Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 20 Oct 2015 16:15:23 +0800 (CST)
From:      "daisy.zhao" <sales2@lianfa-group.net>
To:        freebsd-questions@freebsd.org
Subject:   Fw:oxygen acetylene gas welding hose with ISO3821
Message-ID:  <78ea034c.16b96.15084512af6.Coremail.sales2@lianfa-group.net>

next in thread | raw e-mail | index | archive | help
RGVhciBNYW5hZ2VyLAoKIAoKR29vZCBkYXkgdG8geW91IQoKVGhpcyBpcyBkYWlzeSBmcm9tIENo
aW5hLgoKT3VyIGZhY3RvcnkgaXMgSmlhbmdzdSBIYW9ndWFuIFJ1YmJlciBhbmQgSW5kdXN0cnkg
Q28uLEx0ZC4KCiAKCldlIGtub3cgeW91ciBjb21wYW55IGZyb20gaW50ZXJuZXQuCgpPdXIgbWFp
biBwcm9kdWN0cyBhcmUgb3h5Z2VuL2FjZXR5bGVuZS9wcm9wYW5lL2Fpci93YXRlci9MUEcvb2ls
IGhvc2UgYW5kIHdlbGRpbmcgY3V0dGluZyB0b3JjaCBhbmQgbm96emxlLgoKIAoKV2UgaGF2ZSBi
b3RoIElTTzM4MjEgYW5kIElTTzkwMDEgY2VydGlmaWNhdGUsIGFuZCB3ZSBhbHJlYWR5IGV4cG9y
dGVkIHRvIG1hbnkgY29tcGFuaWVzIGluIEVVIGFuZCBVUy4KClRoZXkgYXJlIHNhdGlzZmllZCB3
aXRoIG91ciBob3Nlcy4KCiAKCkRvIHlvdSBoYXZlIGFueSBwdXJjaGFzaW5nIHBsYW4gb2YgdGhl
c2UgcnViYmVyIGhvc2VzIGFuZCBjdXR0aW5nIHRvb2xzPwoKSWYgeWVzLCBwbHMgZG9uJ3QgaGVz
aXRhdGUgdG8gY29udGFjdCB1cy4KCldhaXRpbmcgZm9yIHlvdXIgbmV3cy4KClRoYW5rcy4KCgot
LS0tLS0tLS0tLS0tLS0tLS0KIAoKCgoKIAoKCgoKCiAKCgoKCgogCgoKCgoKIAoKCgoKCiA=
From owner-freebsd-questions@freebsd.org  Tue Oct 20 14:56:57 2015
Return-Path: <owner-freebsd-questions@freebsd.org>
Delivered-To: freebsd-questions@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id A0716A1A52E
 for <freebsd-questions@mailman.ysv.freebsd.org>;
 Tue, 20 Oct 2015 14:56:57 +0000 (UTC) (envelope-from wam@hiwaay.net)
Received: from fly.hiwaay.net (fly.hiwaay.net [216.180.54.1])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 72FED254
 for <freebsd-questions@freebsd.org>; Tue, 20 Oct 2015 14:56:57 +0000 (UTC)
 (envelope-from wam@hiwaay.net)
Received: from kabini1.local (dynamic-216-186-213-32.knology.net
 [216.186.213.32] (may be forged)) (authenticated bits=0)
 by fly.hiwaay.net (8.13.8/8.13.8/fly) with ESMTP id t9KEusAF011744
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO)
 for <freebsd-questions@freebsd.org>; Tue, 20 Oct 2015 09:56:55 -0500
To: FreeBSD Questions !!!! <freebsd-questions@freebsd.org>
From: "William A. Mahaffey III" <wam@hiwaay.net>
Subject: Post install FWIW
Message-ID: <56265636.4050208@hiwaay.net>
Date: Tue, 20 Oct 2015 10:02:24 -0453.75
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101
 Thunderbird/38.3.0
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>;
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 20 Oct 2015 14:56:57 -0000



I decided to do a bit of light benchmarking on my newly provisioned 
MythTV-to-be box, w/ 2X 1TB HDD's, 7200 RPM, SATA3, 2.5" formactor, in 
an unmirrored XFS pool:


