From: Dan Cross <cross@math.psu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] Install from CD fails
Date: Tue, 18 Apr 2006 23:16:23 -0400 [thread overview]
Message-ID: <20060419031623.GX9931@augusta.math.psu.edu> (raw)
In-Reply-To: <79f0f2cef345552f7f8efc922440bfcd@collyer.net>
On Tue, Apr 18, 2006 at 07:53:30PM -0700, geoff@collyer.net wrote:
> [...]
>
> We scratched our heads about what in the world the kernel was doing
> for 42ms per fork. Even on a Sun 3/50, that's a lot of cycles.
>
> This was a long time ago, but it's some actual measurements.
Hmm. Weird. If it had been doing an exec, it would have been easy to
point the finger at the run time loader, but if all you did was fork?
My guess was reference counting pages in the shared libraries. Did you
ever find out where the time went?
- Dan C.
next prev parent reply other threads:[~2006-04-19 3:16 UTC|newest]
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-17 22:07 Bakul Shah
2006-04-18 0:01 ` Russ Cox
2006-04-18 14:36 ` Gorka guardiola
2006-04-18 15:47 ` Russ Cox
2006-04-18 14:45 ` Ronald G Minnich
2006-04-18 16:12 ` Charles Forsyth
2006-04-18 16:42 ` andrey mirtchovski
2006-04-18 16:46 ` Bruce Ellis
2006-04-18 16:47 ` Charles Forsyth
2006-04-18 17:41 ` Brantley Coile
2006-04-18 17:46 ` David Leimbach
2006-04-18 17:55 ` Bruce Ellis
2006-04-18 18:06 ` Francisco J Ballesteros
2006-04-18 22:37 ` Skip Tavakkolian
2006-04-18 18:54 ` Charles Forsyth
2006-04-18 19:22 ` David Leimbach
2006-04-18 20:14 ` lucio
2006-04-18 20:34 ` Russ Cox
2006-04-18 19:52 ` David Leimbach
2006-04-20 21:16 ` Latchesar Ionkov
2006-04-18 20:45 ` Ronald G Minnich
2006-04-18 21:08 ` David Leimbach
2006-04-18 21:39 ` Roman Shaposhnick
2006-04-18 21:54 ` David Leimbach
2006-04-18 23:19 ` Brantley Coile
2006-04-19 1:05 ` Roman Shaposhnick
2006-04-19 14:17 ` David Leimbach
2006-04-19 14:31 ` Charles Forsyth
2006-04-19 15:32 ` Chad Dougherty
2006-04-19 15:45 ` David Leimbach
2006-04-19 15:57 ` Federico G. Benavento
2006-04-19 17:45 ` David Leimbach
2006-04-19 23:56 ` geoff
2006-04-19 16:49 ` Russ Cox
2006-04-19 17:50 ` David Leimbach
2006-04-19 17:55 ` Federico G. Benavento
2006-04-19 18:45 ` Charles Forsyth
2006-04-19 18:55 ` David Leimbach
2006-04-18 23:27 ` Roman Shaposhnick
2006-04-18 23:29 ` Federico G. Benavento
2006-04-18 23:48 ` Lyndon Nerenberg
2006-04-19 14:25 ` David Leimbach
2006-04-19 14:31 ` Ronald G Minnich
2006-04-19 15:51 ` Tim Wiess
2006-04-19 19:53 ` Wes Kussmaul
2006-04-20 14:39 ` Ronald G Minnich
2006-04-20 15:50 ` Jack Johnson
2006-04-20 21:20 ` Ronald G Minnich
2006-04-20 21:42 ` Dan Cross
2006-04-20 22:06 ` Brantley Coile
2006-04-21 3:43 ` Ronald G Minnich
2006-04-21 4:37 ` Dan Cross
2006-04-21 16:08 ` Ronald G Minnich
2006-04-20 22:09 ` Wes Kussmaul
2006-04-20 23:09 ` Charles Forsyth
2006-04-21 3:45 ` Ronald G Minnich
2006-04-21 4:31 ` Dan Cross
2006-04-21 13:36 ` Christoph Lohmann
2006-04-21 4:46 ` lucio
2006-04-18 19:34 ` jmk
2006-04-18 19:52 ` David Leimbach
2006-04-18 20:34 ` Roman Shaposhnick
2006-04-18 21:04 ` Dan Cross
2006-04-18 21:11 ` Charles Forsyth
2006-04-18 21:16 ` Dan Cross
2006-04-18 21:21 ` David Leimbach
2006-04-18 21:24 ` David Leimbach
2006-04-19 2:53 ` geoff
2006-04-19 3:16 ` Dan Cross [this message]
2006-04-19 3:28 ` geoff
2006-04-20 22:35 ` Roman Shaposhnick
2006-04-19 3:02 ` Dan Cross
2006-04-18 20:44 ` Ronald G Minnich
2006-04-20 3:10 ` LiteStar numnums
2006-04-18 16:48 ` Charles Forsyth
2006-04-18 16:58 ` Bruce Ellis
2006-04-18 17:02 ` uriel
2006-04-18 17:30 ` Bruce Ellis
2006-04-18 20:21 ` Richard Miller
2006-04-18 21:10 ` Charles Forsyth
2006-04-19 1:14 ` geoff
2006-04-19 12:49 ` Richard Miller
2006-04-19 13:21 ` Charles Forsyth
2006-04-18 16:17 ` Dave Eckhardt
2006-04-18 19:17 ` Lyndon Nerenberg
2006-04-19 0:28 ` Bakul Shah
2006-04-19 1:45 ` Russ Cox
2006-04-19 2:35 erik quanstrom
2006-04-19 3:53 ` Russ Cox
2006-04-19 19:34 ` Roman Shaposhnick
2006-04-19 19:42 ` Bruce Ellis
2006-04-20 1:07 ` Roman Shaposhnick
2006-04-20 2:02 ` Jack Johnson
2006-04-19 19:45 ` Charles Forsyth
2006-04-19 21:16 ` Brantley Coile
2006-04-19 21:46 ` quanstro
2006-04-20 1:03 ` rog
2006-04-20 6:08 ` Charles Forsyth
2006-04-20 15:59 ` rog
2006-04-20 4:02 ` Roman Shaposhnick
2006-04-19 2:47 erik quanstrom
2006-04-19 3:04 erik quanstrom
2006-04-19 3:27 Mike Haertel
2006-04-19 8:19 YAMANASHI Takeshi
2006-04-20 1:41 erik quanstrom
2006-04-20 6:17 ` Charles Forsyth
2006-04-20 1:45 erik quanstrom
2006-04-20 3:03 ` Michael Baldwin
2006-04-20 5:58 ` Charles Forsyth
2006-04-21 11:34 ` Bruce Ellis
2006-04-21 15:46 ` Skip Tavakkolian
2006-04-21 15:47 ` Jack Johnson
2006-04-20 9:57 erik quanstrom
2006-04-20 11:00 ` R
2006-04-20 10:30 erik quanstrom
2006-04-20 13:50 ` David Leimbach
2006-04-20 17:55 ` Skip Tavakkolian
2006-04-25 2:02 ` Roman Shaposhnick
2006-04-20 10:36 erik quanstrom
2006-04-21 15:49 erik quanstrom
2006-04-25 2:16 erik quanstrom
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