[Samba] Throughput Constraints
Henrik Zagerholm
henke at mac.se
Mon Jan 30 22:37:41 GMT 2006
Look at sendfile support.
It can drastically improve throughput.
Cheers,
Henrik
30 jan 2006 kl. 21:13 skrev Doug VanLeuven:
> Baron Young wrote:
>
>> I hope I'm in the right place for this question. I am in the
>> process of creating a large scale production fileserver
>> architecture for the purpose of serving very large files (~4.5GB)
>> to a small number of clients (~200). My assumptions to this point
>> have been that my throughput would be constrained by hardware and
>> not software, but I would like some validation of this thinking.
>> I am hoping to achieve throughput rates of ~200MB/s using whatever
>> hardware needed to achieve this (FC on the disk side, possible
>> infiniband or multiple 1Gb ethernet links for network side). CPU
>> would be 2-4 3+ Ghz, 8-16GB mem (more if needed). I've "heard"
>> that my throughput using Samba could be limited to more like 80MB/
>> s but I'm not sure why this would be the case.
>> Any experiences using Samba for throughput rates this high
>> would be much appreciated.
>>
> When I ran tests, I was using standard 32 bit PCI, two machines
> connected by crossover cable, one intel server card and one
> workstation card.
> My numbers were more like 180 MBytes download.
> Uploads were 50-80 MBytes. This wasn't a samba issue, and was
> reproducable between two 2000 windows machines. Never figured why.
> Jumbo frames improved things, but can't be used in a mixed local
> environment.
>
> Regards, Doug
>
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