Re: Pre-approval request for dpkg sync() changes for squeeze

2010-11-21 Thread Mike Hommey
On Sun, Nov 21, 2010 at 09:18:04AM +0100, Raphael Hertzog wrote: > On Sun, 21 Nov 2010, Ben Hutchings wrote: > > I'm coming to this late. It sounds like dpkg has changed its behaviour > > several times recently. Please can you summarise dpkg's current and > > proposed use of fsync() vs sync(), an

Re: Pre-approval request for dpkg sync() changes for squeeze

2010-11-21 Thread Raphael Hertzog
On Sun, 21 Nov 2010, Ben Hutchings wrote: > I'm coming to this late. It sounds like dpkg has changed its behaviour > several times recently. Please can you summarise dpkg's current and > proposed use of fsync() vs sync(), and the reasons for this. Jonathan made a good summary of the history. I s

Re: Pre-approval request for dpkg sync() changes for squeeze

2010-11-20 Thread Jonathan Nieder
Hi Ben, Ben Hutchings wrote: > On Mon, 2010-11-15 at 19:31 +0100, Philipp Kern wrote: >> and I don't suppose we could make that the default? Is there anything >> else the dpkg developers can try to be portable and still not be >> sacrificing performance? > > I'm coming to this late. It sounds l

Re: Pre-approval request for dpkg sync() changes for squeeze

2010-11-20 Thread Ben Hutchings
On Mon, 2010-11-15 at 19:31 +0100, Philipp Kern wrote: > Dear kernel team, > > On Mon, Nov 15, 2010 at 09:58:47AM +0100, Sven Joachim wrote: > > > I'm sorry, I won't have the time to do new benchmarks on this. > > > > > > The only benchmarks we have have been made by Sven Joachim: > > > http://bu

Re: Pre-approval request for dpkg sync() changes for squeeze

2010-11-16 Thread Guillem Jover
Hi! On Mon, 2010-11-15 at 19:31:00 +0100, Philipp Kern wrote: > On Mon, Nov 15, 2010 at 09:58:47AM +0100, Sven Joachim wrote: > > All this is with a standard squeeze kernel on an otherwise idle system. > > It should be noted that with lots of other disk activity such as writing > > to USB disks, t

Re: Pre-approval request for dpkg sync() changes for squeeze

2010-11-15 Thread Philipp Kern
Dear kernel team, On Mon, Nov 15, 2010 at 09:58:47AM +0100, Sven Joachim wrote: > > I'm sorry, I won't have the time to do new benchmarks on this. > > > > The only benchmarks we have have been made by Sven Joachim: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578635#20 > > (asyncsync is t