIHdpdGggRVNNVFAgaWQgSEFB MTAxOTk7CglXZWQsIDI2IEF1ZyAxOTk4IDA3OjMyOjIwIC0wNTAwIChDRFQpClJlY2VpdmVkOiBm cm9tIGxvY2FsaG9zdCAoZGFlbW9uQGxvY2FsaG9zdCkKICAgICAgICAgIGJ5IGh1Yi5mcmVlYnNk 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