further development of mem testing program
#include <sys/resource.h>
#define FILE_NAME "tst_mem1.nc"
-#define NUM_FILE_OPENS 100
+#define NUM_FILE_OPENS 10000
int main()
{
- int dataset_id, time_id, dummyvar_id, idx;
- size_t start[1] = {0};
- size_t count[1] = {100};
- double data[100];
+ int ncid, varid, idx;
struct rusage r_usage;
- for (idx = 0; idx < 100; idx++)
- {
- data[idx]=-99;
- };
-
printf("\n*** Testing netcdf-4 memory use.\n");
printf("*** testing mem use opening/closing file...");
{
long my_rss = 0;
- if (nc_create(FILE_NAME, NC_CLOBBER | NC_NETCDF4, &dataset_id)) ERR;
- if (nc_def_dim(dataset_id, "time", NC_UNLIMITED, &time_id)) ERR;
- if (nc_def_var(dataset_id, "dummy", NC_DOUBLE, 1, &time_id, &dummyvar_id)) ERR;
- if (nc_put_vara(dataset_id, dummyvar_id, start, count, data)) ERR;
- if (nc_close(dataset_id)) ERR;
+ /* if (nc_create(FILE_NAME, NC_CLOBBER | NC_NETCDF4, &ncid)) ERR; */
+ if (nc_create(FILE_NAME, NC_CLOBBER, &ncid)) ERR;
+ if (nc_def_var(ncid, "dummy", NC_DOUBLE, 0, NULL, &varid)) ERR;
+ if (nc_close(ncid)) ERR;
for (idx = 0; idx < NUM_FILE_OPENS; idx++)
{
- if (nc_open(FILE_NAME, NC_NOWRITE, &dataset_id)) ERR;
- if (nc_close(dataset_id)) ERR;
+ if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
+ if (nc_close(ncid)) ERR;
getrusage(RUSAGE_SELF, &r_usage);
+ if (!(idx % 100))
printf("Memory usage: %ld kilobytes\n",r_usage.ru_maxrss);
- if (!my_rss)
+ if (!my_rss || idx < 10)
my_rss = r_usage.ru_maxrss;
else
if (my_rss != r_usage.ru_maxrss) ERR;
