[mythtv-users] OT: Homeplug "85Mbps" to link mythbox

Sun Jul 2 09:06:32 UTC 2006

I read the mail below from another mythtv user using the devolo MicroLink dLAN HighSpeed 85Mbps.
Still I bought it. I had more worse figures than the original writer. My max. was 2.8Mb between to ajacent rooms. I returned it.Here are two mails from the original writer, translated with systran and the original german at the end:

SYSTRAN Translation:

Mail to Devolo:

I got mine on Tuesday 05.07.2005 DL on Highspeed starter package.
The installation ran problem-free. In differently areas I have measurements
through-taken. Results are ernuechternd.

The consideration to the purchase was the building of a file server in the cellar for
Video photographs. A client in the bedrooms (3 recording channels and 1
Playing channel) and next year a client in the living room (1 recording channel
and 1 playing channel). For each channel becomes a transfer throughput of 0.6MB
needed. Totally 3.6MB/sec. Content I would already be with 2.4MB/sec.

I have my tests with a Linux (2.8Ghz, into different areas in EEC
and cellars) and a Solaris Sparc Ultra-10 440Mhz (in the office) accomplished.
When transportation minutes, which are to be used in the employment, have
I NFS with different write/read buffer sizes and udp/tcp alternatively
made.

The following instruction was adapted in each case and on the Linux computer
implemented:
umount/mnt/sttest
mount t NFS o "rsize=4096, wsize=4096, nfsvers=3, UDP" sol:/export/store
/ mnt/sttest
rm/mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024

The measurements were based on two different days.
Here the result:

--------------------------------------------
Two computers at a SWITCH (without HighSpeed!)
10.8MB to 11.5MB

rsize=4096 - 10.8MB
rsize=65536 - 11.5MB

No large difference is to be constituted between UDP and tcp.

--------------------------------------------
Resembles plug socket: Signal rate 72Mbit
Bedroom: 62Mbit

UDP
rsize=2048 - 2.8MB
rsize=4096 - 3.4MB, 3.3MB (second day)
rsize=8196 - 2.8MB

tcp
rsize=4096 - 2.8MB, 3,0 MT
rsize=8196 - 2.8MB, 3,2 MT
rsize=16384 3.2MB, 3,4 MT
rsize=32768 3.3MB, 3,4 MT
rsize=65536 3.3MB, 3,3 MT

Both (plug socket/bedrooms) were identical, despite 10Mbit
Signal difference.
TCP is to before courses.
UDP has only an optimum with rsize/wsize of 4096.
The maximum is an information flow-rate of 3.4MB.

--------------------------------------------
Cellar location 1: Signal 11Mbit
Values between 320KB and 400KB, dependent on tcp/udp and buffer size

Cellar location 2: Signal 20Mbit
Values between 350KB and 480KB

Cellar location 3 (auxiliary building): 9Mbit
No measurements accomplished.

Repetitions resulted in in the case of same attitude comparable values.
Rule measure is always somewhat positive.
Unfortunately results are my project a file server in the cellar too with this
platzieren completely burst!

--------------------------------------------
Living room: 44Mbit - day 1
1.3MB - 1.6MB

Living room: 46Mbit - day 2
1.1MB - 1.2MB

Even with a higher signal value, worse results (-25%).
On the second day eineWaschmachine which possibly ran to this result
contributed (Tumbler/Trockenraum did not run).

--------------------------------------------
Also tests with ftp were made. There here the buffer sizes not
to be optimized can, were somewhat worse test results.
In one their company QA/REPORTS (she cannot find unfortunately any longer) I could
read that only 50Mbit can be used, this enspricht only 60% of
85Mbit. They become no injustice with your interpretation (similarly how
this with WLAN to be made) to have. But as a customer I fill
been deceptive.
With a SWITCH of 100Mbit I receive with an optimal buffer size
Attitude 11.5MB (departure Overhead ~5% considers).
Nevertheless of 50Mbit I expect one into the most optimal constellation
Information flow-rate from for instance 6MB (TCP/UDP/IP Overhead taken off).
Only half (3.4MB) was maximum reached.
In the dwelling 1.2MB were measured as maximum in one of the rooms,
which corresponds only to 20% (relative to 50Mbit).
In the cellar one can count this at the most on 400KB, corresponds to about 6%
(relative to 50Mbit).

