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samples/bpf: Add quiet option to xdpsock

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Add a quiet option (-Q) that disables the statistics print outs of
xdpsock. This is good to have when measuring 0% loss rate performance
as it will be quite terrible if the application uses printfs.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/1599726666-8431-4-git-send-email-magnus.karlsson@gmail.com
This commit is contained in:
Magnus Karlsson 2020-09-10 10:31:06 +02:00 committed by Alexei Starovoitov
parent 5a2a0dd88f
commit 74e00676d7
1 changed files with 14 additions and 5 deletions
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19
samples/bpf/xdpsock_user.c
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@ -78,6 +78,7 @@ static int opt_pkt_count;
static u16 opt_pkt_size = MIN_PKT_SIZE;
static u32 opt_pkt_fill_pattern = 0x12345678;
static bool opt_extra_stats;
static bool opt_quiet;
static int opt_poll;
static int opt_interval = 1;
static u32 opt_xdp_bind_flags = XDP_USE_NEED_WAKEUP;
@ -718,6 +719,7 @@ static struct option long_options[] = {
{"tx-pkt-size", required_argument, 0, 's'},
{"tx-pkt-pattern", required_argument, 0, 'P'},
{"extra-stats", no_argument, 0, 'x'},
{"quiet", no_argument, 0, 'Q'},
{0, 0, 0, 0}
};
@ -753,6 +755,7 @@ static void usage(const char *prog)
" Min size: %d, Max size %d.\n"
" -P, --tx-pkt-pattern=nPacket fill pattern. Default: 0x%x\n"
" -x, --extra-stats Display extra statistics.\n"
" -Q, --quiet Do not display any stats.\n"
"\n";
fprintf(stderr, str, prog, XSK_UMEM__DEFAULT_FRAME_SIZE,
opt_batch_size, MIN_PKT_SIZE, MIN_PKT_SIZE,
@ -768,7 +771,7 @@ static void parse_command_line(int argc, char **argv)
opterr = 0;
for (;;) {
c = getopt_long(argc, argv, "Frtli:q:pSNn:czf:muMd:b:C:s:P:x",
c = getopt_long(argc, argv, "Frtli:q:pSNn:czf:muMd:b:C:s:P:xQ",
long_options, &option_index);
if (c == -1)
break;
@ -852,6 +855,9 @@ static void parse_command_line(int argc, char **argv)
case 'x':
opt_extra_stats = 1;
break;
case 'Q':
opt_quiet = 1;
break;
default:
usage(basename(argv[0]));
}
@ -1286,9 +1292,11 @@ int main(int argc, char **argv)
setlocale(LC_ALL, "");
ret = pthread_create(&pt, NULL, poller, NULL);
if (ret)
exit_with_error(ret);
if (!opt_quiet) {
ret = pthread_create(&pt, NULL, poller, NULL);
if (ret)
exit_with_error(ret);
}
prev_time = get_nsecs();
start_time = prev_time;
@ -1302,7 +1310,8 @@ int main(int argc, char **argv)
benchmark_done = true;
pthread_join(pt, NULL);
if (!opt_quiet)
pthread_join(pt, NULL);
xdpsock_cleanup();