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Re: fsync performance hit on 1.6.1

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From: Greg A. Woods
Subject: Re: fsync performance hit on 1.6.1
Date: Thursday, July 10, 2003 - 9:40 am

[ On Thursday, July 10, 2003 at 12:53:55 (+0530), Kamal R Prasad wrote: ]

No, not "under the hood".  A good systems programmer will need to know
how to use system calls effectively and safely and what system resources
they may consume; and thus the API for those calls must be well and
completely documented.  However just as with any well documented API it
should never be necessary to know how it is implemented under the hood.

-- 
								Greg A. Woods

+1 416 218-0098;            <g.a.woods@ieee.org>;           <woods@robohack.ca>
Planix, Inc. <woods@planix.com>; VE3TCP; Secrets of the Weird <woods@weird.com>
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Messages in current thread:
Re: fsync performance hit on 1.6.1, Daniel Brewer, (Mon Jul 7, 12:45 am)
Re: fsync performance hit on 1.6.1, der Mouse, (Mon Jul 7, 12:53 am)
Re: fsync performance hit on 1.6.1, Chuck Silvers, (Mon Jul 7, 9:33 am)
Re: fsync performance hit on 1.6.1, Chuck Silvers, (Mon Jul 7, 9:39 am)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Mon Jul 7, 11:45 am)
Re: fsync performance hit on 1.6.1, David Laight, (Mon Jul 7, 1:58 pm)
Re: fsync performance hit on 1.6.1, Jochen Kunz, (Tue Jul 8, 1:16 am)
Re: fsync performance hit on 1.6.1, David Laight, (Tue Jul 8, 5:17 am)
Re: fsync performance hit on 1.6.1, Matthias Buelow, (Tue Jul 8, 11:18 am)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Tue Jul 8, 1:57 pm)
Re: fsync performance hit on 1.6.1, Matthias Buelow, (Tue Jul 8, 3:32 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Tue Jul 8, 6:59 pm)
Re: fsync performance hit on 1.6.1, Matthias Buelow, (Tue Jul 8, 7:54 pm)
Re: fsync performance hit on 1.6.1, der Mouse, (Tue Jul 8, 8:09 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Tue Jul 8, 8:44 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Wed Jul 9, 12:01 am)
Re: fsync performance hit on 1.6.1, der Mouse, (Wed Jul 9, 12:11 am)
Re: fsync performance hit on 1.6.1, Christoph Hellwig, (Wed Jul 9, 1:04 am)
Re: fsync performance hit on 1.6.1, Christoph Hellwig, (Wed Jul 9, 1:07 am)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Wed Jul 9, 1:36 am)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Wed Jul 9, 9:26 am)
Re: fsync performance hit on 1.6.1, Christoph Hellwig, (Wed Jul 9, 9:43 am)
Re: fsync performance hit on 1.6.1, Matt Thomas, (Wed Jul 9, 11:13 am)
POSIX shm_open() vs. mmap(MAP_ANON|MAP_SHARED)...., Greg A. Woods, (Wed Jul 9, 11:17 am)
Re: fsync performance hit on 1.6.1, Matthias Buelow, (Wed Jul 9, 11:34 am)
Re: fsync performance hit on 1.6.1, Matthias Buelow, (Wed Jul 9, 11:43 am)
Re: fsync performance hit on 1.6.1, der Mouse, (Wed Jul 9, 12:21 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Wed Jul 9, 12:22 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Wed Jul 9, 12:56 pm)
Re: POSIX shm_open() vs. mmap(MAP_ANON|MAP_SHARED)...., Greywolf, (Wed Jul 9, 1:00 pm)
Re: fsync performance hit on 1.6.1, der Mouse, (Wed Jul 9, 1:05 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Wed Jul 9, 1:40 pm)
Re: fsync performance hit on 1.6.1, der Mouse, (Wed Jul 9, 1:50 pm)
Re: fsync performance hit on 1.6.1, Greywolf, (Wed Jul 9, 2:06 pm)
Re: fsync performance hit on 1.6.1, Christoph Hellwig, (Wed Jul 9, 5:14 pm)
Re: fsync performance hit on 1.6.1, Matthias Buelow, (Wed Jul 9, 6:32 pm)
Re: fsync performance hit on 1.6.1, Kamal R Prasad, (Wed Jul 9, 11:11 pm)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Thu Jul 10, 12:06 am)
Re: fsync performance hit on 1.6.1, Kamal R Prasad, (Thu Jul 10, 12:23 am)
Re: funlink() for fun!, Greg A. Woods, (Thu Jul 10, 9:35 am)
