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get rid of warning. 

2004/09/28 12:01:02-07:00 osdl.net!shemminger
Update to rtstat.c from Robert Olsson

(Logical change 1.89)
This commit is contained in:
osdl.net!shemminger 2004-09-28 19:16:48 +00:00
parent cb4d97a9a8
commit 63fe5f043e
1 changed files with 127 additions and 56 deletions
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183
misc/rtstat.c
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@ -10,6 +10,7 @@
* *
* Additional credits: * Additional credits:
* Martin Josefsson <gandalf@wlug.westbo.se> 010828 bug fix * Martin Josefsson <gandalf@wlug.westbo.se> 010828 bug fix
* 030420 cleanup
* *
*/ */
@ -18,7 +19,12 @@
#include <stdlib.h> #include <stdlib.h>
#include <getopt.h> #include <getopt.h>
#define VERSION "0.33 010829" #define VERSION "0.42 030623"
#define FMT_LEN1 11
#define FMT_LEN2 15
#define FMT_LEN3 17
extern char *optarg; extern char *optarg;
extern int optind, opterr, optopt; extern int optind, opterr, optopt;
@ -26,14 +32,21 @@ extern int optind, opterr, optopt;
FILE *fp; FILE *fp;
unsigned rt_size, in_hit[2], in_slow_tot[2], in_slow_mc[2], unsigned rt_size, in_hit[2], in_slow_tot[2], in_slow_mc[2],
in_no_rt[2], in_brd[2], in_martian_dst[2], in_martian_src[2], in_no_rt[2], in_brd[2], in_martian_dst[2], in_martian_src[2],
out_hit[2], out_slow_tot[2], out_slow_mc[2]; out_hit[2], out_slow_tot[2], out_slow_mc[2], gc_total[2],
gc_ignored[2], gc_goal_miss[2], gc_dst_overflow[2],
in_hlist_search[2], out_hlist_search[2];
int llen;
/* Read (and summarize for SMP) the different stats vars. */ /* Read (and summarize for SMP) the different stats vars. */
void scan_line(int i) void scan_line(int i)
{ {
unsigned temp[10]; char buf[1024];
unsigned temp[16];
i %= 2;
in_hit[i] = 0; in_hit[i] = 0;
in_slow_tot[i] = 0; in_slow_tot[i] = 0;
@ -45,9 +58,19 @@ void scan_line(int i)
out_hit[i] = 0; out_hit[i] = 0;
out_slow_tot[i] = 0; out_slow_tot[i] = 0;
out_slow_mc[i] = 0; out_slow_mc[i] = 0;
gc_total[i] = 0;
gc_ignored[i] = 0;
gc_goal_miss[i] = 0;
gc_dst_overflow[i] = 0;
in_hlist_search[i] = 0;
out_hlist_search[i] = 0;
for(;;) {
fgets(buf, 1023, fp);
if( feof(fp) ) break;
llen = sscanf(buf, "%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x\n",
while(!feof(fp)) {
fscanf(fp, "%x %x %x %x %x %x %x %x %x %x %x\n",
&rt_size, &rt_size,
&temp[0], /* in_hit */ &temp[0], /* in_hit */
&temp[1], /* in_slow_tot */ &temp[1], /* in_slow_tot */
@ -58,7 +81,13 @@ void scan_line(int i)
&temp[6], /* in_martian_src */ &temp[6], /* in_martian_src */
&temp[7], /* out_hit */ &temp[7], /* out_hit */
&temp[8], /* out_slow_tot */ &temp[8], /* out_slow_tot */
&temp[9] /* out_slow_mc */ &temp[9], /* out_slow_mc */
&temp[10], /* gc_total */
&temp[11], /* gc_ignored */
&temp[12], /* gc_goal_miss */
&temp[13], /* gc_dst_overflow */
&temp[14], /* in_hlist_search */
&temp[15] /* out_hlist_search */
); );
in_hit[i] += temp[0]; in_hit[i] += temp[0];
@ -71,13 +100,29 @@ void scan_line(int i)
out_hit[i] += temp[7]; out_hit[i] += temp[7];
out_slow_tot[i] += temp[8]; out_slow_tot[i] += temp[8];
out_slow_mc[i] += temp[9]; out_slow_mc[i] += temp[9];
if(llen > FMT_LEN1 ) {
gc_total[i] += temp[10];
gc_ignored[i] += temp[11];
gc_goal_miss[i] += temp[12];
gc_dst_overflow[i] += temp[13];
}
if(llen > FMT_LEN2 ) {
in_hlist_search[i] += temp[14];
out_hlist_search[i] += temp[15];
}
} }
return;
} }
void print_hdr_line(void) void print_hdr_line(void)
{ {
printf(" size IN: hit tot mc no_rt bcast madst masrc OUT: hit tot mc\n"); printf(" size IN: hit tot mc no_rt bcast madst masrc OUT: hit tot mc");
if( llen > FMT_LEN1 )
printf(" GC: tot ignored goal_miss ovrf");
if( llen > FMT_LEN2 )
printf(" HASH: in_search out_search");
printf("\n");
} }
int usage(int exit_code) int usage(int exit_code)
@ -97,77 +142,103 @@ int usage(int exit_code)
