In the end we have a black box with Indy that isn't going to be opened.. and from the sound of it, a dated method of manually checking for i/o (in this case likely with select() and a zero timeout..). Calling that and sleep() over and over millions of times..
I'm sorry to the OP if I'm assuming a lot but my guess is the code is a bit old and could use some refactoring to do away with the old Pascal "active loop." -- Alexander Grotewohl https://dcclost.com ________________________________ From: fpc-pascal <fpc-pascal-boun...@lists.freepascal.org> on behalf of Bernd K. via fpc-pascal <fpc-pascal@lists.freepascal.org> Sent: Saturday, October 23, 2021 6:46:21 AM To: fpc-pascal@lists.freepascal.org <fpc-pascal@lists.freepascal.org> Cc: Bernd K. <prof7...@gmail.com> Subject: Re: [fpc-pascal] My Linux service application consumes 10% CPU when idling - why? Am 07.10.21 um 19:41 schrieb Bo Berglund via fpc-pascal: > The question is: how to find what is still using CPU? Have a look at the tool sysprof. This is a statistical sampling profiler that can show you a call tree with percentages of CPU consumption. Thee are also other sampling profilers around (oprofile, perf/hotspot, google-gperftools, etc..) that all work by the same principle, you could try which one suits you best. They should all be able to tell you where exactly it spends how much of its CPU time. You don't need to instrument the code, just compile it with dwarf debug info contained in the executable (not as external debug file), maybe also reduce the optimization level if, and it should be able to show you the call tree along with time consumption of each function. Bernd _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
_______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
