Le 13 juil. 2013 à 14:42, AZ 9901 a écrit : > Le 12 juil. 2013 à 19:35, Wayne Davison <[email protected]> a écrit : > >> On Tue, Jul 9, 2013 at 9:46 AM, CM Fields <[email protected]> wrote: >> Is rsync speed limited to 160MB/sec read speeds due to the chunk read size? >> Or, are we seeing just a coincidence and the limitation is somewhere else? >> >> The fileio routines are usually reading 256K chunks except for the receiver, >> which tries to read 16K chunks (since it may be randomly accessing the file >> data in some cases). >> >> Give the 3.1.0dev code a try -- it aligns its reads on 1K boundaries. That >> might help the speed. It also has better I/O throughput between processes. > > Hi Wayne, > > Why don't you choose 4K boundaries alignment, as new hard drives now come > with 4K physical blocks ? > It would also be still compatible with disks using 512B blocks (4096/512=8).
Hello Wayne, What about my 4K alignment question ? Don't you think it would even be faster ? Thank you very much ! Best regards, Ben
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