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Speed up Samba file copying speeds
Authored by: Baguerra on Nov 30, '05 01:11:11AM

Well, the comments to this hint helped solve the Mac <-> Linux samba performance problem I have had since I switched from a PC to Mac over six months ago, so I had no choice but to get an account and share my results with others...

Short version:
- Typing "sysctl -w net.inet.tcp.delayed_ack=0" on the Mac did nothing
- Adding "large readwrite = no" to smb.conf on the Mac did nothing
- Adding "large readwrite = no" to smb.conf on Linux fixed the problem

My home network consists of a PowerBook 15" 1.67GHz running 10.4.3 and an old P3 400MHz laptop running Ubuntu Linux v5.10. I was able to get the two macines connected via Samba easily enough, but performance was less than spectacular. Adding the "large readwrite = no" entry to the smb.conf on the Linux box dramatically improved performance. Using a folder containing 38 images totaling 10MB in size, transfers were as follows...

Before the change:
Linux -> Mac: 1 minute
Mac -> Linux: 2 minutes

After the change:
Linux -> Mac: < 10 seconds
Mac -> Linux: < 10 seconds

I couldn't be happier, and hopefully this will help solve the problem for others as well. Thanks to everyone who took the time to contribute to this thread!

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