[root@mythbox, /etc, 9:50:49am] 345 % time dd if=/dev/zero 
of=/home/testfile  bs=16k count=32768
32768+0 records in
32768+0 records out
536870912 bytes transferred in 1.504679 secs (356800912 bytes/sec)
  whew !!!! that took (0.023 cpu + 1.479 sys) sec., 0:01.50 elapsed time 
tot, 99.3% CPU efficiency
         (25 text, 2768 data, 1660 max) KB, (0+32768) io, 0 pfs + 0 swaps
[root@mythbox, /etc, 9:51:15am] 346 % lltr /home/
total 524561
drwxr-xr-x  3 wam   users         13 Oct 19 23:50 wam/
-rw-r--r--  1 root  wheel  536870912 Oct 20 09:51 testfile
[root@mythbox, /etc, 9:51:30am] 347 % time dd if=/dev/zero 
of=/home/testfile bs=1m count=32768
32768+0 records in
32768+0 records out
34359738368 bytes transferred in 154.287960 secs (222698766 bytes/sec)
  whew !!!! that took (0.211 cpu + 32.909 sys) sec., 2:34.39 elapsed 
time tot, 21.4% CPU efficiency
         (25 text, 2753 data, 2664 max) KB, (0+0) io, 0 pfs + 0 swaps
[root@mythbox, /etc, 9:55:11am] 348 % lltr /home/
total 33571089
drwxr-xr-x  3 wam   users           13 Oct 19 23:50 wam/
-rw-r--r--  1 root  wheel  34359738368 Oct 20 09:55 testfile
[root@mythbox, /etc, 9:57:41am] 349 % df -h ; hddtemp /dev/ada[0-3] ; w 
; pstat -hms ; uname -a ; hwclock -r ; date
Filesystem          Type       Size    Used   Avail Capacity Mounted on
zroot/ROOT/default  zfs        1.7T    472M    1.7T     0%    /
devfs               devfs      1.0k    1.0k      0B   100%    /dev
tmpfs               tmpfs      8.0G    4.0k      8G     0%    /tmp
fdescfs             fdescfs    1.0k    1.0k      0B   100% /dev/fd
zroot/home          zfs        1.8T     32G    1.7T     2%    /home
zroot/usr           zfs        1.7T    1.3G    1.7T     0%    /usr
zroot/usr/local     zfs        1.7T     27M    1.7T     0% /usr/local
zroot/var           zfs        1.7T    4.3M    1.7T     0%    /var
zroot/var/crash     zfs        1.7T    148k    1.7T     0% /var/crash
zroot/var/db        zfs        1.7T    215M    1.7T     0% /var/db
zroot/var/db/pkg    zfs        1.7T     25M    1.7T     0% /var/db/pkg
zroot/var/empty     zfs        1.7T    144k    1.7T     0% /var/empty
zroot/var/log       zfs        1.7T    236k    1.7T     0% /var/log
zroot/var/mail      zfs        1.7T    144k    1.7T     0% /var/mail
zroot/var/run       zfs        1.7T    256k    1.7T     0% /var/run
zroot/var/tmp       zfs        1.7T    152k    1.7T     0% /var/tmp
SMART supported, SMART enabled
drive /dev/ada0: HGST HTS721010A9E630, S/N: JR10046P2YAK7N, Temp. 24 
degC, min/max, cycle: 20/25, lifetime: 16/29, lifetime avg. 23 degC
drive /dev/ada1: HGST HTS721010A9E630, S/N: JR10046P2YAGTN, Temp. 24 
degC, min/max, cycle: 20/25, lifetime: 16/29, lifetime avg. 22 degC
  9:57AM  up  1:50, 2 users, load averages: 0.03, 0.11, 0.06
USER       TTY      FROM                      LOGIN@  IDLE WHAT
wam        pts/0    kabini1.local             8:08AM     - w
wam        pts/1    kabini1.local             8:19AM  1:36 -tcsh (tcsh)
Device          1M-blocks     Used    Avail Capacity
/dev/gpt/swap0      16384       0B      16G     0%
/dev/gpt/swap1      16384       0B      16G     0%
Total               32768       0B      32G     0%
FreeBSD mythbox.local 9.3-RELEASE-p24 FreeBSD 9.3-RELEASE-p24 #0: Sat 
Aug 22 01:54:44 UTC 2015 
root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
hwclock: Command not found.
Tue Oct 20 09:57:50 MCDT 2015
[root@mythbox, /etc, 9:57:50am] 350 %


I think I am reading that at 220-ish MB/s for a large (obviously simple) 
file write. When I dd'ed /dev/zero to (re-) initialize the individual 
drives during install, I saw 125-ish MB/s per drive, so this is 90-ish % 
efficient for this write. That is fabulous AFAIAC !!!! *Boooooyah !!!!*


-- 

	William A. Mahaffey III

  ----------------------------------------------------------------------

	"The M1 Garand is without doubt the finest implement of war
	 ever devised by man."
                            -- Gen. George S. Patton Jr.




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?78ea034c.16b96.15084512af6.Coremail.sales2>