Re: POSIX shm_open() vs. mmap(MAP_ANON|MAP_SHARED)...., Greg A. Woods, (Thu Jul 10, 9:37 am)
Re: fsync performance hit on 1.6.1, Greg A. Woods, (Thu Jul 10, 9:40 am)
Re: funlink() for fun!, Greywolf, (Thu Jul 10, 2:52 pm)
Re: fsync performance hit on 1.6.1, Matthew Mondor, (Thu Jul 10, 3:08 pm)
Re: funlink() for fun!, Greg A. Woods, (Thu Jul 10, 3:34 pm)
Re: funlink() for fun!, Greywolf, (Thu Jul 10, 3:51 pm)
Re: funlink() for fun!, Greg A. Woods, (Thu Jul 10, 4:56 pm)
Re: funlink() for fun!, Greywolf, (Thu Jul 10, 5:31 pm)
Re: funlink() for fun!, der Mouse, (Thu Jul 10, 8:41 pm)
Re: funlink() for fun!, Greg A. Woods, (Thu Jul 10, 11:38 pm)
Re: funlink() for fun!, der Mouse, (Thu Jul 10, 11:43 pm)
Re: funlink() for fun!, Greg A. Woods, (Fri Jul 11, 12:31 am)
Re: funlink() for fun!, der Mouse, (Fri Jul 11, 1:12 am)
Re: funlink() for fun!, David Laight, (Fri Jul 11, 2:36 am)
Re: funlink() for fun!, Roland Dowdeswell, (Fri Jul 11, 8:03 am)
Re: funlink() for fun!, Greg A. Woods, (Fri Jul 11, 10:47 am)
Re: funlink() for fun!, Greg A. Woods, (Fri Jul 11, 10:58 am)
Re: funlink() for fun!, Greywolf, (Fri Jul 11, 1:42 pm)
Re: funlink() for fun!, der Mouse, (Fri Jul 11, 1:48 pm)
Re: funlink() for fun!, Greg A. Woods, (Fri Jul 11, 4:02 pm)
Re: funlink() for fun!, Greywolf, (Fri Jul 11, 4:20 pm)
Re: funlink() for fun!, Matthias Buelow, (Fri Jul 11, 6:38 pm)
Re: funlink() for fun!, Matthias Buelow, (Fri Jul 11, 6:53 pm)
Re: funlink() for fun!, Greywolf, (Fri Jul 11, 7:20 pm)
Re: funlink() for fun!, Greg A. Woods, (Sat Jul 12, 1:11 am)
Re: funlink() for fun!, Greg A. Woods, (Sat Jul 12, 1:47 am)
Re: funlink() for fun!, Greg A. Woods, (Sat Jul 12, 1:54 am)
Re: funlink() for fun!, der Mouse, (Sat Jul 12, 1:57 am)
Re: funlink() for fun!, Greywolf, (Sat Jul 12, 2:11 am)
Re: funlink() for fun!, joerg, (Sat Jul 12, 4:07 am)
Re: funlink() for fun!, Ignatios Souvatzis, (Sat Jul 12, 6:18 am)
Re: funlink() for fun!, Greg A. Woods, (Sat Jul 12, 10:48 am)
Re: funlink() for fun!, Greg A. Woods, (Sat Jul 12, 10:57 am)
Re: funlink() for fun!, Matthias Buelow, (Sun Jul 13, 1:25 pm)
Re: funlink() for fun!, Greg A. Woods, (Sun Jul 13, 3:58 pm)
Re: funlink() for fun!, Matthias Buelow, (Mon Jul 14, 7:19 am)
Re: funlink() for fun!, Greg A. Woods, (Mon Jul 14, 9:08 am)
Re: funlink() for fun!, Greywolf, (Mon Jul 14, 9:24 am)
Re: funlink() for fun!, Matthias Buelow, (Mon Jul 14, 9:34 am)
Re: funlink() for fun!, Greg A. Woods, (Mon Jul 14, 10:44 am)
Re: funlink() for fun!, Ben Harris, (Mon Jul 14, 11:06 am)
Re: funlink() for fun!, Greywolf, (Mon Jul 14, 11:20 am)
Re: funlink() for fun!, Greg A. Woods, (Mon Jul 14, 11:30 am)
Re: funlink() for fun!, Matthias Buelow, (Mon Jul 14, 12:46 pm)
Re: funlink() for fun!, Matthias Buelow, (Mon Jul 14, 1:51 pm)
Re: funlink() for fun!, Greg A. Woods, (Mon Jul 14, 1:58 pm)
Re: funlink() for fun!, Greg A. Woods, (Mon Jul 14, 2:43 pm)
Re: funlink() for fun!, der Mouse, (Mon Jul 14, 3:00 pm)
Re: funlink() for fun!, Greywolf, (Mon Jul 14, 4:05 pm)
Re: funlink() for fun!, der Mouse, (Mon Jul 14, 4:56 pm)
Re: funlink() for fun!, Greg A. Woods, (Mon Jul 14, 5:07 pm)
Re: funlink() for fun!, der Mouse, (Mon Jul 14, 5:42 pm)
re: funlink() for fun!, matthew green, (Mon Jul 14, 8:55 pm)
re: funlink() for fun!, Bill Studenmund, (Tue Jul 15, 10:31 am)
Re: funlink() for fun!, Bill Studenmund, (Tue Jul 15, 10:34 am)
Re: funlink() for fun!, Bill Studenmund, (Tue Jul 15, 11:47 am)
Re: funlink() for fun!, Bill Studenmund, (Tue Jul 15, 12:00 pm)
Re: funlink() for fun!, ww, (Tue Jul 15, 12:09 pm)
Re: funlink() for fun!, Bill Studenmund, (Tue Jul 15, 12:40 pm)
Re: funlink() for fun!, der Mouse, (Tue Jul 15, 12:49 pm)
Re: funlink() for fun!, Ignatios Souvatzis, (Tue Jul 15, 1:02 pm)
Re: funlink() for fun!, Bill Studenmund, (Tue Jul 15, 1:28 pm)
Re: funlink() for fun!, Greg A. Woods, (Wed Jul 16, 12:05 am)