[HP-UX] poor performance of setlocale() with +DD64
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Key: STDCXX-823
URL: https://issues.apache.org/jira/browse/STDCXX-823
Project: C++ Standard Library
Issue Type: Bug
Components: External
Environment: HP-UX
Reporter: Martin Sebor
The following test case shows a a precipitous dropoff in the performance in
setlocale() on HP-UX (regardless of the hardware architecture, i.e., on both
IPF and PA-RISC) between +DD32 and DD64:
On HP-UX 11.31/IPF:
{noformat}
$ cat t.c && aCC t.c && time ./a.out 1000 && aCC +DD64 t.c && time ./a.ou>
#include <stdlib.h>
#include <locale.h>
const char* const locales[] = {
"C",
"C.iso88591",
"C.iso885915",
"C.utf8",
"univ.utf8",
"ar_DZ.arabic8",
"ar_DZ.utf8",
"ar_SA.arabic8",
"ar_SA.iso88596",
"zh_CN.hp15CN",
"zh_CN.utf8"
};
void test () {
unsigned i;
for (i = 0; i != sizeof locales / sizeof *locales; ++i)
setlocale (LC_ALL, locales [i]);
}
int main (int argc, char *argv[])
{
unsigned nloops;
nloops = 1 < argc ? strtoul (argv [1], 0, 0) : 10000;
while (nloops--)
test ();
}
real 0m0.466s
user 0m0.180s
sys 0m0.280s
real 0m3.620s
user 0m1.560s
sys 0m2.040s
{noformat}
On HP-UX 11.23/PA:
{noformat}
real 0m1.060s
user 0m0.290s
sys 0m0.510s
real 0m28.550s
user 0m16.110s
sys 0m11.850s
{noformat}
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