fprintf(stderr, "bcast == IN: broadcast cache misses per sec\n"); fprintf(stderr, "bcast == IN: broadcast cache misses per sec\n");
fprintf(stderr, "madst == IN: dst martians per sec\n"); fprintf(stderr, "madst == IN: dst martians per sec\n");
fprintf(stderr, "masrc == IN: src martians per sec\n"); fprintf(stderr, "masrc == IN: src martians per sec\n");
fprintf(stderr, "hit == OUT: total number of cache hits per sec\n"); fprintf(stderr, "hit == OUT: total number of cache hits per sec\n");
fprintf(stderr, "tot == OUT: total number of cache misses per sec\n"); fprintf(stderr, "tot == OUT: total number of cache misses per sec\n");
fprintf(stderr, "mc == OUT: mulicast cache misses per sec\n"); fprintf(stderr, "mc == OUT: mulicast cache misses per sec\n");
fprintf(stderr, "tot == GC: total calls per sec\n");
fprintf(stderr, "ignored == GC: calls ignored per sec\n");
fprintf(stderr, "goal_miss == GC: goal miss per sec\n");
fprintf(stderr, "ovrflw == GC: dst_overflow per sec\n");
fprintf(stderr, "in_search == HASH: input hash list search per sec\n");
fprintf(stderr, "out_search == HASH: output hash list search per sec\n");
exit(exit_code); exit(exit_code);
} }
void print(int i, int interval)
{
int new = i % 2;
int old = !new;
printf("%5u %9u %7u %5u %5u %5u %5u %5u %9u %7u %6u",
rt_size,
(in_hit[new] - in_hit[old])/interval,
(in_slow_tot[new] - in_slow_tot[old])/interval,
(in_slow_mc[new] - in_slow_mc[old])/interval,
(in_no_rt[new] - in_no_rt[old])/interval,
(in_brd[new] - in_brd[old])/interval,
(in_martian_dst[new] - in_martian_dst[old])/interval,
(in_martian_src[new] - in_martian_src[old])/interval,
(out_hit[new] - out_hit[old])/interval,
(out_slow_tot[new] - out_slow_tot[old])/interval,
(out_slow_mc[new] - out_slow_mc[old])/interval);
if(llen > FMT_LEN1 )
printf(" %7u %7u %9u %4u",
(gc_total[new] - gc_total[old])/interval,
(gc_ignored[new] - gc_ignored[old])/interval,
(gc_goal_miss[new] - gc_goal_miss[old])/interval,
(gc_dst_overflow[new] - gc_dst_overflow[old])/interval);
if(llen > FMT_LEN2 )
printf(" %15u %10u",
(in_hlist_search[new] - in_hlist_search[old])/interval,
(out_hlist_search[new] - out_hlist_search[old])/interval);
printf("\n");
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
int c, i=1, interval=2, hdr=2; int c, i, interval = 2, hdr = 2;
while ((c=getopt(argc, argv,"h?s:i:")) != EOF) while ((c=getopt(argc, argv,"h?s:i:")) != EOF) {
switch (c) switch (c)
{ {
case '?':
case '?': case 'h':
case 'h': usage(0); usage(0);
break;
case 'i':
sscanf(optarg, "%u", &interval);
break;
case 'i': sscanf(optarg, "%u", &interval); case 's':
break; sscanf(optarg, "%u", &hdr);
break;
case 's': sscanf(optarg, "%u", &hdr); default:
break; usage(1);
default: usage(1);
} }
}
if(interval < 1 ) interval=1; if (interval < 1)
interval = 1;
if ((fp = fopen("/proc/net/rt_cache_stat", "r"))); fp = fopen("/proc/net/rt_cache_stat", "r");
else if (!fp) {
{
perror("fopen"); perror("fopen");
exit(-1); exit(-1);
} }
if(hdr > 0) print_hdr_line(); /* Read llen */
scan_line(0);
rewind(fp);
for(;1;i++) { if (hdr > 0)
print_hdr_line();
if(hdr > 1 && (! (i % 20))) print_hdr_line(); for(i = 0;;i++) {
if(hdr > 1 && i != 0 && (i % 20) == 0)
scan_line(0); print_hdr_line();
sleep(interval);
scan_line(i);
rewind(fp); rewind(fp);
scan_line(1); if (i != 0)
rewind(fp); print(i, interval);
sleep(interval);
printf("%5u %9u %7u %5u %5u %5u %5u %5u %9u %7u %6u\n",
rt_size,
(in_hit[1] - in_hit[0])/interval,
(in_slow_tot[1] - in_slow_tot[0])/interval,
(in_slow_mc[1] - in_slow_mc[0])/interval,
(in_no_rt[1] - in_no_rt[0])/interval,
(in_brd[1] - in_brd[0])/interval,
(in_martian_dst[1] - in_martian_dst[0])/interval,
(in_martian_src[1] - in_martian_src[0])/interval,
(out_hit[1] - out_hit[0])/interval,
(out_slow_tot[1] - out_slow_tot[0])/interval,
(out_slow_mc[1] - out_slow_mc[0])/interval
);
} }
return 1; return 1;
} }
/*
* Compile:
gcc -g -O2 -Wall -o rtstat rtstat.c
*/