Bug 99358 - NFS is very slow on RedHat9
NFS is very slow on RedHat9
Product: Red Hat Linux
Classification: Retired
Component: nfs-server (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Steve Dickson
Depends On:
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Reported: 2003-07-17 19:53 EDT by Hoang Le
Modified: 2007-04-18 12:55 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2004-08-11 07:41:13 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Hoang Le 2003-07-17 19:53:11 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0; T312461; .NET 
CLR 1.0.3705)

Description of problem:
NFS is very slow with SCSI drives when writing small files.  I have a system 
with both IDE and SCSI, if testing locally, SCSI is faster than IDE drive.  But 
NFS on SCSI drive is 200%-300% slower than NFS share on IDE drive.  I have 
tested on other systems with RedHat8, and experience the same problem, NFS is 
much slower on SCSI especially when writing lots of small files an the shared 

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1.Create NFS share on SCSI drive
2.Mount the share on a system
3.running copy directory which contains many small files to the NFS shared 
4.Do the same for an IDE drive to compare the result.


Additional info:
Comment 1 Robert Eden 2004-01-28 12:24:59 EST
I see a similar problem with files of any size..

I created a 100MB file on a RH 7.1 system and RH 9.0 systems.

When I mount the file systems on a Solaris 8 system, the 7.1 copies
the file in about 15 seconds, while 9.0 is still going after 5 minutes.

/etc/exports entries are identical.
solaris mount commands are identical.

Comment 2 Steve Dickson 2004-08-11 07:41:13 EDT
We think this was do to some major VM issues. Please upgrade
to a later to kernel.

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