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further development of mem testing program

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This commit is contained in:
Edward Hartnett 2020-02-09 09:04:23 -07:00
parent 2d3f4be2ea
commit 23656e31ed
1 changed files with 11 additions and 19 deletions
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30
nc_perf/tst_mem1.c
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@ -15,39 +15,31 @@
#include <sys/resource.h> #include <sys/resource.h>
#define FILE_NAME "tst_mem1.nc" #define FILE_NAME "tst_mem1.nc"
#define NUM_FILE_OPENS 100 #define NUM_FILE_OPENS 10000
int main() int main()
{ {
int dataset_id, time_id, dummyvar_id, idx; int ncid, varid, idx;
size_t start[1] = {0};
size_t count[1] = {100};
double data[100];
struct rusage r_usage; struct rusage r_usage;
for (idx = 0; idx < 100; idx++)
{
data[idx]=-99;
};
printf("\n*** Testing netcdf-4 memory use.\n"); printf("\n*** Testing netcdf-4 memory use.\n");
printf("*** testing mem use opening/closing file..."); printf("*** testing mem use opening/closing file...");
{ {
long my_rss = 0; long my_rss = 0;
if (nc_create(FILE_NAME, NC_CLOBBER | NC_NETCDF4, &dataset_id)) ERR; /* if (nc_create(FILE_NAME, NC_CLOBBER | NC_NETCDF4, &ncid)) ERR; */
if (nc_def_dim(dataset_id, "time", NC_UNLIMITED, &time_id)) ERR; if (nc_create(FILE_NAME, NC_CLOBBER, &ncid)) ERR;
if (nc_def_var(dataset_id, "dummy", NC_DOUBLE, 1, &time_id, &dummyvar_id)) ERR; if (nc_def_var(ncid, "dummy", NC_DOUBLE, 0, NULL, &varid)) ERR;
if (nc_put_vara(dataset_id, dummyvar_id, start, count, data)) ERR; if (nc_close(ncid)) ERR;
if (nc_close(dataset_id)) ERR;
for (idx = 0; idx < NUM_FILE_OPENS; idx++) for (idx = 0; idx < NUM_FILE_OPENS; idx++)
{ {
if (nc_open(FILE_NAME, NC_NOWRITE, &dataset_id)) ERR; if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
if (nc_close(dataset_id)) ERR; if (nc_close(ncid)) ERR;
getrusage(RUSAGE_SELF, &r_usage); getrusage(RUSAGE_SELF, &r_usage);
printf("Memory usage: %ld kilobytes\n",r_usage.ru_maxrss); if (!(idx % 100))
if (!my_rss) printf("Memory usage: %ld kilobytes\n",r_usage.ru_maxrss);
if (!my_rss || idx < 10)
my_rss = r_usage.ru_maxrss; my_rss = r_usage.ru_maxrss;
else else
if (my_rss != r_usage.ru_maxrss) ERR; if (my_rss != r_usage.ru_maxrss) ERR;