In the appendix you find to two files with results of test, however without
Explanation.
They found some critical ones words, hope here I you become these
to understand constructional can.
--------------------------------------------

My desire to receive I do not have 3.6MB also into the best test
reached. The maximum was 3.4MB.
An employment in the cellar is completely impossible (~400KB).
Only one file server remains in the office as alternative. But I do not need
DLAN Highspeed in the bedroom. A Ethernet connection exists already.
Planned for close test year a client in the living room, but with one
Information flow-rate of ~1.2MB is scarcely limited this.

Since the cellar with different walls and soils is bent, is WLAN
no guaranteed alternative for me. At the most the new MIMO Technology
is promising. This was to be set the reason on DLan Highspeed. I
are however very entaeuscht over the achievement.

--------------
Mail from Devolo support

the data transmission rates indicated in the Informer cannot be converted indeed directly to the data transmission rates the 
available.

>From the data transmission rate angezeiten there log data for TCP takes, Ethernet and DL on approx.. 65% in requirement, soda for 
the pure data communication normally approx.. 35% in accordance with the announcement in the Informer are available. Their mentioned 
20% are indeed less, than would be to be expected.

This could be connected with the following interference sources in electricity mains:

DL on/DL on USB:
Contact strips with switch and/or Ueberspannungschutz/master Slave circuit
Transmission over several phases
viele/starke consumers in the proximity DL on
(computer, monitor, Notebooknetzteile, lamps with dimmer)
furnished network bridge
furnished Firewalls

If you liked to return the devices nevertheless, this would be unfortunately not direct only over your dealer possible, over us.

 Service center service LINE: 01805 338656 (0.12 euro/minute)
Lock beautiful outer E-Mail: support at devolo.de
 STR. 6-8 InterNet: http://www.devolo.de
 D-52072 Aachen
***********************************************************************
The maximum I got with Devolo Hispeed was 3.4MBytes. Two rooms near each other.
>From one room to the opposite room 1.2Mbyte.
>From one room the the basement (cellar, 1 floor below) only 340Kbyte). Actually they were just 3 meters from each other :)

Be aware when speaking in Mbps, this is also used for advertisements, is that it contains the overhead within it.

>From Devolo Support:
Von der dort angezeiten Übertragungsrate nehmen die Protokolldaten für TCP, Ethernet und dLAN ca. 65% in Anspruch, sodas für die
reine Datenübertragung normalerweise ca. 35% gemäß der Anzeige im Informer zur Verfügung stehen. Ihre erwähnten 20% sind in der Tat
weniger, als zu erwarten wäre.

Translated this means that 65% is used for TCP, Ethernet and DLAN Protokolldata. Only 35% is used for the actual data !!!! This is
only 3.8MBytes.
In my best-case I only got 3.4MBytes.

Pascal

Hello I did thorough testing with the devolo HiSpeed produkt at my new home.
Please find a reply form the devolo-support and my mail in german; I am sorry.
There are also some figures within it, you might understand.
Please find also the used commands and the throughput figures as seperate files attached.

--------------------
Mail from Devolo-Support

die im Informer angezeigten Übertragungsraten können in der Tat nicht direkt auf die zur Verfügung stehenden Datenübertragungsraten 
umgerechnet werden.

Von der dort angezeiten Übertragungsrate nehmen die Protokolldaten für TCP, Ethernet und dLAN ca. 65% in Anspruch, sodas für die 
reine Datenübertragung normalerweise ca. 35% gemäß der Anzeige im Informer zur Verfügung stehen. Ihre erwähnten 20% sind in der Tat 
weniger, als zu erwarten wäre.

Dies könnte mit folgenden Störquellen im Stromnetz zusammenhängen:

dLAN/dLAN USB:
-Steckerleisten mit Schalter und/oder Überspannungschutz/ Master-Slave Schaltung
-Übertragung über mehrere Phasen
-viele/starke Verbraucher in der Nähe der dLAN
(Rechner, Monitor, Notebooknetzteile, Lampen mit Dimmer)
-eingerichtete Netzwerkbrücke
-eingerichtete Firewalls

Wenn Sie die Geräte dennoch zurückgeben möchten, wäre dies nur über Ihren Händler möglich, leider nicht direkt über uns.

Mit freundlichen Grüßen
Dirk Heckel
Ihr Devolo Support-Team

-------------------------
Mail to Devolo:

Ich habe am Dienstag 05.07.2005 mein dLAN Highspeed Starterpaket bekommen.
Die Installation verlief problemlos. In verschieden Räume habe ich Messungen
durchgenommen. Die Resultaten sind ernüchternd.

