Samba write performance

Andre Grueneberg andre at
Mon Sep 27 22:27:57 GMT 1999


I lately encountered a very weird performance problem, that IMO samba is the 
origin for...

The problem occured on two (nearly completely different machines):
1: Linux 2.0.35, libc5, samba 2.0.0/2.0.5a
2: Linux 2.2.5, glibc2.0, samba 2.0.3/2.0.5a

both connected (like all three clients I tested from) to a 10/100MBit switch 
that shows 100MBit connections.

when writing a bigger file(chunk) (on machine 1 28K-5 Bytes seem to be the 
barrier, machine 2 shows a much more strange behaviour concerning that 
barrier) to a samba share, the write performance drops from 2MB/s (4 MB/s 
on machine 2) down to about 120 KB/s (on both machines)...

I have already changed some parameters in smb.conf, but without great 

I tested this from 2 machines running Win95 and 1 machine running OS/2 Warp 4 

Is there someone out there, who has got a tip to solve this problem?

CU Andre         E-Mail: andre at

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