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0e1f616
(Get the code!)
@Martin:
Don't know exactly what you mean with "regression". Before installation of the patch transfer speed of the 2GB file started at approx. 119MB/sec and quickly dropped to approx 75-80MB/sec (and stayed there until the file is copied). With the patch copying of the 2GB file still starts at approx. 119MB/s and then quickly drops to 60-65MB/sec.
With a large number of rather small files (thousands of html-files around 55kb), the speed goes down at some point to 3.6-5MB/sec after a while. Did not pay attention to the exact time when, but I assume speed goes down significantly when the open file limit is reached.
Read speeds with the 2GB file did not change (approx 50-55MB/sec - which I consider a bit weird since lower than write speeds, but that's probably a different story).
Some background info: I'm running the smb-share on a raid5 consisting of 4 consumer 1TB samsung HDD (spinning at 5400rpm). The raid is exclusively used for hosting files for samba (and the FTP-server, which was of course not used during testing).
Unfortunately I am away over the weekend but will do some more testing next week. Happy to test different settings to narrow it down - just let me know what I should try.