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Improve benchmark

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Sample on i3 2GHz:

Run [transop_null] for 3s (512 bytes):   	    11203585 packets	  3734.5 Kpps	  1912.1 MB/s
Run [transop_twofish] for 3s (512 bytes):   	       60705 packets	    20.2 Kpps	    10.4 MB/s
Run [transop_aes] for 3s (512 bytes):   	      467937 packets	   156.0 Kpps	    79.9 MB/s
This commit is contained in:
emanuele-f 2019-04-11 00:46:34 +02:00
parent d4205d36fd
commit e3951631b9
1 changed files with 23 additions and 29 deletions
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52
benchmark.c
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@ -103,50 +103,44 @@ static void run_transop_benchmark(const char *op_name, n2n_trans_op_t *op_fn, ui
n2n_common_t cmn;
n2n_PACKET_t pkt;
n2n_mac_t mac_buf;
const int target_sec = 3;
struct timeval t1;
struct timeval t2;
size_t i;
size_t n;
size_t idx;
size_t rem;
ssize_t nw;
ssize_t tdiff;
ssize_t target_usec = target_sec * 1e6;
ssize_t tdiff = 0; // microseconds
size_t num_packets = 0;
n=10000;
printf("Run [%s] for %us (%u bytes): ", op_name, target_sec, (unsigned int)sizeof(PKT_CONTENT));
fflush(stdout);
memset(mac_buf, 0, sizeof(mac_buf));
gettimeofday( &t1, NULL );
for(i=0; i<n; ++i)
{
nw = do_encode_packet( pktbuf, N2N_PKT_BUF_SIZE, c);
nw += op_fn->fwd( op_fn,
pktbuf+nw, N2N_PKT_BUF_SIZE-nw,
PKT_CONTENT, sizeof(PKT_CONTENT), mac_buf);
while(tdiff < target_usec) {
nw = do_encode_packet( pktbuf, N2N_PKT_BUF_SIZE, c);
idx=0;
rem=nw;
nw += op_fn->fwd(op_fn,
pktbuf+nw, N2N_PKT_BUF_SIZE-nw,
PKT_CONTENT, sizeof(PKT_CONTENT), mac_buf);
decode_common( &cmn, pktbuf, &rem, &idx);
decode_PACKET( &pkt, &cmn, pktbuf, &rem, &idx );
idx=0;
rem=nw;
if ( 0 == (i%(n/10)) )
{
fprintf(stderr,".");
}
}
gettimeofday( &t2, NULL );
decode_common( &cmn, pktbuf, &rem, &idx);
decode_PACKET( &pkt, &cmn, pktbuf, &rem, &idx );
tdiff = ((t2.tv_sec - t1.tv_sec) * 1000000) + (t2.tv_usec - t1.tv_usec);
gettimeofday( &t2, NULL );
tdiff = ((t2.tv_sec - t1.tv_sec) * 1000000) + (t2.tv_usec - t1.tv_usec);
num_packets++;
}
fprintf( stderr, "\n[%s] %u times: (%u -> %u nsec each) %u.%06u -> %u.%06u.\n",
op_name,
(unsigned int)i, (unsigned int)tdiff,
(unsigned int)((tdiff *1000)/i),
(uint32_t)t1.tv_sec, (uint32_t)t1.tv_usec,
(uint32_t)t2.tv_sec, (uint32_t)t2.tv_usec );
float mpps = num_packets / (tdiff / 1e6) / 1e6;
printf("\t%12u packets\t%8.1f Kpps\t%8.1f MB/s\n",
(unsigned int)num_packets, mpps * 1e3, mpps * sizeof(PKT_CONTENT));
}
static ssize_t do_encode_packet( uint8_t * pktbuf, size_t bufsize, const n2n_community_t c )