Mike Christie wrote:
> Mike Christie wrote:
>> Erez Zilber wrote:
>>> Hi,
>>>
>>> I'm running some performance tests with open-iscsi (iops & throughput).
>>> With open-iscsi over TCP, I see very low numbers:
>>>
>>>     * iops: READ - 20000, WRITE - 13000
>>>     * throughput: READ - 185, WRITE - 185
>>>
>>> In open-iscsi.org, I see much higher numbers. Did anyone measure
>>> open-iscsi performance lately? Can you share your numbers? Which
>> Yeah, I have been running tests for a while. What test program are you 
>> using, what io sizes, and what io scheduler and kernel and what nic module?
>>
> 
> Oh yeah what kernel are you running? I ported linux-iscsi to a recent 
> kernel so I could test if there are a problem with open-iscsi or 
> something in the network, block or scsi layer (this is why I tried 
> switching open-iscsi to use a recv thread like how linux-iscsi does 
> instead of running from the network softirq).
> 
> I will try to tar up my linux-iscsi code, so you can try it out on your 
> kernel.
> 

Oh ignore that. I am not seeing any write problems (have to switch to 
noop io sched to get things going sometimes though). I just see slow 
reads, so we are not hitting the same problem since both your numbers 
look to be the same.

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