Die Erwägung zum Kauf war den Bau eines Fileservers im Keller für
Videoaufnahmen. Ein Klient im Schlafzimmer (3 Aufnahme-Kanäle und 1
AbspielKanal) und nächstes Jahr ein Klient im Wohnzimmer (1 Aufnahme-Kanal
und 1 AbspielKanal). Für jeden Kanal wird einen Transferdurchsatz von 0.6MB
benötigt. Total 3.6MB/sec. Zufrieden wäre ich bereits mit 2.4MB/sec.

Ich habe meine Tests mit einem Linux (2.8Ghz, in verschiedene Räume im EG
und Keller) und einer Solaris Sparc Ultra-10 440Mhz (im Büro) durchgeführt.
Als Transportprotokoll, welche auch im Einsatz verwendet werden soll, habe
ich NFS mit verschiedene Schreib/Lese-Puffer-Grössen und udp/tcp wahlweise
vorgenommen.

Folgender Befehl wurde jeweils angepasst und auf dem Linux Rechner
ausgeführt:
umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store
/mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024

Die Messungen wurden an zwei unterschiedliche Tagen gemessen.
Hier das Resultat:

---------------------------------------------
Zwei Computer an einem Switch (ohne HighSpeed!)
10.8MB bis 11.5MB

rsize=4096 - 10.8MB
rsize=65536 - 11.5MB

Keinen grossen Unterschied ist zwischen udp und tcp auszumachen.

---------------------------------------------
Gleiche Steckdose: Signalrate 72Mbit
Schlafzimmer: 62Mbit

        udp
            rsize=2048 - 2.8MB
            rsize=4096 - 3.4MB,  3.3MB (zweiter Tag)
            rsize=8196 - 2.8MB

        tcp
            rsize=4096 - 2.8MB, 3.0 MB
            rsize=8196 - 2.8MB, 3.2 MB
            rsize=16384  3.2MB, 3.4 MB
            rsize=32768  3.3MB, 3.4 MB
            rsize=65536  3.3MB, 3.3 MB

Beide (Steckdose/Schlafzimmer) waren identisch, trotz 10Mbit
Signalunterschied.
TCP ist zu bevorzügen.
UDP hat nur ein Optimum bei rsize/wsize von 4096.
Das Maximum ist ein Datendurchsatz von 3.4MB.

---------------------------------------------
Keller Standort 1: Signal 11Mbit
Werten zwischen 320KB und 400KB, abhängig von tcp/udp und Puffergrösse

Keller Standort 2: Signal 20Mbit
Werten zwischen 350KB und 480KB

Keller Standort 3 (Nebengebäude): 9Mbit
Keine Messungen durchgeführt.

Wiederholungen ergaben bei gleicher Einstellung vergleichbare Werten. Ein
Regelmass ist immer etwas positives.
Leider sind mit diesen Ergebnisse mein Vorhaben ein Fileserver im Keller zu
platzieren komplett geplatzt !

---------------------------------------------
Wohnzimmer: 44Mbit - Tag 1
1.3MB - 1.6MB

Wohnzimmer: 46Mbit - Tag 2
1.1MB - 1.2MB

Sogar mit einem höheren Signalwert, schlechtere Ergebnisse (-25%).
Am zweiten Tag lief eineWaschmachine welche eventuell zu diesem Resultat
beigetragen hat (Tumbler/Trockenraum liefen nicht).

---------------------------------------------
Es wurden auch Tests mit FTP gemacht. Da hier die Puffergrössen nicht
optimiert werden können, waren die Testergebnissen etwas schlechter.
In einer Ihrer FAQs/Berichten (kann sie leider nicht mehr finden) konnte ich
lesen, dass nur 50Mbit genützt werden können, dies enspricht nur 60% von
85Mbit. Sie werden ja kein Unrecht mit Ihrer Interpretation (ähnlich wie
diese bei WLAN gemacht werden) haben. Aber als Kunde fülle ich mich
getäuscht.
Bei einem Switch von 100Mbit erhalte ich mit einer optimalen Puffergrösse
Einstellung 11.5MB (Abzug Overhead ~5% berücksichtigt).
Dennoch von 50Mbit erwarte ich in die optimalste Konstellation einen
Datendurchsatz von etwa 6MB (TCP/UDP/IP Overhead abgezogen).
Nur die Hälfte (3.4MB) wurde maximal erreicht.
In der Wohnung sind 1.2MB als Maximum in einem der Zimmer gemessen worden,
was nur 20% (relativ zu 50Mbit) entspricht.
Im Keller kann man höchstens mit 400KB rechnen, dies entspricht etwa 6%
(relativ zu 50Mbit).

