From nobody Thu Apr 07 13:39:58 2022 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 003991A8A500; Thu, 7 Apr 2022 13:40:04 +0000 (UTC) (envelope-from egoitz@ramattack.net) Received: from cu01208b.smtpx.saremail.com (cu01208b.smtpx.saremail.com [195.16.151.183]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4KZ2Yt5pt4z4TQY; Thu, 7 Apr 2022 13:40:01 +0000 (UTC) (envelope-from egoitz@ramattack.net) Received: from www.saremail.com (unknown [194.30.0.183]) by sieve-smtp-backend01.sarenet.es (Postfix) with ESMTPA id AA01060C45C; Thu, 7 Apr 2022 15:39:58 +0200 (CEST) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@freebsd.org MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_cc796372be3f66b49dc427201012caa6" Date: Thu, 07 Apr 2022 15:39:58 +0200 From: egoitz@ramattack.net To: Stefan Esser Cc: mike tancsa , Bob Friesenhahn , freebsd-fs@freebsd.org, freebsd-hackers@freebsd.org, Freebsd performance Subject: Re: {* 05.00 *}Re: Re: Desperate with 870 QVO and ZFS 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> <7aa95cb4bf1fd38b3fce93bc26826042@ramattack.net> <0702dc56-28ba-7e99-d599-1036634d79e3@FreeBSD.org> Message-ID: X-Sender: egoitz@ramattack.net User-Agent: Saremail webmail X-Rspamd-Queue-Id: 4KZ2Yt5pt4z4TQY X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=pass (policy=reject) header.from=ramattack.net; spf=pass (mx1.freebsd.org: domain of egoitz@ramattack.net designates 195.16.151.183 as permitted sender) smtp.mailfrom=egoitz@ramattack.net X-Spamd-Result: default: False [-3.79 / 15.00]; RCVD_TLS_LAST(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; XM_UA_NO_VERSION(0.01)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:195.16.151.0/24]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; ARC_NA(0.00)[]; RCPT_COUNT_FIVE(0.00)[6]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[ramattack.net,reject]; FROM_NO_DN(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; MLMMJ_DEST(0.00)[freebsd-fs,freebsd-hackers,freebsd-performance]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ASN(0.00)[asn:3262, ipnet:195.16.128.0/19, country:ES]; RCVD_COUNT_TWO(0.00)[2]; MID_RHS_MATCH_FROM(0.00)[] X-ThisMailContainsUnwantedMimeParts: N --=_cc796372be3f66b49dc427201012caa6 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 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, --=_cc796372be3f66b49dc427201012caa6 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=UTF-8

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= =2E...

 


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

=
I have got much better compression at same or less load by use of zs= td-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 attachment= s:

$ df /var/mdbox
Filesystem     &n= bsp;  1K-blocks    Used     &n= bsp;Avail Capacity  Mounted on
system/var/mdbox 7234048944 91708= 88 7224878056     0%    /var/mdbox
=
$ zfs get compression,compressratio,used,logicalused system/var/mdb= ox
NAME           &= nbsp;  PROPERTY       VALUE  &= nbsp;        SOURCE
system/va= r/mdbox  compression    zstd-2     =      inherited from system/var
system/var/md= box  compressratio  2.29x       &nb= sp;   -
system/var/mdbox  used    =        8.76G     &nb= sp;     -
system/var/mdbox  logicalused=    20.0G         &n= bsp; -

Regards, STefan
=  
= Nice to know Stefan, nice to know!,=
=  
= Cheers,
--=_cc796372be3f66b49dc427201012caa6--