i386/68719: usb 2.0 mobil rack+ fat32 performance problem
Csaba Banhalmi
banhalmi at field.hu
Tue Jul 6 01:10:25 PDT 2004
>Number: 68719
>Category: i386
>Synopsis: usb 2.0 mobil rack+ fat32 performance problem
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jul 06 08:10:18 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Csaba Banhalmi
>Release: 4.10
>Organization:
>Environment:
FreeBSD Field.hu 4.10-RELEASE FreeBSD 4.10-RELEASE #5: Wed Jun 23 22:45:47 CEST 2004 banhalmi at Field.hu:/usr/obj/usr/src/sys/Field i386
>Description:
i tried to copy files via usb 2.0 to my usb 2.0 mobil rack, but with fat32 file system the performance was terrible.. ~1M/s
fat32 is important to me, because of windows compatibility.
i checked the performance with ufs fs, it had 10M/s peak, which is bad too. However i still need fat32 mainly.
>How-To-Repeat:
use usb 2.0 mobil rack with a fast hdd and ehci driver on 4.10 or 5.2 rls
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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