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Hello,

I use my RPi2 as a network drive to access music/movies and save backups via SMB. Since the Rpi2 with 100Mbit-Lan and USB2 speed is very limited, for me therefore counts every bit/s.
With Raspbian and other distributions i always get a network speed of about 11-12MB/s(read/write) over SMB, with xbian however only 8-9MB/s(read) and 4-5MB/s(write).
Because as i said for me every bit/s counts, i wanted to switch to a Gbit-lan adapter. Since everything runs over a single USB controller, i expected no huge speedup, but with Raspbian or OSMC i reach a speed of 16MB/s(read) and 12-13MB/s(write) over SMB with the Adapter. With Xbian unfortunately i get again only asignificantly lower speed of 12MB/s(read) and 6-7MB/s(write):
XBian:

http://fs5.directupload.net/images/161025/yl52hnp4.png
OSMC:

http://fs5.directupload.net/images/161025/jbe8mqtl.png
-i testet the Speed with a fresh isntalled Xbian on a sandisk ultra 32GB SD Card.
-The values in the test are based on the informations of the Windows Explorer when reading and writing a 2Gb large ISO file (film) on the external HDD (ntfs)
-With my USB stick (ext4) the speeds ar minimally higher, but the ratio are the same.
-Is noticeable that with xbian at the start sometimes the reading speeds is as high as with OSMC (12MB/s) but after a while it breaks down to 8MB/s (like you cann see at the picture of Xian-write-100Mbit)
-same result with overclocking to 1100 Mhz

My Enviromet:
-PC and RPi2 connectet via Lan with my Gbit-Router (Unitmedian) an Cat6 cable.
-PC: I5 with Gbit-Lan and SSD (Windows 10).
-Hard Disks Pi2: Western Digital 4TB My Book-USB3-ntfs / SanDisk Extreme-USB3-ext4
-Sd Card Pi2: SanDisk Ultra 32GB

My question is now, does someone knows what the lower speeds with Xbian lie and is there a possibility to increase the network speed? (At least the same speed as with Raspbian or OSMC should be possible i think?)


Grettings,
H.

I tried to reproduce your issue but having no issue here.

Getting always read/write speed of 11.2MB/s +/- 0.3MB/s, but I do not have Windows for testing, samba share was mounted by my Cubieboard2 (1GHz dualcore ARM v7 powered) home server (100MBit/s network). Tested ext4 and ntfs fs, ntfs is a bit slower than ext4, but only marginal.

So my question, how do you mount your external disk?

Make sure that you do not use sync and use big_writes option when mounting external drive.

If big_writes is omitted, I get write speed of 7 MB/s on ntfs, so this option is really necessary

Hello Nachteile,

i didn´t mount it by myself, i put it on the USB port an it works. (In the Xbian setting automount is activated (by default) and my only change was to anable "shares schuld be world writeable")

But it semme you are on the right way,
after i disable the "mount with sync option" at "XBian - XBMC - USB - plug&play", the writespeed goes up to 8-9MB/s (before 4-5MB/s) and is now on the same level as readspeed
But i can´t find any option to enable big_writes, can you tell me how i can enable this option?

Grettings,

H.

Ok, I see. You are using functionality of package xbian-package-usbmount

To configure mount options, please look into file /etc/usbmount/usbmount.conf

(variable MOUNTOPTIONS and FS_MOUNTOPTIONS)

In case of ntfs mounts, big_writes option is already enabled but sync option is usually set by default

Thank you for your quick response

i´ve checked the file /etc/usbmount/usbmount.conf, and as you say big_writes option is enabled for ntfs.
So this does not seem to be my problem with the lower networkspeed, i now got 8-9MB/s for read/write.
Strage that you have the same speed with Xbian as I get with other distributions (11-12MB/s).
Do you still have any idea why it could be? (my Xbian is freshly installed and no other things installed or added in Kodi).

---

I have now tested the network speed with the tool LAN Speed Test:(500MB)

but the transmission values change only minimal.
Only for smale files the speed will increases for reading:(10MB)

(27th Oct, 2016 01:11 AM)Harald654 Wrote: [ -> ]Do you still have any idea why it could be? (my Xbian is freshly installed and no other things installed or added in Kodi).

Unfortunately not. Yesterday I looked for Samba tweaks, but all tweaks I found are enabled per default or already set in smb.conf

Now I was just reconfiguring my notebook a bit (connected to GBit switch instead of WLAN) and started my pretty old W7/32bit in VMware workstation.

Here is my result of reading from XBian's external disk over network:



This was copy from ntfs fs

Writing is a bit slower, getting 11,1MB/sec average

different SD card maybe?

@rikardo1979

Nope, only read/write to external 4TB WD disk, not SD card

@Harald654
Did you already test raw read/write speed from/to external disk?

(27th Oct, 2016 03:32 AM)Nachteule Wrote: [ -> ]@rikardo1979

Nope, only read/write to external 4TB WD disk, not SD card

I meant system (XBian) is on different SD card different HW gives different results?

Ok, you're right.

But having absolutely no idea what culprit could be

me too I just guessing as usual

i also test it with my old laptop with Win7, but still the same speed.

Heres the result of the raw test: (my HDD is a little bit faster than yours )

@rikardo1979:
I installed quickly Xbina on the SD card wich i used for the test with OSMC, but still get the same speed of 8-9MB/s.

If anybody read this theard with an RPI2, can you plese test your SMB speed and give a feedback
(so we know the problem is only with me)

Quote:Heres the result of the raw test: (my HDD is a little bit faster than yours )

I can live with that (this is my oldest in use hd (Samsung 750GB) I plugged into an older WD MyBook box, just for testing)

You have funny disk partition on your disk. Never seen before

i cant follow you, what did you mean? "media/MyBook"?

But i have good (and strange) news!
I take a look at the samba settings of OSMC:

and simply import/change a few things in xbian (without knowing what I do)
original:
my new version:

result:

---

edit: i found a link that may be explained