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write exchange stats on exit

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This commit is contained in:
Florian Dold 2018-10-02 17:21:12 +02:00
parent e9c9ca736f
commit 97afbe6364
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GPG Key ID: D2E4F00F29D02A4B
1 changed files with 49 additions and 0 deletions
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49
src/exchange/taler-exchange-httpd.c
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@ -26,6 +26,7 @@
#include <jansson.h>
#include <microhttpd.h>
#include <pthread.h>
#include <sys/resource.h>
#include "taler-exchange-httpd_parsing.h"
#include "taler-exchange-httpd_mhd.h"
#include "taler-exchange-httpd_deposit.h"
@ -844,6 +845,52 @@ open_unix_path (const char *unix_path,
}
/**
* Called when the main thread exits, writes out performance
* stats if requested.
*/
static void
write_stats ()
{
struct GNUNET_DISK_FileHandle *fh;
pid_t pid = getpid ();
char *benchmark_dir;
char *s;
struct rusage usage;
benchmark_dir = getenv ("GNUNET_BENCHMARK_DIR");
if (NULL == benchmark_dir)
return;
GNUNET_asprintf (&s, "%s/taler-exchange-%llu-%llu.txt",
benchmark_dir,
(unsigned long long) pid);
fh = GNUNET_DISK_file_open (s,
(GNUNET_DISK_OPEN_WRITE |
GNUNET_DISK_OPEN_TRUNCATE |
GNUNET_DISK_OPEN_CREATE),
(GNUNET_DISK_PERM_USER_READ |
GNUNET_DISK_PERM_USER_WRITE));
GNUNET_assert (NULL != fh);
GNUNET_free (s);
/* Collect stats, summed up for all threads */
GNUNET_assert (0 == getrusage(RUSAGE_SELF, &usage));
GNUNET_asprintf (&s, "time_exchange sys %llu user %llu\n", \
(unsigned long long) (usage.ru_stime.tv_sec * 1000 * 1000 + usage.ru_stime.tv_usec),
(unsigned long long) (usage.ru_utime.tv_sec * 1000 * 1000 + usage.ru_utime.tv_usec));
GNUNET_assert (GNUNET_SYSERR != GNUNET_DISK_file_write_blocking (fh, s, strlen (s)));
GNUNET_free (s);
GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
}
/**
* The main function of the taler-exchange-httpd server ("the exchange").
*
@ -982,6 +1029,8 @@ main (int argc,
return 1;
}
atexit (write_stats);
#if HAVE_DEVELOPER
if (NULL != input_filename)
{