Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-07-02 Thread Donovan Baarda
On Tue, Jul 02, 2002 at 11:06:30AM +0200, Olivier Lachambre wrote: > At 09:19 01/07/2002 +1000, you wrote: > > >[...] > >This relies on optimal block size being related for a set of files. I'm not > >sure that this heuristic actually applies, and I don't know how much benefit > >this would buy fo

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-07-02 Thread Olivier Lachambre
At 09:19 01/07/2002 +1000, you wrote: >[...] >This relies on optimal block size being related for a set of files. I'm not >sure that this heuristic actually applies, and I don't know how much benefit >this would buy for all the complexity it would add. > I think that many clients do not care abo

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-07-02 Thread Olivier Lachambre
At 17:45 30/06/2002 -0700, you wrote: > >I dislike flaming and i don't intend my comments as flame >but you have made some statements that at face value are >problematic. Perhaps you could correct my misunderstanding. [...] >> Well, the first comment: during my work, I wanted to verify that th

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-07-01 Thread Olivier Lachambre
At 17:09 30/06/2002 -0700, you wrote: >Olivier, > >> Well, the first comment: during my work, I wanted to verify that the >> theorical optimal block size sqrt(24*n/Q) given by Andrew Tridgell in his >> PHd Thesis was actually the good one, and when doing the tests on randomly >> generated & modi

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-06-30 Thread jw schultz
I dislike flaming and i don't intend my comments as flame but you have made some statements that at face value are problematic. Perhaps you could correct my misunderstanding. On Sun, Jun 30, 2002 at 06:23:10PM +0200, Olivier Lachambre wrote: > Hello, > Another French student in the rsync maili

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-06-30 Thread tridge
> I believe that the compression option turns on compression of transfered > data, including file lists, instruction streams etc. Even with compression > turned off, the miss data in the delta is still compressed. nope! Compression only compresses file data, not file lists etc. The file lists a

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-06-30 Thread tridge
Olivier, > Well, the first comment: during my work, I wanted to verify that the > theorical optimal block size sqrt(24*n/Q) given by Andrew Tridgell in his > PHd Thesis was actually the good one, and when doing the tests on randomly > generated & modified files I discovered that the size sqrt(7

Re: Block size optimization - let rsync find the optimal blocksize by itself.

2002-06-30 Thread Donovan Baarda
On Sun, Jun 30, 2002 at 06:23:10PM +0200, Olivier Lachambre wrote: [...] > Well, the first comment: during my work, I wanted to verify that the > theorical optimal block size sqrt(24*n/Q) given by Andrew Tridgell in his > PHd Thesis was actually the good one, and when doing the tests on randomly

RE: Block Size

2001-11-15 Thread David Bolen
(I previously wrote) > So your 30MB file ought to be using 16K blocks Whoops - my fault for assuming 30MB was large enough and skipping the calculations. Turns out that really only yields about a 3K block size with the adaptive algorithm. So you can get significant reduction in blocks by using

RE: Block Size

2001-11-15 Thread David Bolen
Thomas Lambert [[EMAIL PROTECTED]] writes: > What is the default block size? I have a few files 30+mb and data > is just added to the end of them. It seems like it takes longer to > sync them that it was to send it initially. Should I change the > block size or something else? The default is