[SOLVED] Slow read speeds from a DroboFS mounted in fstab via cifs

I've decided to move all my media over to my drobofs which I have and I've mounted the share on the drobo in fstab this way:
//mydrobofs/Media /media/drobofs cifs iocharset=utf8,uid=af,gid=users,guest,dir_mode=0775 0 0
The share is mounted fine at boot but my issue is now the read speeds are very slow. opening a video file with vlc takes 30 seconds or more before it starts playing. Before this was accessing the share on my drobofs via the network tab (samba shares) in Dolphin (using KDE4) and here the video files played immediately in vlc (no delay). The reason why I want to mount the share via cifs and fstab is to move music collection over to the my drobofs and since I'm using Amarok for managing my collection this is the only way to make Amarok see my Music collection on the Drobofs.
Why am I getting so slow read speeds with cifs?
Last edited by fettouhi (2012-05-07 05:54:00)

I did some more testing and seems like the problem has something to do with how many video files there are in the directory. I have some directories with several 100 video files and here I get this long delay but if I play a file that is in a directory by itself or only a few other video files are there, then the video starts immediately (almost). Is there a way to turn off this behaviour in vlc? Is it generating a playlist or what?

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agpgart 27352 1 nvidia
cpufreq_ondemand 6796 1
ipt_LOG 6272 1
xt_tcpudp 3328 1
xt_state 2432 1
iptable_filter 2688 1
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iptable_nat 6404 0
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analog 10272 0
ppdev 7556 0
lp 9220 0
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ppp_generic 23572 0
psmouse 34952 0
serio_raw 5636 0
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parport 31176 3 ppdev,lp,parport_pc
rtc_sysfs 3840 0
rtc_proc 3844 0
rtc_dev 6664 0
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pcspkr 2944 0
usbhid 36128 0
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ff_memless 5256 1 usbhid
sg 26524 0
i2c_nforce2 5120 0
i2c_core 17536 2 nvidia,i2c_nforce2
tsdev 6464 0
evdev 8192 0
thermal 11528 0
fan 3972 0
button 6288 0
battery 8452 0
ac 4100 0
snd_intel8x0 28700 2
snd_ac97_codec 95780 1 snd_intel8x0
snd_mpu401 6760 0
snd_mpu401_uart 7040 1 snd_mpu401
snd_rawmidi 19104 1 snd_mpu401_uart
snd_seq_oss 29056 0
snd_seq_midi_event 6528 1 snd_seq_oss
snd_seq 46544 4 snd_seq_oss,snd_seq_midi_event
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1) Yes, being slow either on reads or on writes is a quite common situation for storage spaces. See references (with some of the solutions I hope):
http://social.technet.microsoft.com/Forums/en-US/winserverfiles/thread/a58f8fce-de45-4032-a3ef-f825ee39b96e/
http://blogs.technet.com/b/askpfeplat/archive/2012/10/10/windows-server-2012-storage-spaces-is-it-for-you-could-be.aspx
http://social.technet.microsoft.com/Forums/en-US/winserver8gen/thread/64aff15f-2e34-40c6-a873-2e0da5a355d2/
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http://helgeklein.com/blog/2012/03/windows-8-storage-spaces-bugs-and-design-flaws/
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http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/5d4f68b7-5fc4-4a3c-8232-a2a68bf3e6d2
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[SOLVED] Slow read speeds from a DroboFS mounted in fstab via cifs

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