[erlang-questions] Improve performance of IO bounded server written in Erlang via having pollset for each scheduler and bind port to scheduler together with process

Zabrane Mickael <>
Thu Jul 12 08:19:16 CEST 2012


Hi Wei,

We already surpassed the 100krps on an 8-cores machine with our HTTP server (~150K rps).

My question was: could we reach the 100K rps on a 4-cores machine with ehttpd ?
That will be awesome.

Regards,
Zabrane

On Jul 12, 2012, at 3:48 AM, Wei Cao wrote:

> we can reach 135 rps on a 16 core machine, it's quite reasonable to
> have 70k rps on a 8 core machine.
> 
> lscpu
> 
> Architecture:          x86_64
> CPU op-mode(s):        32-bit, 64-bit
> Byte Order:            Little Endian
> CPU(s):                16
> On-line CPU(s) list:   0-15
> Thread(s) per core:    2
> Core(s) per socket:    4
> CPU socket(s):         2
> NUMA node(s):          2
> Vendor ID:             GenuineIntel
> CPU family:            6
> Model:                 44
> Stepping:              2
> CPU MHz:               2134.000
> BogoMIPS:              4266.58
> Virtualization:        VT-x
> L1d cache:             32K
> L1i cache:             32K
> L2 cache:              256K
> L3 cache:              12288K
> NUMA node0 CPU(s):     0-3,8-11
> NUMA node1 CPU(s):     4-7,12-15
> 
> 
> 
> 2012/7/12 Zabrane Mickael <>:
>> Hi Wei,
>> 
>> On Jul 11, 2012, at 2:35 PM, Wei Cao wrote:
>> 
>> sure, the steps is correct
>> 
>> 
>> I re-installed everything from scratch with your second patch and tested
>> your ehttpd web server example.
>> 
>> before: ~55K rps
>> after: ~70K rps
>> 
>> but was unable to reach the 100K rps.
>> 
>> Anyone courageous enough to help us reach the 100K rps?
>> 
>> Regards,
>> Zabrane
>> 
> 
> 
> 
> -- 
> 
> Best,
> 
> Wei Cao



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