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Diffstat (limited to 'verify_blkparse.c')
-rw-r--r--verify_blkparse.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/verify_blkparse.c b/verify_blkparse.c
index aae8d7c..5689f43 100644
--- a/verify_blkparse.c
+++ b/verify_blkparse.c
@@ -3,18 +3,33 @@
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
-
-#define MAX_CPUS (512)
+#include <errno.h>
int main(int argc, char *argv[])
{
double this_time, last_time;
char line[256], last_line[256], *p;
int major, minor, cpu, nr, alias;
+ long MAX_CPUS;
unsigned long long total_entries;
- unsigned int last_seq[MAX_CPUS], seq;
+ unsigned int *last_seq;
+ unsigned int seq;
FILE *f;
+#ifdef _SC_NPROCESSORS_CONF
+ MAX_CPUS = sysconf(_SC_NPROCESSORS_CONF);
+ if (MAX_CPUS < 1)
+ {
+ fprintf(stderr, "Could not determine number of CPUs online:\n%s\n",
+ strerror (errno));
+ fprintf(stderr, "Assuming 1024\n");
+ MAX_CPUS = 1024;
+ }
+#else
+ MAX_CPUS = CPU_SETSIZE;
+#endif
+
+ last_seq = malloc( sizeof(unsigned int) * MAX_CPUS );
for (nr = 0; nr < MAX_CPUS; nr++)
last_seq[nr] = -1;
@@ -33,7 +48,7 @@ int main(int argc, char *argv[])
alias = nr = 0;
total_entries = 0;
while ((p = fgets(line, sizeof(line), f)) != NULL) {
- if (sscanf(p, "%3d,%3d %2d %8d %lf", &major, &minor, &cpu, &seq, &this_time) != 5)
+ if (sscanf(p, "%3d,%3d %5d %8d %lf", &major, &minor, &cpu, &seq, &this_time) != 5)
break;
if (this_time < last_time) {