Time-profile of the DLG event-pipe / sr_waitEvt()

From: Emir Memic

I couldn't resist myself and I made dx_stopch example as you suggested. The results confirm your findings.

Here are average results:
- 10000 events (one channel) need 2.850s
- 40000 events (4 channels) need 19.953s
- 340000 events (34 channels) need 584.980s

which means that performance is downgraded form 3500 events per second to 2000 events per second and, at last, to 580 events per second.

At 3rd set of tests (340000 events) elapsed time was 9 min 45 sec and processor time was 3 min 47 seconds.

Maybe better results can be achieved with less value for poll granularity.

Emir

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Received on Thu Nov 06 04:42:50 2003