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nexedi
nemu3
Commits
dcf74a87
Commit
dcf74a87
authored
Aug 12, 2010
by
Martín Ferrari
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Plain Diff
Take into account header sizes; allow 0-byte udp packets
parent
4dfa1d39
Changes
1
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Showing
1 changed file
with
8 additions
and
2 deletions
+8
-2
benchmarks/udp-perf.c
benchmarks/udp-perf.c
+8
-2
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benchmarks/udp-perf.c
View file @
dcf74a87
...
...
@@ -16,6 +16,7 @@
#include <errno.h>
#include <fcntl.h>
#define HDR_SIZE (14 + 20 + 8)
/* eth + ip + udp headers */
static
uint64_t
current_time
(
void
);
static
void
fatal
(
const
char
*
func
,
const
char
*
detailed
)
{
...
...
@@ -42,6 +43,10 @@ static void run_client(const char *to_ip, unsigned to_port, unsigned pkt_size) {
struct
sockaddr_in
addr
,
to
;
void
*
buffer
;
if
(
pkt_size
<
HDR_SIZE
)
fatal
(
NULL
,
"Cannot send packets that small."
);
pkt_size
-=
HDR_SIZE
;
buffer
=
malloc
(
pkt_size
);
if
(
!
buffer
)
fatal
(
"malloc"
,
NULL
);
...
...
@@ -147,7 +152,7 @@ static void run_server(int port, uint64_t max_time, uint64_t max_pkts,
int
fd
,
cfd
,
serverfd
,
status
;
uint64_t
now
,
last_ts
,
last_seq
,
preceived
,
breceived
,
errors
;
uint64_t
start
,
tot_delay
,
max_delay
,
min_delay
,
last_delay
;
ssize_t
pkt_size
=
0
,
buffer_sz
=
1
<<
17
;
/* should be enough */
ssize_t
pkt_size
=
-
1
,
buffer_sz
=
1
<<
17
;
/* should be enough */
void
*
buffer
;
uint64_t
magic
=
0xdeadbeef
;
...
...
@@ -204,7 +209,7 @@ static void run_server(int port, uint64_t max_time, uint64_t max_pkts,
if
(
received
>=
8
)
seq
=
((
uint64_t
*
)
buffer
)[
1
];
if
(
!
pkt_size
)
{
if
(
pkt_size
==
-
1
)
{
/* init */
pkt_size
=
received
;
last_ts
=
ts
;
...
...
@@ -218,6 +223,7 @@ static void run_server(int port, uint64_t max_time, uint64_t max_pkts,
}
else
{
preceived
++
;
breceived
+=
received
;
breceived
+=
HDR_SIZE
;
if
(
ts
)
{
last_delay
=
now
-
ts
;
tot_delay
+=
last_delay
;
...
...
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