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Groups > linux.debian.user > #171968
| From | David Christensen <dpchrist@holgerdanske.com> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: Debian server for backups of Windows clients |
| Date | 2016-09-10 05:40 +0200 |
| Message-ID | <sfHj3-3hP-7@gated-at.bofh.it> (permalink) |
| References | (2 earlier) <s3Xtf-4VJ-1@gated-at.bofh.it> <s45TP-1Zf-5@gated-at.bofh.it> <s4oD8-5EB-39@gated-at.bofh.it> <s4qYh-74Q-1@gated-at.bofh.it> <sfzbP-6zJ-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 09/09/2016 11:51 AM, Celejar wrote:
> On Tue, 9 Aug 2016 18:57:02 -0700
> David Christensen <dpchrist@holgerdanske.com> wrote:
>
> ...
>
>> My laptop has 802.11 a/b/g WiFi and Fast Ethernet. Wireless data
>> transfers are slow (~50 Mbps). Wired is twice as fast (100 Mbps); still
>> slow. Newer WiFi (n, ac) should be faster, but only the newest WiFi
>> hardware can match or beat Gigabit.
>
> You get ~50Mbps over a/b/g? 54Mbps is the theoretical maximum, and
> everything I've read says that 20-24Mbps is the real-world maximum.
>
> Celejar
>
Benchmarking using WiFi (48 Mb/s):
2016-09-09 20:18:51 dpchrist@t7400 ~
$ time dd if=/dev/urandom of=urandom.100M bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 12.6709 s, 8.3 MB/s
real 0m12.703s
user 0m0.000s
sys 0m12.481s
2016-09-09 20:19:32 dpchrist@t7400 ~
$ time scp -p urandom.100M samba:.
urandom.100M
100% 100MB 1.5MB/s 01:08
real 1m16.023s
user 0m4.548s
sys 0m0.744s
So, 1048576900 bytes * 8 bits / byte / 76.024 seconds
= 110341671 bits/second
Testing again using Fast Ethernet (100 Mb/s):
2016-09-09 20:29:54 dpchrist@t7400 ~
$ time scp -p urandom.100M samba:.
urandom.100M
100% 100MB 2.4MB/s 00:42
real 0m43.377s
user 0m4.476s
sys 0m0.876s
So, 1048576900 bytes * 8 bits / byte / 43.377 seconds
= 193388552. bits/second
Wow. Even worse than I was expecting...
David
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Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-08-02 23:20 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-08-03 05:30 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-08-08 20:30 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-08-09 05:30 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-08-10 01:30 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-08-10 04:00 +0200
Re: Debian server for backups of Windows clients Celejar <celejar@gmail.com> - 2016-09-09 21:00 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-09-09 21:50 +0200
Re: Debian server for backups of Windows clients Celejar <celejar@gmail.com> - 2016-09-09 23:20 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-09-11 14:30 +0200
Re: Debian server for backups of Windows clients deloptes <deloptes@gmail.com> - 2016-09-10 00:10 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-09-11 14:10 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-09-10 05:40 +0200
Re: Debian server for backups of Windows clients David Wright <deblis@lionunicorn.co.uk> - 2016-09-10 06:20 +0200
Re: Debian server for backups of Windows clients "Neal P. Murphy" <neal.p.murphy@alum.wpi.edu> - 2016-09-10 07:30 +0200
Re: Debian server for backups of Windows clients Dan Ritter <dsr@randomstring.org> - 2016-09-10 14:50 +0200
Re: Debian server for backups of Windows clients rhkramer@gmail.com - 2016-09-10 16:30 +0200
Re: Debian server for backups of Windows clients Gene Heskett <gheskett@shentel.net> - 2016-09-10 16:50 +0200
Re: Debian server for backups of Windows clients rhkramer@gmail.com - 2016-09-10 17:00 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-09-10 17:40 +0200
Re: Debian server for backups of Windows clients Gene Heskett <gheskett@shentel.net> - 2016-09-10 19:40 +0200
Re: Debian server for backups of Windows clients "Neal P. Murphy" <neal.p.murphy@alum.wpi.edu> - 2016-09-11 07:50 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-09-10 08:20 +0200
Re: Debian server for backups of Windows clients Celejar <celejar@gmail.com> - 2016-09-11 04:30 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-09-09 21:50 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-09-10 05:50 +0200
Re: Debian server for backups of Windows clients Celejar <celejar@gmail.com> - 2016-09-11 04:30 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-09-11 05:10 +0200
Re: Debian server for backups of Windows clients didier gaumet <didier.gaumet@gmail.com> - 2016-08-03 10:40 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-08-10 01:40 +0200
Re: Debian server for backups of Windows clients didier gaumet <didier.gaumet@gmail.com> - 2016-08-11 18:50 +0200
Re: Debian server for backups of Windows clients didier gaumet <didier.gaumet@gmail.com> - 2016-08-11 19:00 +0200
Re: Debian server for backups of Windows clients Darac Marjal <mailinglist@darac.org.uk> - 2016-08-08 11:10 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-08-08 22:10 +0200
Re: Debian server for backups of Windows clients David Christensen <dpchrist@holgerdanske.com> - 2016-08-09 05:30 +0200
Re: Debian server for backups of Windows clients Mike McGinn <mikemcginn@mcginnweb.net> - 2016-08-09 15:40 +0200
Re: Debian server for backups of Windows clients Glenn English <ghe@slsware.net> - 2016-08-08 23:40 +0200
Re: Debian server for backups of Windows clients Daniel Bareiro <daniel-listas@gmx.net> - 2016-08-09 03:20 +0200
Re: Debian server for backups of Windows clients Joel Wirāmu Pauling <joel@aenertia.net> - 2016-08-10 02:20 +0200
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