[Bugme-new] [Bug 6664] New: Linux performs poorly at copying large
files between partitions on nForce 3 motherboard
bugme-daemon at bugzilla.kernel.org
bugme-daemon at bugzilla.kernel.org
Thu Jun 8 03:38:18 PDT 2006
http://bugzilla.kernel.org/show_bug.cgi?id=6664
Summary: Linux performs poorly at copying large files between
partitions on nForce 3 motherboard
Kernel Version: 2.6.16.19
Status: NEW
Severity: normal
Owner: bzolnier at gmail.com
Submitter: t.artem at mailcity.com
Most recent kernel where this bug did not occur: not known
Distribution: FC5
Hardware Environment: CPU Sempron 3400; GigaByte K8NS Pro Motherboard; nForce3
250GB chipset; Two HDD on the same IDE channel; Two SATA drives
Software Environment:
Problem Description:
1) Copying a large file between two HDD with newly created empty FAT32
partitions on the same IDE channel gives these results (Linux runned with no
background tasks, i.e. with zero CPU load):
Windows XP SP2 with nVidia IDE drivers: ~33Mb/sec (CPU usage ~ 15%)
Linux: ~22Mb/sec (CPU usage ~ 10%)
2) The same situation but two SATA drives (empty FAT32 partitions)
Windows XP SP2 with nVidia IDE drivers: ~38Mb/sec
Linux: ~27Mb/sec
P.S. File reading on the both drives gives an average 55Mb/s throughput
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