Im Anhang finden Sie zwei Dateien mit Testresultaten, allerdings ohne
Erklärung.
Sie haben hier einige Kritische Worten gefunden, ich hoffe Sie werden diese
konstruktiv auffassen können.
---------------------------------------------

Mein Wunsch 3.6MB zu erhalten habe ich auch nicht in den besten Test
erreicht. Das Maximum ist 3.4MB gewesen.
Ein Einsatz im Keller ist völlig ausgeschlossen (~400KB).
Bleibt als Alternative nur ein Fileserver im Büro. Dafür brauche ich kein
DLAN Highspeed im Schlafzimmer. Eine Ethernet Verbindung besteht schon.
Geplant für nächstest Jahr ein Klient im Wohnzimmer, aber mit einem
Datendurchsatz von ~1.2MB ist dies knapp bemessen.

Da der Keller mit verschiedene Wände und Böden verwinkelt ist, ist WLAN
keine garantierte Alternative für mich. Höchstens die neue MIMO Technology
ist vielversprechend. Dies war der Grund auf DLan Highspeed zu setzen. Ich
bin allerdings sehr entäuscht über die Leistung.

> http://www.devolo.com/co_EN/produkte/dlan/mldlanhsethernet.html

-------------- next part --------------
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
200+0 records in
200+0 records out
13107200 bytes (13 MB) copied, 35.8531 seconds, 366 kB/s
minerva12:/mnt # man fstab
Reformatting fstab(5), please wait...
minerva12:/mnt # vi /etc/fstab
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=200
200+0 records in
200+0 records out
3276800 bytes (3.3 MB) copied, 5.81705 seconds, 563 kB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=200
200+0 records in
200+0 records out
3276800 bytes (3.3 MB) copied, 1.36076 seconds, 2.4 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 6.06131 seconds, 2.8 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 5.26098 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 5.40436 seconds, 3.1 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 23.8851 seconds, 2.8 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 21.05 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=8k count=1024
1024+0 records in
1024+0 records out
8388608 bytes (8.4 MB) copied, 2.65287 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=8k count=10240
10240+0 records in
10240+0 records out
83886080 bytes (84 MB) copied, 26.26 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=8k count=1024
1024+0 records in
1024+0 records out
8388608 bytes (8.4 MB) copied, 2.87331 seconds, 2.9 MB/s
minerva12:/mnt #
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 5.15083 seconds, 3.3 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 19.9613 seconds, 3.4 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 21.0112 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.4719 seconds, 3.3 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 5.18589 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.0969 seconds, 3.3 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
200+0 records in
200+0 records out
13107200 bytes (13 MB) copied, 46.2667 seconds, 283 kB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
200+0 records in
200+0 records out
13107200 bytes (13 MB) copied, 3.86849 seconds, 3.4 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
200+0 records in
200+0 records out
13107200 bytes (13 MB) copied, 4.85584 seconds, 2.7 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
200+0 records in
200+0 records out
13107200 bytes (13 MB) copied, 4.66607 seconds, 2.8 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=200
200+0 records in
200+0 records out
3276800 bytes (3.3 MB) copied, 1.22759 seconds, 2.7 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=200
200+0 records in
200+0 records out
3276800 bytes (3.3 MB) copied, 1.21701 seconds, 2.7 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 6.33259 seconds, 2.6 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=8k count=1024
1024+0 records in
1024+0 records out
8388608 bytes (8.4 MB) copied, 2.58403 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=8k count=2048
2048+0 records in
2048+0 records out
16777216 bytes (17 MB) copied, 5.29407 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 23.2073 seconds, 2.9 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 5.88626 seconds, 2.9 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
13107200 bytes (13 MB) copied, 6.46387 seconds, 2.0 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
200+0 records in
200+0 records out
13107200 bytes (13 MB) copied, 6.61073 seconds, 2.0 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.7325 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.6345 seconds, 3.3 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.6012 seconds, 3.3 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 19.7338 seconds, 3.4 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
1024+0 records in
1024+0 records out
16777216 bytes (17 MB) copied, 4.88766 seconds, 3.4 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=8k count=1024
1024+0 records in
1024+0 records out
8388608 bytes (8.4 MB) copied, 2.54096 seconds, 3.3 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 19.7843 seconds, 3.4 MB/s
minerva12:/mnt #
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 23.7617 seconds, 2.8 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.6513 seconds, 3.2 MB/s
minerva12:/mnt # umount /mnt/sttest
minerva12:/mnt # mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
minerva12:/mnt # rm /mnt/sttest/a
minerva12:/mnt # dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1024+0 records in
1024+0 records out
67108864 bytes (67 MB) copied, 20.5251 seconds, 3.3 MB/s
-------------- next part --------------
mount sol:/export/store -o "bg,soft,tcp,rsize=32768,wsize=32768,nfsvers=3,udp"
file error

