Author Topic: [SOLVE] Any Suggest  (Read 1648 times)

aspangilinan

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[SOLVE] Re: HARDWARE PROBLEM / Any Suggest
« Reply #15 on: November 21, 2011, 01:13:35 am »
the current performance is not my expectation because im expecting more than that. because my hardware is big enough but still when i copying 245mb files it takes 15sec. my files dll extension files, do you think there's any conflict to samba.

i was thinking as of now i want to replace the NIC card.

christian,  do you have any advise on this matter.
and
kindly see the link for your reference.

http://pos45.dyndns.org/tools/zentyal/users.jpg
http://pos45.dyndns.org/tools/zentyal/current_module.jpg
http://pos45.dyndns.org/tools/zentyal/filesharing.jpg

Thanks
Arnel
« Last Edit: November 21, 2011, 11:05:00 am by aspangilinan »

half_life

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Re: Any Suggest
« Reply #16 on: November 21, 2011, 06:02:32 am »
Maybe I missed it but you haven't mentioned what your network switch speeds are.  Are they 10/100 or 1000 mb ports?  Your example file download time would be normal in 100mb network. 

christian

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Re: Any Suggest
« Reply #17 on: November 21, 2011, 07:49:54 am »
Exactly, the whole stack has to be reviewed... but only once some facts have been clarified.
I mean it's a bit weird to start topic with "any suggest" title and list of hardware when problem is in fact "samba performance", don't you think so?  ::)

Have a look here:
http://wiki.samba.org/index.php/Linux_Performance
and there:
http://blogs.msdn.com/b/openspecification/archive/2009/04/10/smb-maximum-transmit-buffer-size-and-performance-tuning.aspx
http://www.hob-techtalk.com/2009/03/09/nfs-vs-cifs-aka-smb

What is your target?  ;)

robb

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Re: Any Suggest
« Reply #18 on: November 21, 2011, 09:36:28 am »
On a mathematical approach:

15 seconds for a file of 245MB means: 16.3MB/s
This equals 130.6 Mbit/s

This is already more than a 100Mb NIC can transfer. I agree for a Gb network this could be improved but it can be any part of the chain between the sending device and the receiving device that acts as the bottleneck of your network read/write performance. If you want to know what is your bottleneck, you have to identify every single item in your network involving network performance and test it.

christian

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Re: Any Suggest
« Reply #19 on: November 21, 2011, 10:20:30 am »
Sure but his file is 245mb... does it mean 245Mb or 245MB ::)
You're right with your suggestion that is to look at the whole stack to identify bottleneck (because there is obviously one... somewhere  ;D) but this kind of investigation is not obvious.

aspangilinan

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[SOLVE] Re: HARDWARE PROBLEM / Any Suggest
« Reply #20 on: November 21, 2011, 11:09:44 am »
when i replace the NIC, now i feel getting faster. my old nic hardware 1000/mbps and my switch device is 10/100mbps. i replace the nic hardward  10/100mbps to matched my network existing. and that's great to me.

for now im not stress for this issue.

anyway thanks to all comment and suggestion.

Arnel

stuartiannaylor

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Re: [SOLVE] Any Suggest
« Reply #21 on: December 28, 2011, 11:41:11 am »
aspangilinan you do have a great hardware setup. More than enough apart from the fact that users create simultaneous disk access.You have a single "Desktop" hardrive and you are sharing that with 20 users. Is this using roaming profiles and various other services?