[Interest] Very slow write to a samba file
Etienne Sandré-Chardonnal
etienne.sandre at m4x.org
Thu Mar 26 15:11:14 CET 2015
Dear all,
My app is writing a file to a SMB share under windows 7.
It takes about 30s to write a 4MB file, whereas copying a 180MB file with
explorer takes 2s, so there is clearly a performance issue.
When the 4MB file is written to a local folder, it's done almost instantly
(~100ms).
What could be the problem? As initially the file was written by very small
chunks (line by line, this is a log file), I added a buffer so that it is
written by 256kB chunks, but this does not change anything.
Any idea?
Qt 5.4.1, mingw-builds w64 4.9.1
Thanks!
Etienne
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