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by Olivier
02:29
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perf-client.main()   A

↳ Parent: perf-client

Complexity

Conditions 3

Size

Total Lines 21
Code Lines 18

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 3
eloc 18
nop 0
dl 0
loc 21
rs 9.5
c 0
b 0
f 0
1 
import time
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import uvloop
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import asyncio
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import sys
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import logging
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import cProfile
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sys.path.insert(0, "..")

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from asyncua import Client, ua

            


            
                                                                                                            
                            
            
                                    
            
            

                
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logging.basicConfig(level=logging.INFO)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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_logger = logging.getLogger('asyncua')

            


            
                                                                                                            
                            
            
                                    
            
            

                
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async def main():

            


            
                                                                        
                            
            
                                    
            
            

                
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    url = 'opc.tcp://localhost:4840/freeopcua/server/'

            


            
                                                                        
                            
            
                                    
            
            

                
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    async with Client(url=url) as client:

            


            
                                                                        
                            
            
                                    
            
            

                
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        uri = 'http://examples.freeopcua.github.io'

            


            
                                                                        
                            
            
                                    
            
            

                
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        idx = await client.get_namespace_index(uri)

            


            
                                                                        
                            
            
                                    
            
            

                
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        var = await client.nodes.root.get_child(["0:Objects", f"{idx}:MyObject", f"{idx}:MyVariable"])

            


            
                                                                        
                            
            
                                    
            
            

                
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        nb = 4000

            


            
                                                                        
                            
            
                                    
            
            

                
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        start = time.time()

            


            
                                                                        
                            
            
                                    
            
            

                
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        attr = ua.WriteValue()

            


            
                                                                        
                            
            
                                    
            
            

                
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        attr.NodeId = var.nodeid

            


            
                                                                        
                            
            
                                    
            
            

                
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        attr.AttributeId = ua.AttributeIds.Value

            


            
                                                                        
                            
            
                                    
            
            

                
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        attr.Value = ua.DataValue(ua.Variant(1.0, ua.VariantType.Float))

            


            
                                                                        
                            
            
                                    
            
            

                
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        params = ua.WriteParameters()

            


            
                                                                        
                            
            
                                    
            
            

                
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        params.NodesToWrite = [attr]

            


            
                                                                        
                            
            
                                    
            
            

                
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        for i in range(nb):

            


            
                                                                        
                            
            
                                    
            
            

                
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            params.NodesToWrite[0].Value.Value.Value = i

            


            
                                                                        
                            
            
                                    
            
            

                
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            result = await client.uaclient.write(params)

            


            
                                                                        
                            
            
                                    
            
            

                
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            #result[0].check()

            


            
                                                                        
                            
            
                                    
            
            

                
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            #await var.set_value(i)

            


            
                                                                        
                            
            
                                    
            
            

                
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    print("\n Write frequency: \n", nb / (time.time() - start))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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if __name__ == '__main__':

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    #uvloop.install()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    asyncio.run(main())

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    #cProfile.run('asyncio.run(mymain(), debug=True)', filename="perf.cprof")

            


            
                                                        
            
                                    
            
            

                
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