umount /mnt/sttest
mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
366kB

umount /mnt/sttest
mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=200
563

umount /mnt/sttest
mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
3.2Mb

umount /mnt/sttest
mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
2.8Mb - 2.9 x 2.9

umount /mnt/sttest
mount -t nfs -o "rsize=8192,wsize=8192,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
3.2Mb

umount /mnt/sttest
mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=8k count=2048
2.9Mb - 3.2

umount /mnt/sttest
mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
3.3Mb x 3.3MB

umount /mnt/sttest
mount -t nfs -o "rsize=32768,wsize=32768,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
3.4Mb - 3.3Mb

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
2.8Mb x 3.0

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
3.2Mb

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
3.3Mb - 3.2 x 3.4MB

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
3.2Mb x 3.3MB

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
3.4Mb x 3.5MB

OPTIMAL udp
            rsize=2048 - 2.8Mb
            rsize=4096 - 3.4Mb x 3.3Mb
            rsize=8196 - 2.8Mb

        tcp
            rsize=4096 - 2.8Mb x 3.0
            rsize=8196 - 2.8Mb x 3.2
            rsize=16384  3.2Mb x 3.4
            rsize=32768  3.3Mb x 3.4
            rsize=65536  3.3Mb x 3.3

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
2.7Mb - 2.8

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
2.7Mb - 2.6

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200

===================================================================================== 
umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
10.8MB

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
11MB

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
11.4MB

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
11.5MB

=====================
11MBit

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
406KB

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
324KB

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
343kB

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,timeo=28,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
328kB

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,timeo=28,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
327kB

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200

===================================
Cablecom Verstärker
20Mbit

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
464kB

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
366kB
351

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,timeo=28,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
399kB

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
403

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=200
487kB

=====================================
Wohnzimmer
44Mbit

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
1.4Mb

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
877kB

umount /mnt/sttest
mount -t nfs -o "rsize=2048,wsize=2048,nfsvers=3,timeo=28,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
1.3MB

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
1.6MB

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
1.6MB

umount /mnt/sttest
mount -t nfs -o "rsize=4096,wsize=4096,nfsvers=3,udp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=1024
1.3MB

==========
Wohnzimmer 2e time, 45-46MBit

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
1.1MB

umount /mnt/sttest
mount -t nfs -o "rsize=65536,wsize=65536,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=64k count=200
1.2MB
==========================

Schlafzimmer, 62Mbit

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=1024
3.3MB

==================
gleiche Steckdose, 72MBit

umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
rm /mnt/sttest/a
dd if=/dev/zero of=/mnt/sttest/a bs=16k count=4096
3.5MB

================
Harddisk Linux
dd if=/dev/zero of=a bs=16k count=4096
9.8MB

dd if=/dev/zero of=a bs=64k count=10240
13.5MB

================
Harddisk Solaris
timex dd if=/dev/zero of=a bs=64k count=10240
14.3MB

================
ftp linux -> solaris
put 1.94MB
get 3.3MB am ende 2.9MB

ftp sol -> linux
put 2.9MB
get 3.1MB

NFS with file
dd if=1000_20050709092500_20050709093500.nuv of=/mnt/sttest bs=64k
umount /mnt/sttest
mount -t nfs -o "rsize=16384,wsize=16384,nfsvers=3,tcp" sol:/export/store /mnt/sttest
dd if=1000_20050709092500_20050709093500.nuv of=/mnt/sttest/a bs=64k
5847+1 records in
5847+1 records out
383195072 bytes (383 MB) copied, 117.81 seconds, 3.3 MB/s

-----
Linux Disk
dd if=/dev/zero of=/tmp/a bs=64k count=4096
268435456 bytes (268 MB) copied, 12.2627 seconds, 21.9 MB/s