Hi, Paul, > Here it is - http://imgur.com/a/vBeKi - a more interesting graph.
Yes, more interesting. :-) And it somehow supports my point that, in some use cases, switching of deltification and rep sharing do no good. The benefit of disabling compression is understandable, as it just wastes CPU on non-compressible data. Disabling everything seems not the fastest way this time (while it skips all the processing, it has to write the whole file every time), while rep sharing and deltification can compensate the CPU overhead with writing just a few bytes at the end. I expect the difference to be bigger when the CPU is faster and I/O is slower. > Server side Storage Used (MB): > Default: 129 > No_Compression_No_Deltification: 257 > No_Deltification_No_Rep_Sharing: 513 > No_Compression_No_Deltification_No_Rep_Sharing: 513 > No_Rep_Sharing: 129 > No_Compression: 129 > No_Compression_No_Rep_Sharing: 129 > No_Deltification: 257 This is also pretty much what I expected. Deltification and rep sharing almost compensate each other in this case (as we're modifying the same file). Rep sharing brings its real benefits when equal files are stored independently on the server, while deltification is best for small changes in the same file (or "historically related). Thanks a lot! Best regards Markus Schaber CODESYS® a trademark of 3S-Smart Software Solutions GmbH Inspiring Automation Solutions ________________________________________ 3S-Smart Software Solutions GmbH Dipl.-Inf. Markus Schaber | Product Development Core Technology Memminger Str. 151 | 87439 Kempten | Germany Tel. +49-831-54031-979 | Fax +49-831-54031-50 E-Mail: m.scha...@codesys.com | Web: codesys.com | CODESYS store: store.codesys.com CODESYS forum: forum.codesys.com Managing Directors: Dipl.Inf. Dieter Hess, Dipl.Inf. Manfred Werner | Trade register: Kempten HRB 6186 | Tax ID No.: DE 167014915 ________________________________________ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden. From: Paul Hammant [mailto:p...@hammant.org] Sent: Wednesday, August 02, 2017 3:28 PM To: Markus Schaber Cc: Subversion Development Subject: Re: Benchmarks for PUT for various fsfs config settings.
