[Pcsclite-muscle] High CPU load with pcscd and Kerkey security Module

Ludovic Rousseau ludovic.rousseau at gmail.com
Thu Nov 24 15:48:21 UTC 2016


2016-11-22 11:06 GMT+01:00 Ludovic Rousseau <ludovic.rousseau at gmail.com>:
> 2016-11-22 9:40 GMT+01:00 Oliver Graute <oliver.graute at gmail.com>:
>> Results sorted by total execution time
>> total time: 597.958052 sec
>> 1.260111 sec ( 14 calls)  0.21% SCardTransmit
>> 0.437992 sec ( 37 calls)  0.07% SCardStatus
>> 0.058914 sec (  3 calls)  0.01% SCardEndTransaction
>> 0.031738 sec (  4 calls)  0.01% SCardGetStatusChange
>> 0.016146 sec (  1 calls)  0.00% SCardEstablishContext
>> 0.015728 sec (  2 calls)  0.00% SCardConnect
>> 0.008783 sec (  3 calls)  0.00% SCardBeginTransaction
>> 0.004295 sec (  3 calls)  0.00% SCardListReaders
>> 0.000688 sec (  1 calls)  0.00% SCardDisconnect
>>
>> Results sorted by total execution time
>> total time: 597.958052 sec
>> 42.015016 sec (308 calls)  7.03% SCardTransmit
>> 9.974089 sec (1687 calls)  1.67% SCardStatus
>> 3.144835 sec (278 calls)  0.53% SCardEndTransaction
>> 2.814056 sec (123 calls)  0.47% SCardGetStatusChange
>> 1.173591 sec (278 calls)  0.20% SCardBeginTransaction
>> 0.226849 sec (  4 calls)  0.04% SCardConnect
>> 0.047858 sec (  2 calls)  0.01% SCardEstablishContext
>> 0.032616 sec (  6 calls)  0.01% SCardListReaders
>> 0.019015 sec (  4 calls)  0.00% SCardDisconnect
>> 0.004632 sec (  2 calls)  0.00% SCardReleaseContext
>>
>> I don't now why I got two results sets here.
>
> Because your program used 2 threads.
> Each thread generates its own results. I will try to impove the output.

Fixed in https://github.com/LudovicRousseau/PCSC/commit/b703805510b814b78967c7e84ad3a477cb8fc10e

Thanks for the remark.

Bye

-- 
 Dr. Ludovic Rousseau



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