On 06.07.2017 13:54, Paul Hammant wrote: > For something that's 500MB in size (random binary data) I'm > experiencing commits taking > 10x longer than a straight copy to the drive the Svn repo is on. > > Both timings are on the same Ubuntu 17.04 machine, with the boot drive > being the starting position of the 512MB file and a USB3 mounted 4TB > seagate hard drive being the destination. > > My goal is to fill the 4TB drive with commits for the simple > experience of that. > > How many places in the Apache2 --> mod_dav --> mod_dav_svn handoff > does the 512MB temporarily manifest itself in a file system on the way > to its ultimate destination? Is 1/10th speed the expectation? Sure, > I get that 7bit/8bit shenanigans are a factor, but not that much right?
7 vs. 8bit shouldn't be an issue; data transfers are binary. If you're committing updates to the file, deltification could be part of the reason for the slowdown. Other than that ... performance measurements would help. -- Brane
