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Subject: Re: [gentoo-user-de] langsames USB
From: Matthias Nimscholz <sierra666@gmx.de>
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Am Montag, den 18.07.2005, 15:21 +0200 schrieb Jens Gassmann:

> Mit der Kernelversion 2.6.12-r4 habe ich das Problem auch, die -r5=20
> konnte ich nicht nicht testen,


Guten Tag zusammen,

vor kurzem bin ich mit meinem USB-Stick ebenfalls ausgebremst worden.
Im Gentoo-Forum beschuldigten einige aber nicht den Kernel, sondern HAL.

http://forums.gentoo.org/viewtopic-t-356789-highlight-slow+usb.html

Bei mir was das des Pudels Kern (statt 5h f=FCr 600MB nur noch wenige
Minuten)

Gr=FC=DFe

Matthias

Zitat:
USB 2.0 will slow down extremely when writing to an (USB) device with
vfat if you mount it with the "sync"-option. Unfortunately HAL exactly
did this if the device was smaller than 2 GB. So I had to edit the
file /usr/share/hal/fdi/90defaultpolicy/storage-policy.fdi and made this
changes:=20

<!-- Use noatime and sync options for all hotpluggable or removable
volumes smaller than 2GB -->=20
          <match key=3D"volume.size" compare_lt=3D"2147483648">=20
            <match key=3D"@block.storage_device:storage.hotpluggable"
bool=3D"true">=20
                                                            <!-- Was
true before -->=20
              <merge key=3D"volume.policy.mount_option.sync"
type=3D"bool">false</merge>=20
              <merge key=3D"volume.policy.mount_option.noatime"
type=3D"bool">true</merge>=20
            </match>=20
            <match key=3D"@block.storage_device:storage.removable"
bool=3D"true">=20
                                                            <!-- Was
true before -->=20
              <merge key=3D"volume.policy.mount_option.sync"
type=3D"bool">false</merge>=20
              <merge key=3D"volume.policy.mount_option.noatime"
type=3D"bool">true</merge>=20
            </match>=20
          </match>=20
                                 Code:
                                   =20
            <!-- Use noatime and sync options for all hotpluggable or
                               removable=20
                             volumes smaller than 2GB -->=20
                <match key=3D"volume.size" compare_lt=3D"2147483648">=20
              <match key=3D"@block.storage_device:storage.hotpluggable"
                             bool=3D"true">=20
                                                              <!-- Was
                            true before -->=20
                     <merge key=3D"volume.policy.mount_option.sync"
                       type=3D"bool">false</merge>=20
                   <merge key=3D"volume.policy.mount_option.noatime"
                       type=3D"bool">true</merge>=20
                                     </match>=20
                <match key=3D"@block.storage_device:storage.removable"
                             bool=3D"true">=20
                                                              <!-- Was
                            true before -->=20
                     <merge key=3D"volume.policy.mount_option.sync"
                       type=3D"bool">false</merge>=20
                   <merge key=3D"volume.policy.mount_option.noatime"
                       type=3D"bool">true</merge>=20
                                     </match>=20
                                    </match>=20
                                   =20


Now I can transfer with much higher speeds (~ 4 MB/s). The only thing is
that it takes a while to umount the device.

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Am Montag, den 18.07.2005, 15:21 +0200 schrieb Jens Gassmann:
<BLOCKQUOTE TYPE=3DCITE>
<PRE>
<FONT COLOR=3D"#000000">Mit der Kernelversion 2.6.12-r4 habe ich das Proble=
m auch, die -r5 </FONT>
<FONT COLOR=3D"#000000">konnte ich nicht nicht testen,</FONT>
</PRE>
</BLOCKQUOTE>
<BR>
Guten Tag zusammen,<BR>
<BR>
vor kurzem bin ich mit meinem USB-Stick ebenfalls ausgebremst worden.<BR>
Im Gentoo-Forum beschuldigten einige aber nicht den Kernel, sondern HAL.<BR=
>
<BR>
<A HREF=3D"http://forums.gentoo.org/viewtopic-t-356789-highlight-slow+usb.h=
tml">http://forums.gentoo.org/viewtopic-t-356789-highlight-slow+usb.html</A=
><BR>
<BR>
Bei mir was das des Pudels Kern (statt 5h f&#252;r 600MB nur noch wenige Mi=
nuten)<BR>
<BR>
Gr&#252;&#223;e<BR>
<BR>
Matthias<BR>
<BR>
Zitat:<BR>
<B>USB</B> 2.0 will <B>slow</B> down extremely when writing to an (<B>USB</=
B>) device with vfat if you mount it with the &quot;sync&quot;-option. Unfo=
rtunately HAL exactly did this if the device was smaller than 2 GB. So I ha=
d to edit the file /usr/share/hal/fdi/90defaultpolicy/storage-policy.fdi an=
d made this changes: <BR>
<BR>
&lt;!-- Use noatime and sync options for all hotpluggable or removable volu=
mes smaller than 2GB --&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;match key=3D&quot;volume.size&quot; =
compare_lt=3D&quot;2147483648&quot;&gt; <BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;matc=
h key=3D&quot;@block.storage_device:storage.hotpluggable&quot; bool=3D&quot=
;true&quot;&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;!-- Was tru=
e before --&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.sync&quot; type=3D&quot;bool&quot;&gt;false&lt;/merg=
e&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.noatime&quot; type=3D&quot;bool&quot;&gt;true&lt;/me=
rge&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/match&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;match key=3D&quot;@block.stor=
age_device:storage.removable&quot; bool=3D&quot;true&quot;&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;!-- Was tru=
e before --&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.sync&quot; type=3D&quot;bool&quot;&gt;false&lt;/merg=
e&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.noatime&quot; type=3D&quot;bool&quot;&gt;true&lt;/me=
rge&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/match&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/match&gt; <BR>
<DIV ALIGN=3Dcenter><TABLE CELLSPACING=3D"1" CELLPADDING=3D"3" WIDTH=3D"90%=
">
<TR>
<TD>
<B>Code:</B>
</TD>
</TR>
<TR>
<TD>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;!-- Use noatime =
and sync options for all hotpluggable or removable <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;volumes smaller than=
 2GB --&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;match key=3D&quot;volume.size&quot; =
compare_lt=3D&quot;2147483648&quot;&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;match key=3D&quot;@block.stor=
age_device:storage.hotpluggable&quot; bool=3D&quot;true&quot;&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;!-- Was tru=
e before --&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.sync&quot; type=3D&quot;bool&quot;&gt;false&lt;/merg=
e&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.noatime&quot; type=3D&quot;bool&quot;&gt;true&lt;/me=
rge&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/match&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;match key=3D&quot;@block.stor=
age_device:storage.removable&quot; bool=3D&quot;true&quot;&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp=
; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nb=
sp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;!-- Was tru=
e before --&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.sync&quot; type=3D&quot;bool&quot;&gt;false&lt;/merg=
e&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;merge key=3D&quot;volu=
me.policy.mount_option.noatime&quot; type=3D&quot;bool&quot;&gt;true&lt;/me=
rge&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/match&gt; <BR>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;/match&gt; <BR>
<BR>
</TD>
</TR>
</TABLE></DIV>
<BR>
<BR>
Now I can transfer with much higher speeds (~ 4 MB/s). The only thing is th=
at it takes a while to umount the device.
</BODY>
</HTML>

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