Date: Thu, 07 Apr 2022 15:39:58 +0200
From: egoitz@ramattack.net
To: Stefan Esser <se@freebsd.org>
Cc: mike tancsa <mike@sentex.net>, Bob Friesenhahn <bfriesen@simple.dallas.tx.us>, freebsd-fs@freebsd.org, freebsd-hackers@freebsd.org, Freebsd performance <freebsd-performance@freebsd.org>
Subject: Re: {* 05.00 *}Re: Re: Desperate with 870 QVO and ZFS
Message-ID: <f8efcdd91ba6ce848062c2ad4fe70a57@ramattack.net>
In-Reply-To: <0702dc56-28ba-7e99-d599-1036634d79e3@FreeBSD.org>
References: <4e98275152e23141eae40dbe7ba5571f@ramattack.net> <665236B1-8F61-4B0E-BD9B-7B501B8BD617@ultra-secure.de> <0ef282aee34b441f1991334e2edbcaec@ramattack.net> <28e11d7ec0ac5dbea45f9f271fc28f06@ramattack.net> <ca3f86f2-94a1-be94-ad55-7bd1c9bc50ab@grosbein.net> <7aa95cb4bf1fd38b3fce93bc26826042@ramattack.net> <alpine.GSO.2.20.2204061513180.9475@scrappy.simplesystems.org> <d8eec440-aff5-e2c7-35d5-04ac96939213@sentex.net> <0702dc56-28ba-7e99-d599-1036634d79e3@FreeBSD.org>
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[-- Attachment #1 --] 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, [-- Attachment #2 --] <html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /></head><body style='font-size: 10pt; font-family: Verdana,Geneva,sans-serif'> <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....</p> <div> </div> <p><br /></p> <p>El 2022-04-06 23:59, Stefan Esser escribió:</p> <blockquote type="cite" style="padding: 0 0.4em; border-left: #1010ff 2px solid; margin: 0"><!-- html ignored --><!-- head ignored --><!-- meta ignored --> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"><br /> I have got much better compression at same or less load by use of zstd-2<br /> compared to lz4.</div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"> </div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"><strong><span style="color: #0000ff;">I assume people would normally uses lzop due to it's known light cpu load needed... </span></strong></div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"><strong><span style="color: #0000ff;">I take not too of zstd-2....</span></strong></div> <div class="pre" style="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 attachments:<br /> <br /> $ df /var/mdbox<br /> Filesystem 1K-blocks Used Avail Capacity Mounted on<br /> system/var/mdbox 7234048944 9170888 7224878056 0% /var/mdbox<br /> <br /> $ zfs get compression,compressratio,used,logicalused system/var/mdbox<br /> NAME PROPERTY VALUE SOURCE<br /> system/var/mdbox compression zstd-2 inherited from system/var<br /> system/var/mdbox compressratio 2.29x -<br /> system/var/mdbox used 8.76G -<br /> system/var/mdbox logicalused 20.0G -<br /> <br /> Regards, STefan</div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"> </div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"><strong><span style="color: #0000ff;">Nice to know Stefan, nice to know!,</span></strong></div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"> </div> <div class="pre" style="margin: 0; padding: 0; font-family: monospace"><strong><span style="color: #0000ff;">Cheers,</span></strong></div> </blockquote> </body></html>
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