On 14.07.2017 13:59, Paul Hammant wrote: > I'd like to weigh in with some perf stats on that ever-changing 15GB > file, but I can't: > > With TMPDIR same drive as Svn's root dir: sometime 6mins, sometimes > 14 mins for the PUT. > With TMPDIR different drive as Svn's root dir: sometime 6mins, > sometimes 14 mins for the PUT. > I can't prove or disprove the benefit of that env var setting. > > I have compression-level = 0 at the moment, and have filled the drive > to the 3.4TB level (now full) which isn't pertinent to the question > posed, I guess.
In fact it might be. A full filesystem may have a harder time finding contiguous empty space, which may translate to more separate (non-contiguous) writes for the same amount of data, which will have a measurable effect even on an SSD where seek time is effectively zero, but IOPS are not free. -- Brane
