Re: {* 05.00 *}Re: Re: Desperate with 870 QVO and ZFS

[email protected] Thu, 07 Apr 2022 15:39:58 +0200
Newsgroups gmane.os.freebsd.devel.hackers,gmane.os.freebsd.devel.file-systems,gmane.os.freebsd.performance
Message-ID <[email protected]>
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Hi Stefan!!, 

Thank you so much. I can't be more thankful. 

I answer below in bold blue for instance... for better seeing my
answers....

El 2022-04-06 23:59, Stefan Esser escribió:

> I have got much better compression at same or less load by use of zstd-2
> compared to lz4. 
> 
> I ASSUME PEOPLE WOULD NORMALLY USES LZOP DUE TO IT'S KNOWN LIGHT CPU LOAD NEEDED... 
> I TAKE NOT TOO OF ZSTD-2.... 
> 
> Perhaps not typical, since this is a dovecot mdbox formatted mail pool
> holding mostly plain text messages without large attachments:
> 
> $ df /var/mdbox
> Filesystem        1K-blocks    Used      Avail Capacity  Mounted on
> system/var/mdbox 7234048944 9170888 7224878056     0%    /var/mdbox
> 
> $ zfs get compression,compressratio,used,logicalused system/var/mdbox
> NAME              PROPERTY       VALUE           SOURCE
> system/var/mdbox  compression    zstd-2          inherited from system/var
> system/var/mdbox  compressratio  2.29x           -
> system/var/mdbox  used           8.76G           -
> system/var/mdbox  logicalused    20.0G           -
> 
> Regards, STefan 
> 
> NICE TO KNOW STEFAN, NICE TO KNOW!, 
> 
> CHEERS,
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<p>Hi Stefan!!,</p>
<p><br /></p>
<p>Thank you so much. I can't be more thankful.</p>
<p><br /></p>
<p>I answer below in bold blue for instance... for better seeing my answers=
=2E...</p>
<div>&nbsp;</div>
<p><br /></p>
<p>El 2022-04-06 23:59, Stefan Esser escribi&oacute;:</p>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><!-- html ignored --><!-- head ignored --><!-- meta ig=
nored -->
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<br /> I have got much better compression at same or less load by use of zs=
td-2<br /> compared to lz4.</div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
&nbsp;</div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<strong><span style=3D"color: #0000ff;">I assume people would normally uses=
 lzop due to it's known light cpu load needed... </span></strong></div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<strong><span style=3D"color: #0000ff;">I take not too of zstd-2....</span>=
</strong></div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<br /> <br /> Perhaps not typical, since this is a dovecot mdbox formatted =
mail pool<br /> holding mostly plain text messages without large attachment=
s:<br /> <br /> $ df /var/mdbox<br /> Filesystem &nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;1K-blocks &nbsp;&nbsp;&nbsp;Used &nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;Avail Capacity &nbsp;Mounted on<br /> system/var/mdbox 7234048944 91708=
88 7224878056 &nbsp;&nbsp;&nbsp;&nbsp;0% &nbsp;&nbsp;&nbsp;/var/mdbox<br />=
 <br /> $ zfs get compression,compressratio,used,logicalused system/var/mdb=
ox<br /> NAME &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;PROPERTY &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;VALUE &nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SOURCE<br /> system/va=
r/mdbox &nbsp;compression &nbsp;&nbsp;&nbsp;zstd-2 &nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;inherited from system/var<br /> system/var/md=
box &nbsp;compressratio &nbsp;2.29x &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;-<br /> system/var/mdbox &nbsp;used &nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.76G &nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-<br /> system/var/mdbox &nbsp;logicalused=
 &nbsp;&nbsp;&nbsp;20.0G &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;-<br /> <br /> Regards, STefan</div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
&nbsp;</div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<strong><span style=3D"color: #0000ff;">Nice to know Stefan, nice to know!,=
</span></strong></div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
&nbsp;</div>
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<strong><span style=3D"color: #0000ff;">Cheers,</span></strong></div>
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