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by Kirby Zhou < kirbyzhou \x40 sohu-rd.com >
using sched_yield to schedule other threads, so multiple iperf can run simultaneously
using usleep with delay-loop between 2 package is long than 1.25ms.
Upstream-Status: Inappropriate [not author]
--- iperf-2.0.4-4/compat/delay.cpp 2009-07-06 12:02:24.166276642 +0200
+++ iperf-2.0.4/compat/delay.cpp 2009-07-06 12:01:33.858384005 +0200
@@ -69,6 +69,13 @@ void delay_loop( unsigned long usec ) {
Timestamp now;
while ( now.before( end ) ) {
+ long diff = end.subUsec(now);
+ if (diff >= 1250) {
+ usleep(0);
+ }
+ if (diff >= 2) {
+ sched_yield();
+ }
now.setnow();
}
}
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