i386/68719: usb 2.0 mobil rack+ fat32 performance problem

[Csaba Banhalmi]

>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: