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[Commit-gnuradio] r8958 - usrp2/branches/features/host-ng/host-ng/apps
From: |
jcorgan |
Subject: |
[Commit-gnuradio] r8958 - usrp2/branches/features/host-ng/host-ng/apps |
Date: |
Sun, 20 Jul 2008 15:55:40 -0600 (MDT) |
Author: jcorgan
Date: 2008-07-20 15:55:40 -0600 (Sun, 20 Jul 2008)
New Revision: 8958
Modified:
usrp2/branches/features/host-ng/host-ng/apps/test_usrp2.cc
Log:
Tweak on testing USRP2 host code rx throughput.
Modified: usrp2/branches/features/host-ng/host-ng/apps/test_usrp2.cc
===================================================================
--- usrp2/branches/features/host-ng/host-ng/apps/test_usrp2.cc 2008-07-20
21:21:15 UTC (rev 8957)
+++ usrp2/branches/features/host-ng/host-ng/apps/test_usrp2.cc 2008-07-20
21:55:40 UTC (rev 8958)
@@ -141,37 +141,49 @@
size_t bufsize = 100e6;
unsigned char *buf = (unsigned char *)malloc(bufsize);
- usrp2::copy_handler h(buf, bufsize);
- printf("Receiving data into buffer of length %li bytes.\n\n", bufsize);
+ printf("Receiving data ten times into buffer of length %li bytes.\n\n",
bufsize);
struct timeval start, end;
gettimeofday(&start, 0);
+ printf("Each '.' is 100 packets:\n");
- printf("Each '.' is 100 packets:\n");
- bool ok;
- unsigned int n = 0;
+ int count = 0;
+ unsigned long bytes = 0;
+ unsigned long times = 0;
+
do {
- ok = u2->rx_samples(0, &h);
- if (h.times() > n) {
- printf("."); fflush(stdout);
- n = n+100;
+ usrp2::copy_handler h(buf, bufsize);
+ bool ok;
+ unsigned int n = 0;
+ do {
+ ok = u2->rx_samples(0, &h);
+ if (h.times() > n) {
+ printf("."); fflush(stdout);
+ n = n+100;
+ }
}
+ while (ok && !h.full());
+ if (!ok)
+ break;
+
+ bytes += h.bytes();
+ times += h.times();
}
- while (ok && !h.full());
+ while (++count < 10);
gettimeofday(&end, 0);
long n_usecs = end.tv_usec-start.tv_usec;
long n_secs = end.tv_sec-start.tv_sec;
double elapsed = (double)n_secs + (double)n_usecs*1e-6;
- double mbs = h.bytes()/elapsed/1e6;
- double pps = h.times()/elapsed;
+ double mbs = bytes/elapsed/1e6;
+ double pps = times/elapsed;
u2->stop_rx_streaming();
- printf("\nCopy handler called %li times.\n", h.times());
- printf("Copy handler called with %li bytes.\n\n", h.bytes());
+ printf("\nCopy handler called %li times.\n", times);
+ printf("Copy handler called with %li bytes.\n\n", bytes);
printf("Elapsed time was %5.3f seconds.\n", elapsed);
printf("Packet rate was %1.0f pkts/sec.\n", pps);
printf("Approximate throughput was %5.2f MB/sec.\n", mbs);
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